ADOdb Library for PHP

V2.50 14 Nov 2002 (c) 2000-2002 John Lim (jlim@natsoft.com.my)

This software is dual licensed using BSD-Style and LGPL. Where there is any discrepancy, the BSD-Style license will take precedence. This means you can use it in proprietary and commercial products.

Introduction
Unique Features
How People are using ADOdb
Feature Requests and Bug Reports
Installation
Initializing Code ADONewConnection NewADOConnection
Supported Databases
Tutorial
Example 1: Select
Example 2: Advanced Select
Example 3: Insert
Example 4: Debugging  rs2html example
Example 5: MySQL and Menus
Example 6: Connecting to Multiple Databases at once
Example 7: Generating Update and Insert SQL
Example 8: Implementing Scrolling with Next and Previous
Example 9: Exporting in CSV or Tab-Delimited Format
Example 10: Custom filters
Using Custom Error Handlers and PEAR_Error
Data Source Names
Caching
Pivot Tables

REFERENCE

ADOConnection
Connections: Connect PConnect NConnect
Executing SQL: Execute CacheExecute SelectLimit CacheSelectLimit Prepare PrepareSP Parameter
              GetOne CacheGetOne GetRow CacheGetRow GetAll CacheGetAll GetCol CacheGetCol Replace
              ExecuteCursor (oci8 only)
Generates SQL: GetUpdateSQL GetInsertSQL
Blobs: UpdateBlob UpdateClob UpdateBlobFile
Paging/Scrolling: PageExecute CachePageExecute
Cleanup: CacheFlush Close
Transactions: BeginTrans CommitTrans RollbackTrans
Fetching Data: $ADODB_FETCH_MODE
Strings: concat qstr quote
Dates: DBDate DBTimeStamp UnixDate UnixTimeStamp OffsetDate SQLDate
Rows Management: Affected_Rows Insert_ID GenID
Error Handling: ErrorMsg ErrorNo
Data Dictionary (metadata): MetaDatabases MetaTables MetaColumns MetaColumnNames
Deprecated: Bind BlankRecordSet

ADORecordSet
Returns one row:FetchRow FetchInto FetchObject FetchNextObject
Returns all rows:GetArray GetRows GetAssoc
Scrolling:Move MoveNext MoveFirst MoveLast AbsolutePosition CurrentRow AtFirstPage AtLastPage AbsolutePage
Menu generation:GetMenu GetMenu2
Dates:UserDate UserTimeStamp UnixDate UnixTimeStamp
Recordset Info:RecordCount PO_RecordSet
Field Info:FieldCount FetchField MetaType
Cleanup: Close
Deprecated: GetRowAssoc Fields

rs2html  example
Differences between ADOdb and ADO
Database Driver Guide
Change Log

Introduction

PHP's database access functions are not standardised. This creates a need for a database class library to hide the differences between the different database API's (encapsulate the differences) so we can easily switch databases.

We currently support MySQL, Oracle, Microsoft SQL Server, Sybase, Sybase SQL Anywhere, Informix, PostgreSQL, FrontBase, Interbase (Firebird and Borland variants), Foxpro, Access, ADO and ODBC. We have had successful reports of connecting to Progress and DB2 via ODBC. We hope more people will contribute drivers to support other databases.

PHP4 supports session variables. You can store your session information using ADOdb for true portability and scalability. See adodb-session.php for more information.

Also read http://php.weblogs.com/portable_sql (also available as tips_portable_sql.htm in the release) for tips on writing portable SQL.

Unique Features of ADOdb

• Easy for Windows programmers to adapt to because many of the conventions are similar to Microsoft's ADO.
• Unlike other PHP database classes which focus only on select statements, we provide support code to handle inserts and updates which can be adapted to multiple databases quickly. Methods are provided for date handling, string concatenation and string quoting characters for differing databases.
• A metatype system is built in so that we can figure out that types such as CHAR, TEXT and STRING are equivalent in different databases.
• Easy to port because all the database dependant code are stored in stub functions. You do not need to port the core logic of the classes.
• PHP4 session support. See adodb-session.php.

How People are using ADOdb

• PhpLens is a commercial data grid component that allows both cool Web designers and serious unshaved programmers to develop and maintain databases on the Web easily. Developed by the author of ADOdb.

• PHAkt: PHP Extension for DreamWeaver Ultradev allows you to script PHP in the popular Web page editor. Database handling provided by ADOdb.

• Analysis Console for Intrusion Databases (ACID): PHP-based analysis engine to search and process a database of security incidents generated by security-related software such as IDSes and firewalls (e.g. Snort, ipchains). By Roman Danyliw.

• PostNuke is a very popular free content management system and weblog system. It offers full CSS support, HTML 4.01 transitional compliance throughout, an advanced blocks system, and is fully multi-lingual enabled.

• EasyPublish CMS is another free content management system for managing information and integrated modules on your internet, intranet- and extranet-sites. From Norway.

• NOLA is a full featured accounting, inventory, and job tracking application. It is licensed under the GPL, and developed by Noguska.

Feature Requests and Bug Reports

Feature requests and bug reports can be emailed to jlim#natsoft.com.my or posted to the ADOdb Help forums at http://phplens.com/lens/lensforum/topics.php?id=4.

Installation Guide

Make sure you are running PHP4.01pl2 or later (it uses require_once and include_once). Unpack all the files into a directory accessible by your webserver.

To test, try modifying some of the tutorial examples. Make sure you customize the connection settings correctly. You can debug using:

<?php
	include('adodb/adodb.inc.php');
	$db = ADONewConnection($database);
	$db->debug = true;
	$db->Connect($server, $user, $password, $database);
	$rs = $db->Execute('select * from some_small_table');
   print "<pre>";
	print_r($rs->GetRows());
   print "</pre>";
?>

Code Initialization

When running ADOdb, at least two files are loaded. First is adodb/adodb.inc.php, which contains all functions used by all database classes. The code specific to a particular database is in the adodb/driver/adodb-????.inc.php file.

For example, to connect to a mysql database:

include('/path/to/set/here/adodb.inc.php');
$conn = &ADONewConnection('mysql');

Whenever you need to connect to a database, you create a Connection object using the ADONewConnection($driver) function. NewADOConnection($driver) is an alternative name for the same function.

At this point, you are not connected to the database. You will use $conn->Connect() or $conn->PConnect() to perform the actual connection.

See the examples below in the Tutorial.

Databases Supported

The "Tested" column indicates how extensively the code has been tested and used.
A = well tested and used by many people
B = tested and usable, but some features might not be implemented
C = user contributed or experimental driver. Might not fully support all of the latest features of ADOdb.

The column "RecordCount() usable" indicates whether RecordCount() return the number of rows, or returns -1 when a SELECT statement is executed. If this column displays Y/N then the RecordCount() is emulated when the global variable $ADODB_COUNTRECS=true, which is the default. Note that for large recordsets, it might be better to disable RecordCount() emulation because substantial amounts of memory are required to cache the recordset for counting. This variable is checked every time a query is executed, so you can selectively choose which recordsets to count.

All databases that support $ADODB_FETCH_MODE work with ADODB_FETCH_NUM and ADODB_FETCH_ASSOC. How it supports ADODB_FETCH_DEFAULT is implementation dependant and might not be portable. Similarly ADODB_FETCH_BOTH is implementation dependant and is not supported by all databases.

Tutorial

Example 1: Select Statement

Task: Connect to the Access Northwind DSN, display the first 2 columns of each row.

In this example, we create a ADOConnection object, which represents the connection to the database. The connection is initiated with PConnect, which is a persistent connection. Whenever we want to query the database, we call the ADOConnection.Execute() function. This returns an ADORecordSet object which is actually a cursor that holds the current row in the array fields[]. We use MoveNext() to move from row to row.

NB: A useful function that is not used in this example is SelectLimit, which allows us to limit the number of rows shown.

<?
include('adodb.inc.php');	   # load code common to ADOdb
$conn = &ADONewConnection('access');	# create a connection
$conn->PConnect('northwind');   # connect to MS-Access, northwind DSN
$recordSet = &$conn->Execute('select * from products');
if (!$recordSet) 
	print $conn->ErrorMsg();
else
while (!$recordSet->EOF) {
	print $recordSet->fields[0].' '.$recordSet->fields[1].'<BR>';
	$recordSet->MoveNext();
}

$recordSet->Close(); # optional
$conn->Close(); # optional

?>

The $recordSet returned stores the current row in the $recordSet->fields array, indexed by column number (starting from zero). We use the MoveNext() function to move to the next row. The EOF property is set to true when end-of-file is reached. If an error occurs in Execute(), we return false instead of a recordset.

The $recordSet->fields[] array is generated by the PHP database extension. Some database extensions only index by number and do not index the array by field name. To force indexing by name - that is associative arrays - use the $ADODB_FETCH_MODE global variable. Each recordset saves and uses whatever fetch mode was set when the recordset was created in Execute() or SelectLimit().

	$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
	$rs1 = $db->Execute('select * from table');
	$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
	$rs2 = $db->Execute('select * from table');
	print_r($rs1->fields); # shows array([0]=>'v0',[1] =>'v1')
	print_r($rs2->fields); # shows array(['col1']=>'v0',['col2'] =>'v1')

To get the number of rows in the select statement, you can use $recordSet->RecordCount(). Note that it can return -1 if the number of rows returned cannot be determined.

Example 2: Advanced Select with Field Objects

Select a table, display the first two columns. If the second column is a date or timestamp, reformat the date to US format.

<?
include('adodb.inc.php');	   # load code common to ADOdb
$conn = &ADONewConnection('access');	# create a connection
$conn->PConnect('northwind');   # connect to MS-Access, northwind dsn
$recordSet = &$conn->Execute('select CustomerID,OrderDate from Orders');
if (!$recordSet) 
	print $conn->ErrorMsg();
else
while (!$recordSet->EOF) {
	$fld = $recordSet->FetchField(1);
	$type = $recordSet->MetaType($fld->type);

	if ( $type == 'D' || $type == 'T') 
		print $recordSet->fields[0].' '.
			$recordSet->UserDate($recordSet->fields[1],'m/d/Y').'<BR>';
	else 
		print $recordSet->fields[0].' '.$recordSet->fields[1].'<BR>';

	$recordSet->MoveNext();
}
$recordSet->Close(); # optional
$conn->Close(); # optional

?>

In this example, we check the field type of the second column using FetchField(). This returns an object with at least 3 fields.

• name: name of column
• type: native field type of column
• max_length: maximum length of field. Some databases such as MySQL do not return the maximum length of the field correctly. In these cases max_length will be set to -1.

We then use MetaType() to translate the native type to a generic type. Currently the following generic types are defined:

• C: character fields that should be shown in a <input type="text"> tag.
• X: TeXt, large text fields that should be shown in a <textarea>
• B: Blobs, or Binary Large Objects. Typically images.
• D: Date field
• T: Timestamp field
• L: Logical field (boolean or bit-field)
• I:  Integer field
• N: Numeric field. Includes autoincrement, numeric, floating point, real and integer.
• R: Serial field. Includes serial, autoincrement integers. This works for selected databases.

If the metatype is of type date or timestamp, then we print it using the user defined date format with UserDate(), which converts the PHP SQL date string format to a user defined one. Another use for MetaType() is data validation before doing an SQL insert or update.

Example 3: Inserting

Insert a row to the Orders table containing dates and strings that need to be quoted before they can be accepted by the database, eg: the single-quote in the word John's.

<?
include('adodb.inc.php');	   # load code common to ADOdb
$conn = &ADONewConnection('access');	# create a connection

$conn->PConnect('northwind');   # connect to MS-Access, northwind dsn
$shipto = $conn->qstr("John's Old Shoppe");

$sql = "insert into orders (customerID,EmployeeID,OrderDate,ShipName) ";
$sql .= "values ('ANATR',2,".$conn->DBDate(time()).",$shipto)";

if ($conn->Execute($sql) === false) {
	print 'error inserting: '.$conn->ErrorMsg().'<BR>';
}
?>

In this example, we see the advanced date and quote handling facilities of ADOdb. The unix timestamp (which is a long integer) is appropriately formated for Access with DBDate(), and the right escape character is used for quoting the John's Old Shoppe, which is John''s Old Shoppe and not PHP's default John's Old Shoppe with qstr().

Observe the error-handling of the Execute statement. False is returned by Execute() if an error occured. The error message for the last error that occurred is displayed in ErrorMsg(). Note: php_track_errors might have to be enabled for error messages to be saved.

Example 4: Debugging

<?
include('adodb.inc.php');	   # load code common to ADOdb
$conn = &ADONewConnection('access');	# create a connection
$conn->PConnect('northwind');   # connect to MS-Access, northwind dsn
$shipto = $conn->qstr("John's Old Shoppe");
$sql = "insert into orders (customerID,EmployeeID,OrderDate,ShipName) ";
$sql .= "values ('ANATR',2,".$conn->FormatDate(time()).",$shipto)";
$conn->debug = true;
if ($conn->Execute($sql) === false) print 'error inserting';
?>

In the above example, we have turned on debugging by setting debug = true. This will display the SQL statement before execution, and also show any error messages. There is no need to call ErrorMsg() in this case. For displaying the recordset, see the rs2html() example.

Also see the section on Custom Error Handlers.

Example 5: MySQL and Menus

Connect to MySQL database agora, and generate a <select> menu from an SQL statement where the <option> captions are in the 1st column, and the value to send back to the server is in the 2nd column.

<?
include('adodb.inc.php'); # load code common to ADOdb
$conn = &ADONewConnection('mysql');  # create a connection
$conn->PConnect('localhost','userid','','agora');# connect to MySQL, agora db
$sql = 'select CustomerName, CustomerID from customers';
$rs = $conn->Execute($sql);
print $rs->GetMenu('GetCust','Mary Rosli');
?>

Here we define a menu named GetCust, with the menu option 'Mary Rosli' selected. See GetMenu(). We also have functions that return the recordset as an array: GetArray(), and as an associative array with the key being the first column: GetAssoc().

Aslo new to ADOdb 1.50 or later is the global variable $ADODB_FETCH_MODE. This allows you to define whether you want associative or numeric indexing for your arrays.

Example 6: Connecting to 2 Databases At Once

<?
include('adodb.inc.php');	 # load code common to ADOdb
$conn1 = &ADONewConnection('mysql');  # create a mysql connection
$conn2 = &ADONewConnection('oracle');  # create a oracle connection

$conn1->PConnect($server, $userid, $password, $database);
$conn2->PConnect(false, $ora_userid, $ora_pwd, $oraname);

$conn1->Execute('insert ...');
$conn2->Execute('update ...');
?>

Example 7: Generating Update and Insert SQL

We show how the functions can be used when accessing a table with the following fields: (ID, FirstName, LastName, Created).

Before these functions can be called, you need to initialize the recordset by performing a select on the table. Idea and code by Jonathan Younger jyounger#unilab.com.

<?
#==============================================
# SAMPLE GetUpdateSQL() and GetInsertSQL() code
#==============================================
include('adodb.inc.php');
include('tohtml.inc.php');

#==========================
# This code tests an insert

$sql = "SELECT * FROM ADOXYZ WHERE id = -1"; 
# Select an empty record from the database

$conn = &ADONewConnection("mysql");  # create a connection
$conn->debug=1;
$conn->PConnect("localhost", "admin", "", "test"); # connect to MySQL, testdb
$rs = $conn->Execute($sql); # Execute the query and get the empty recordset

$record = array(); # Initialize an array to hold the record data to insert

# Set the values for the fields in the record
$record["firstname"] = "Bob";
$record["lastname"] = "Smith";
$record["created"] = time();

# Pass the empty recordset and the array containing the data to insert
# into the GetInsertSQL function. The function will process the data and return
# a fully formatted insert sql statement.
$insertSQL = $conn->GetInsertSQL($rs, $record);

$conn->Execute($insertSQL); # Insert the record into the database

#==========================
# This code tests an update

$sql = "SELECT * FROM ADOXYZ WHERE id = 1"; 
# Select a record to update

$rs = $conn->Execute($sql); # Execute the query and get the existing record to update

$record = array(); # Initialize an array to hold the record data to update

# Set the values for the fields in the record
$record["firstname"] = "Caroline";
$record["lastname"] = "Smith"; # Update Caroline's lastname from Miranda to Smith

# Pass the single record recordset and the array containing the data to update
# into the GetUpdateSQL function. The function will process the data and return
# a fully formatted update sql statement with the correct WHERE clause.
# If the data has not changed, no recordset is returned
$updateSQL = $conn->GetUpdateSQL($rs, $record);

$conn->Execute($updateSQL); # Update the record in the database
$conn->Close();
?>

Example 8: Implementing Scrolling with Next and Previous

The following code creates a very simple recordset pager, where you can scroll from page to page of a recordset.

include_once('../adodb.inc.php');
include_once('../adodb-pager.inc.php');
session_start();

$db = NewADOConnection('mysql');

$db->Connect('localhost','root','','xphplens');

$sql = "select * from adoxyz ";

$pager = new ADODB_Pager($db,$sql);
$pager->Render($rows_per_page=5);

This will create a basic record pager that looks like this:

|<   <<   >>   >|

ID First Name Last Name Date Created 36  Alan  Turing  Sat 06, Oct 2001  37  Serena  Williams  Sat 06, Oct 2001  38  Yat Sun  Sun  Sat 06, Oct 2001  39  Wai Hun  See  Sat 06, Oct 2001  40  Steven  Oey  Sat 06, Oct 2001

Page 8/10

The number of rows to display at one time is controled by the Render($rows) method. If you do not pass any value to Render(), ADODB_Pager will default to 10 records per page.

You can control the column titles by modifying your SQL (supported by most databases):

$sql = 'select id as "ID", firstname as "First Name", 
		  lastname as "Last Name", created as "Date Created" 
		from adoxyz';

The above code can be found in the adodb/tests/testpaging.php example included with this release, and the class ADODB_Pager in adodb/adodb-pager.inc.php. The ADODB_Pager code can be adapted by a programmer so that the text links can be replaced by images, and the dull white background be replaced with more interesting colors.

You can also allow display of html by setting $pager->htmlSpecialChars = false.

Some of the code used here was contributed by Iván Oliva and Cornel G.

Example 9: Exporting in CSV or Tab-Delimited Format

We provide some helper functions to export in comma-separated-value (CSV) and tab-delimited formats:

include_once('/path/to/adodb/toexport.inc.php');
include_once('/path/to/adodb/adodb.inc.php');

$db = &NewADOConnection('mysql');
$db->Connect($server, $userid, $password, $database);

$rs = $db->Execute('select fname as "First Name", surname as "Surname" from table');

print "<pre>";
print rs2csv($rs); # return a string, CSV format
print '<hr>';

$rs->MoveFirst(); # note, some databases do not support MoveFirst
print rs2tab($rs,false); # return a string, tab-delimited
						 # false == suppress field names in first line
print '<hr>';
$rs->MoveFirst();
rs2tabout($rs); # send to stdout directly (there is also an rs2csvout function)
print "</pre>";

$rs->MoveFirst();
$fp = fopen($path, "w");
if ($fp) {
  rs2csvfile($rs, $fp); # write to file (there is also an rs2tabfile function)
  fclose($fp);
}

Carriage-returns or newlines are converted to spaces. Field names are returned in the first line of text. Strings containing the delimiter character are quoted with double-quotes. Double-quotes are double-quoted again. This conforms to Excel import and export guide-lines.

All the above functions take as an optional last parameter, $addtitles which defaults to true. When set to false field names in the first line are suppressed.

Example 10: Recordset Filters

Sometimes we want to pre-process all rows in a recordset before we use it. For example, we want to ucwords all text in recordset.

include_once('adodb/rsfilter.inc.php');
include_once('adodb/adodb.inc.php');

// ucwords() every element in the recordset
function do_ucwords(&$arr,$rs)
{
	foreach($arr as $k => $v) {
		$arr[$k] = ucwords($v);
	}
}

$db = NewADOConnection('mysql');
$db->PConnect('server','user','pwd','db');

$rs = $db->Execute('select ... from table');
$rs = RSFilter($rs,'do_ucwords');

The RSFilter function takes 2 parameters, the recordset, and the name of the filter function. It returns the processed recordset scrolled to the first record. The filter function takes two parameters, the current row as an array, and the recordset object. For future compatibility, you should not use the original recordset object.

Using Custom Error Handlers and PEAR_Error

ADOdb provides two custom handlers which you can modify for your needs. The first one is in the adodb-errorhandler.inc.php file. This makes use of the standard PHP functions error_reporting to control what error messages types to display, and trigger_error which invokes the default PHP error handler.

Including the above file will cause trigger_error($errorstring,E_USER_ERROR) to be called when
(a) Connect() or PConnect() fails, or
(b) a function that executes SQL statements such as Execute() or SelectLimit() has an error.
(c) GenID() appears to go into an infinite loop.

The $errorstring is generated by ADOdb and will contain useful debugging information similar to the error.log data generated below. This file adodb-errorhandler.inc.php should be included before you create any ADOConnection objects.

If you define error_reporting(0), no errors will be shown. If you set error_reporting(E_ALL), all errors will be displayed on the screen.

<?php
error_reporting(E_ALL); # show any error messages triggered
include('adodb-errorhandler.inc.php');
include('adodb.inc.php');
include('tohtml.inc.php');
$c = NewADOConnection('mysql');
$c->PConnect('localhost','root','','northwind');
$rs=$c->Execute('select * from productsz'); #invalid table productsz');
if ($rs) $rs2html($rs);
?>

If you want to log the error message, you can do so by defining the following optional constants ADODB_ERROR_LOG_TYPE and ADODB_ERROR_LOG_DEST. ADODB_ERROR_LOG_TYPE is the error log message type (see error_log in the PHP manual). In this case we set it to 3, which means log to the file defined by the constant ADODB_ERROR_LOG_DEST.

<?php
error_reporting(0); # do not echo any errors
define('ADODB_ERROR_LOG_TYPE',3);
define('ADODB_ERROR_LOG_DEST','C:/errors.log');
include('adodb-errorhandler.inc.php');
include('adodb.inc.php');
include('tohtml.inc.php');

$c = NewADOConnection('mysql');
$c->PConnect('localhost','root','','northwind');
$rs=$c->Execute('select * from productsz'); ## invalid table productsz
if ($rs) $rs2html($rs);
?>

(2001-10-28 14:20:38) mysql error: [1146: Table 'northwind.productsz' doesn't exist] in
 EXECUTE("select * from productsz")

<?php
include('adodb-errorpear.inc.php');
include('adodb.inc.php');
include('tohtml.inc.php');
$c = NewADOConnection('mysql');
$c->PConnect('localhost','root','','northwind');
$rs=$c->Execute('select * from productsz'); #invalid table productsz');
if ($rs) $rs2html($rs);
else {
	$e = ADODB_Pear_Error();
	echo '<p>',$e->message,'</p>';
}
?>

You can use a PEAR_Error derived class by defining the constant ADODB_PEAR_ERROR_CLASS before the adodb-errorpear.inc.php file is included. For easy debugging, you can set the default error handler in the beginning of the PHP script to PEAR_ERROR_DIE, which will cause an error message to be printed, then halt script execution:

include('PEAR.php');
PEAR::setErrorHandling('PEAR_ERROR_DIE');

Note that we do not explicitly return a PEAR_Error object to you when an error occurs. We return false instead. You have to call ADODB_Pear_Error() to get the last error or use the PEAR_ERROR_DIE technique.

Error Messages

Error messages are outputted using the static method ADOConnnection::outp($msg,$newline=true). By default, it sends the messages to the client. You can override this to perform error-logging.

Data Source Names

We now support connecting using PEAR style DSN's. A DSN is a connection string of the form:

$dsn = "$driver://$username:$password@$hostname/$databasename";

You pass the DSN to the static class function DB::Connect. An example:

   include_once('../adodb/adodb-pear.inc.php');
   $username = 'root';
   $password = '';
   $hostname = 'localhost';
   $databasename = 'xphplens';
   $driver = 'mysql';
   $dsn = "$driver://$username:$password@$hostname/$databasename";

   $db = DB::Connect($dsn);
   $rs = $db->Execute('select firstname,lastname from adoxyz');
   $cnt = 0;
   while ($arr = $rs->FetchRow()) {
		print_r($arr); print "<br>";
   }

This requires PEAR to be installed and in the default include path in php.ini.

Caching of Recordsets

ADOdb now supports caching of recordsets using the CacheExecute( ), CachePageExecute( ) and CacheSelectLimit( ) functions. There are similar to the non-cache functions, except that they take a new first parameter, $secs2cache.

An example:

include('adodb.inc.php'); # load code common to ADOdb
$ADODB_CACHE_DIR = '/usr/ADODB_cache';
$conn = &ADONewConnection('mysql');  # create a connection
$conn->PConnect('localhost','userid','','agora');# connect to MySQL, agora db
$sql = 'select CustomerName, CustomerID from customers';
$rs = $conn->CacheExecute(15,$sql);

The first parameter is the number of seconds to cache the query. Subsequent calls to that query will used the cached version stored in $ADODB_CACHE_DIR. To force a query to execute and flush the cache, call CacheExecute() with the first parameter set to zero. Alternatively, use the CacheFlush($sql) call.

For the sake of security, we recommend you set register_globals=off in php.ini if you are using $ADODB_CACHE_DIR.

In ADOdb 1.80 onwards, the secs2cache parameter is optional in CacheSelectLimit() and CacheExecute(). If you leave it out, it will use the $connection->cacheSecs parameter, which defaults to 60 minutes.

	$conn->Connect(...);
	$conn->cacheSecs = 3600*24; # cache 24 hours
	$rs = $conn->CacheExecute('select * from table');

Please note that magic_quotes_runtime should be turned off. More info.

Pivot Tables

Since ADOdb 2.30, we support the generation of SQL to create pivot tables, also known as cross-tabulations. For further explanation read this DevShed Cross-Tabulation tutorial. We assume that your database supports the SQL case-when expression.

# Query the main "product" table
# Set the rows to CompanyName
# and the columns to the values of Categories
# and define the joins to link to lookup tables 
# "categories" and "suppliers"
#
 include "adodb/pivottable.php";
 $sql = PivotTableSQL(
 	$gDB,                                      # adodb connection
 	'products p ,categories c ,suppliers s',   # tables
	'CompanyName',                             # rows (multiple fields allowed)
	'CategoryName',                            # column to pivot on 
	'p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID' # joins/where
);

This will generate the following SQL:

SELECT CompanyName,
SUM(CASE WHEN CategoryName='Beverages' THEN 1 ELSE 0 END) AS "Beverages",
SUM(CASE WHEN CategoryName='Condiments' THEN 1 ELSE 0 END) AS "Condiments",
SUM(CASE WHEN CategoryName='Confections' THEN 1 ELSE 0 END) AS "Confections",
SUM(CASE WHEN CategoryName='Dairy Products' THEN 1 ELSE 0 END) AS "Dairy Products",
SUM(CASE WHEN CategoryName='Grains/Cereals' THEN 1 ELSE 0 END) AS "Grains/Cereals",
SUM(CASE WHEN CategoryName='Meat/Poultry' THEN 1 ELSE 0 END) AS "Meat/Poultry",
SUM(CASE WHEN CategoryName='Produce' THEN 1 ELSE 0 END) AS "Produce",
SUM(CASE WHEN CategoryName='Seafood' THEN 1 ELSE 0 END) AS "Seafood",
SUM(1) as Total
FROM products p ,categories c ,suppliers s WHERE p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID
GROUP BY CompanyName

You can also pivot on numerical columns and generate totals by using ranges. This code was revised in ADODB 2.41 and is not backward compatible. The second example shows this:

 $sql = PivotTableSQL(
 	$gDB,                                       # adodb connection
 	'products p ,categories c ,suppliers s',    # tables
	'CompanyName',                              # rows (multiple fields allowed)
   array(                                       # column ranges
	' 0 '      => 'UnitsInStock <= 0',
	"1 to 5"   => '0 < UnitsInStock and UnitsInStock <= 5',
	"6 to 10"  => '5 < UnitsInStock and UnitsInStock <= 10',
	"11 to 15" => '10 < UnitsInStock and UnitsInStock <= 15',
	"16+"      => '15 < UnitsInStock'
	),
	' p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID', # joins/where
	'UnitsInStock',                             # sum this field
	'Sum '                                      # sum label prefix
);

Which generates:

SELECT CompanyName,
SUM(CASE WHEN UnitsInStock <= 0 THEN UnitsInStock ELSE 0 END) AS "Sum 0 ",
SUM(CASE WHEN 0 < UnitsInStock and UnitsInStock <= 5 THEN UnitsInStock ELSE 0 END) AS "Sum 1 to 5",
SUM(CASE WHEN 5 < UnitsInStock and UnitsInStock <= 10 THEN UnitsInStock ELSE 0 END) AS "Sum 6 to 10",
SUM(CASE WHEN 10 < UnitsInStock and UnitsInStock <= 15 THEN UnitsInStock ELSE 0 END) AS "Sum 11 to 15",
SUM(CASE WHEN 15 < UnitsInStock THEN UnitsInStock ELSE 0 END) AS "Sum 16+",
SUM(UnitsInStock) AS "Sum UnitsInStock",
SUM(1) as Total,
FROM products p ,categories c ,suppliers s WHERE p.CategoryID = c.CategoryID and s.SupplierID= p.SupplierID
GROUP BY CompanyName

Global Variables

$ADODB_COUNTRECS

If the database driver API does not support counting the number of records returned in a SELECT statement, the function RecordCount() is emulated when the global variable $ADODB_COUNTRECS is set to true, which is the default. We emulate this by buffering the records, which can take up large amounts of memory for big recordsets. Set this variable to false for the best performance. This variable is checked every time a query is executed, so you can selectively choose which recordsets to count.

$ADODB_CACHE_DIR

chown -R apache /path/to/adodb/cache
chgrp -R apache /path/to/adodb/cache

define('ADODB_FETCH_DEFAULT',0);
define('ADODB_FETCH_NUM',1);
define('ADODB_FETCH_ASSOC',2);
define('ADODB_FETCH_BOTH',3);

	$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
	$rs1 = $db->Execute('select * from table');
	$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
	$rs2 = $db->Execute('select * from table');
	print_r($rs1->fields); # shows array([0]=>'v0',[1] =>'v1')
	print_r($rs2->fields); # shows array(['col1']=>'v0',['col2'] =>'v1')

 # $oraname in tnsnames.ora/ONAMES/HOSTNAMES
 $conn->Connect(false, 'scott', 'tiger', $oraname); 
 $conn->Connect('server:1521', 'scott', 'tiger', 'ServiceName'); # bypass tnsnames.ora

 $conn = &NewADOConnection('mysql');
 $conn->autoRollback = true; # default is false
 $conn->PConnect(...); # rollback here

Then when doing a persistent connection with PConnect( ), ADOdb will perform a rollback first. This is because it is documented that PHP is not guaranteed to rollback existing failed transactions when persistent connections are used. This is implemented in Oracle, MySQL, PgSQL, MSSQL, ODBC currently.

NConnect($host,[$user],[$password],[$database])

Always force new connection. In contrast, PHP sometimes reuses connections when you use Connect() or PConnect(). Currently works only on oci8 drivers. For other drivers, NConnect() works like Connect().

Execute($sql,$inputarr=false)

 $conn->Execute("SELECT * FROM TABLE WHERE COND=:val", array('val'=> $val));
 

  $conn->Execute("SELECT * FROM TABLE WHERE COND=?", array($val));

$rs = $db->Execute('select * from table where val=?', array('10'));

$rs = $db->Execute('select name from table where val=:key', 
  array('key' => 10));

  include('adodb.inc.php'); 
  include('tohtml.inc.php');
  $ADODB_CACHE_DIR = '/usr/local/ADOdbcache';
  $conn = &ADONewConnection('mysql'); 
  $conn->PConnect('localhost','userid','password','database');
  $rs = $conn->CacheExecute(15, 'select * from table'); # cache 15 secs
  rs2html($rs); /* recordset to html table */  

	$conn->Connect(...);
   	$conn->cacheSecs = 3600*24; // cache 24 hours
	$rs = $conn->CacheExecute('select * from table');

    $db = ADONewConnection("oci8"); 
    $db->Connect("foo.com:1521", "uid", "pwd", "FOO"); 
    $rs = $db->ExecuteCursor("begin :cursorvar := getdata('param1'); end;", 'cursorvar'); 
    # $rs is now just like any other ADOdb recordset object
    rs2html($rs);

	$stmt = $db->Prepare("BEGIN :RS := SP_FOO(); END;");
	$db->Parameter($stmt, $cur, 'RS', false, -1, OCI_B_CURSOR);
	$rs = $db->Execute($stmt);

 $conn->SelectLimit("SELECT * FROM TABLE WHERE COND=:val", 100,-1,array('val'=> $val));
 

 $conn->SelectLimit("SELECT * FROM TABLE WHERE COND=?", 100,-1,array('val'=> $val));

	$conn->Connect(...);
   	$conn->cacheSecs = 3600*24; // cache 24 hours
	$rs = $conn->CacheSelectLimit('select * from table',10);

	# for oracle
	$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, empty_blob())');
	$conn->UpdateBlob('blobtable','blobcol',$blobvalue,'id=1');
	
	# non oracle databases
	$conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
	$conn->UpdateBlob('blobtable','blobcol',$blobvalue,'id=1');

	# for oracle
	$conn->Execute('INSERT INTO clobtable (id, clobcol) VALUES (1, empty_clob())');
	$conn->UpdateBlob('clobtable','clobcol',$clobvalue,'id=1');
	
	# non oracle databases
	$conn->Execute('INSERT INTO clobtable (id, clobcol) VALUES (1, null)');
	$conn->UpdateBlob('clobtable','clobcol',$clobvalue,'id=1');

# single field primary key
$ret = $db->Replace('atable', 
	array('id'=>1000,'firstname'=>'Harun','lastname'=>'Al-Rashid'),
	'id',
	'firstname',$autoquote = true);	
# generates UPDATE atable SET firstname='Harun',lastname='Al-Rashid' WHERE id=1000
# or INSERT INTO atable (id,firstname,lastname) VALUES (1000,'Harun','Al-Rashid')

# compound key
$ret = $db->Replace('atable2', 
	array('firstname'=>'Harun','lastname'=>'Al-Rashid', 'age' => 33, 'birthday' => 'null'),
	array('lastname','firstname'),
	'firstname',$autoquote = true);

# no auto-quoting
$ret = $db->Replace('atable2', 
	array('firstname'=>"'Harun'",'lastname'=>"'Al-Rashid'", 'age' => 'null'),
	array('lastname','firstname'),
	'firstname');	

CachePageExecute($secs2cache, $sql, $nrows, $page, $inputarr=false)

Used for pagination of recordset. $page is 1-based. See Example 8. Caching version of PageExecute.

$DB->BeginTrans();
$DB->Execute("update table1 set val=$val1 where id=$id");
$DB->Execute("update table2 set val=$val2 where id=$id");
$DB->CommitTrans();

$DB->BeginTrans();
$ok = $DB->Execute("update table1 set val=$val1 where id=$id");
if ($ok) $ok = $DB->Execute("update table2 set val=$val2 where id=$id");
if ($ok) $DB->CommitTrans();
else $DB->RollbackTrans();

$DB->BeginTrans();
$ok = $DB->Execute("update table1 set val=$val1 where id=$id");
if ($ok) $ok = $DB->Execute("update table2 set val=$val2 where id=$id");
$DB->CommitTrans($ok);

Executes the SQL and returns the all the rows as a 2-dimensional array. The recordset is discarded for you automatically. If an error occurs, false is returned.

GetCol($sql)

Executes the SQL and returns all elements of the first column as a 1-dimensional array. The recordset is discarded for you automatically. If an error occurs, false is returned.

CacheGetOne([$secs2cache,] $sql), CacheGetRow([$secs2cache,] $sql), CacheGetAll([$secs2cache,] $sql), CacheGetCol([$secs2cache,] $sql)

Prepares an SQL query for repeated execution. Only supported internally by interbase, oci8 and selected ODBC-based drivers, otherwise it is emulated. There is no performance advantage to using Prepare() with emulation.

Returns an array containing the original sql statement in the first array element; the remaining elements of the array are driver dependent. If there is an error, or we are emulating Prepare( ), we return the original $sql string. This is because all error-handling has been centralized in Execute( ).

Example:

$stmt = $DB->Prepare('insert into table (col1,col2) values (?,?)');
for ($i=0; $i < $max; $i++)
	$DB->Execute($stmt,array((string) rand(), $i));

# @RETVAL = SP_RUNSOMETHING @myid,@group
$stmt = $db->PrepareSP('SP_RUNSOMETHING'); 
# note that the parameter name does not have @ in front!
$db->Parameter($stmt,$id,'myid'); 
$db->Parameter($stmt,$group,'group',false,64);
# return value in mssql - RETVAL is hard-coded name 
$db->Parameter($stmt,$ret,'RETVAL',true); 
$db->Execute($stmt); 

An oci8 example:

# For oracle, Prepare and PrepareSP are identical
$stmt = $db->PrepareSP(
	"declare RETVAL integer; 
	 begin 
		:RETVAL := SP_RUNSOMETHING(:myid,:group); 
	 end;");
$db->Parameter($stmt,$id,'myid');
$db->Parameter($stmt,$group,'group',false,64);
$db->Parameter($stmt,$ret,'RETVAL',true);
$db->Execute($stmt);

$id = 0; $i = 0;
$stmt = $db->PrepareSP( "update table set val=:i where id=:id");
$db->Parameter($stmt,$id,'id');
$db->Parameter($stmt,$i, 'i');
for ($cnt=0; $cnt < 1000; $cnt++) {
	$id = $cnt; 
	$i = $cnt * $cnt; # works with oci8!
	$db->Execute($stmt); 
}

This is a low-level function supported only by the oci8 driver. Avoid using unless you only want to support Oracle. The Parameter( ) function is the recommended way to go with bind variables.

Bind( ) allows you to use bind variables in your sql statement. This binds a PHP variable to a name defined in an Oracle sql statement that was previously prepared using Prepare(). Oracle named variables begin with a colon, and ADOdb requires the named variables be called :0, :1, :2, :3, etc. The first invocation of Bind() will match :0, the second invocation will match :1, etc. Binding can provide 100% speedups for insert, select and update statements.

The other variables, $size sets the buffer size for data storage, $type is the optional descriptor type OCI_B_FILE (Binary-File), OCI_B_CFILE (Character-File), OCI_B_CLOB (Character-LOB), OCI_B_BLOB (Binary-LOB) and OCI_B_ROWID (ROWID). Lastly, instead of using the default :0, :1, etc names, you can define your own bind-name using $name.

The following example shows 3 bind variables being used: p1, p2 and p3. These variables are bound to :0, :1 and :2.

$stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:0, :1, :2)");
$DB->Bind($stmt, $p1);
$DB->Bind($stmt, $p2);
$DB->Bind($stmt, $p3);
for ($i = 0; $i < $max; $i++) { 
   $p1 = ?; $p2 = ?; $p3 = ?;
   $DB->Execute($stmt);
}

You can also use named variables:

$stmt = $DB->Prepare("insert into table (col0, col1, col2) values (:name0, :name1, :name2)");
$DB->Bind($stmt, $p1, "name0");
$DB->Bind($stmt, $p2, "name1");
$DB->Bind($stmt, $p3, "name2");
for ($i = 0; $i < $max; $i++) { 
   $p1 = ?; $p2 = ?; $p3 = ?;
   $DB->Execute($stmt);
}

This function is available in both ADORecordSet and ADOConnection since 1.91.

OffsetDate($dayFraction, $basedate=false)

Allows you to calculate future and past dates based on $basedate in a portable fashion. If $basedate is not defined, then the current date (at 12 midnight) is used. Returns the SQL string that performs the calculation when passed to Execute().

For example, in Oracle, to find the date and time that is 2.5 days from today, you can use:

# get date one week from now
$fld = $conn->OffsetDate(7); // returns "(trunc(sysdate)+7")

# get date and time that is 60 hours from current date and time
$fld = $conn->OffsetDate(2.5, $conn->sysTimeStamp);	// returns "(sysdate+2.5)"

$conn->Execute("UPDATE TABLE SET dodate=$fld WHERE ID=$id");

This function is available for mysql, mssql, oracle, oci8 and postgresql drivers since 2.13. It might work with other drivers provided they allow performing numeric day arithmetic on dates.

 Y: 4-digit Year
 Q: Quarter (1-4)
 M: Month (01-12)
 D: Day (01-31)

 $sqlfn = $db->SQLDate('Y-\QQ','postdate'); # get sql that formats postdate to output 2002-Q1
 $sql = "SELECT $sqlfn,SUM(cogs) FROM table GROUP BY $sqlfn ORDER BY 1 desc";
 

$rs = $db->Execute($sql);
if ($rs) 
	while (!$rs->EOF) {
 		ProcessArray($rs->fields);	
		$rs->MoveNext();
	} 

AbsolutePage($page=-1)

Returns the current page. Requires PageExecute()/CachePageExecute() to be called. See Example 8.

Returns array containing current row, or false if EOF. FetchRow( ) internally moves to the next record after returning the current row.

Warning: Do not mix using FetchRow() with MoveNext().

Usage:

$rs = $db->Execute($sql);
if ($rs)
	while ($arr = $rs->FetchRow()) {
	     # process $arr	
	}

FetchInto(&$array)

Sets $array to the current row. Returns PEAR_Error object if EOF, 1 if ok (DB_OK constant). If PEAR is undefined, false is returned when EOF. FetchInto( ) internally moves to the next record after returning the current row.

FetchRow() is easier to use. See above.

$rs = $db->Execute('select firstname,lastname from table');
if ($rs) {
	while ($o = $rs->FetchNextObject()) {
		print "$o->FIRSTNAME, $o->LASTNAME<BR>";
	}
}

<?
include('tohtml.inc.php'); # load code common to ADOdb 
include('adodb.inc.php'); # load code common to ADOdb 
$conn = &ADONewConnection('mysql');   # create a connection 
$conn->PConnect('localhost','userid','','agora');# connect to MySQL, agora db
$sql = 'select CustomerName, CustomerID from customers'; 
$rs   = $conn->Execute($sql); 
rs2html($rs,'border=2 cellpadding=3',array('Customer Name','Customer ID'));
?>

Change Log

2.50, 14 Nov 2002

Added transOff and transCnt properties for disabling (transOff = true) and tracking transaction status (transCnt>0).

Added inputarray handling into _adodb_pageexecute_all_rows - "Ross Smith" RossSmith#bnw.com.

Fixed postgresql inconsistencies in date handling.

Added support for mssql_fetch_assoc.

Fixed $ADODB_FETCH_MODE bug in odbc MetaTables() and MetaPrimaryKeys().

Accidentally declared UnixDate() twice, making adodb incompatible with php 4.3.0. Fixed.

Fixed pager problems with some databases that returned -1 for _currentRow on MoveLast() by switching to MoveNext() in adodb-lib.inc.php.

Also fixed uninited $discard in adodb-lib.inc.php.

2.43, 25 Oct 2002

Added support for NConnect() for oracle OCINLogin.

Fixed NumCols() bug.

Changed session handler to use Replace() on write.

Fixed oci8 SelectLimit aggregate function bug again.

Rewrote pivoting code.

2.42, 4 Oct 2002

Fixed ibase_fetch() problem with nulls. Also interbase now does automatic blob decoding, and is backward compatible. Suggested by Heinz Hombergs heinz#hhombergs.de.

Fixed postgresql MoveNext() problems when called repeatedly after EOF. Also suggested by Heinz Hombergs.

PageExecute() does not rewrite queries if SELECT DISTINCT is used. Requested by hans#velum.net

Added additional fixes to oci8 SelectLimit handling with aggregate functions - thx to Christian Bugge for reporting the problem.

2.41, 2 Oct 2002

Fixed ADODB_COUNTRECS bug in odbc. Thx to Joshua Zoshi jzoshi#hotmail.com.

Increased buffers for adodb-csvlib.inc.php for extremely long sql from 8192 to 32000.

Revised pivottable.inc.php code. Added better support for aggregate fields.

Fixed mysql text/blob types problem in MetaTypes base class - thx to horacio degiorgi.

Added SQLDate($fmt,$date) function, which allows an sql date format string to be generated - useful for group by's.

Fixed bug in oci8 SelectLimit when offset>100.

2.40 4 Sept 2002

Added new NLS_DATE_FORMAT property to oci8. Suggested by Laurent NAVARRO ln#altidev.com

Now use bind parameters in oci8 selectlimit for better performance.

Fixed interbase replaceQuote for dialect != 1. Thx to "BEGUIN Pierre-Henri - INFOCOB" phb#infocob.com.

Added white-space check to QA.

Changed unixtimestamp to support fractional seconds (we always round down/floor the seconds). Thanks to beezly#beezly.org.uk.

Now you can set the trigger_error type your own user-defined type in adodb-errorhandler.inc.php. Suggested by Claudio Bustos clbustos#entelchile.net.

Added recordset filters with rsfilter.inc.php.

$conn->_rs2rs does not create a new recordset when it detects it is of type array. Some trickery there as there seems to be a bug in Zend Engine

Added render_pagelinks to adodb-pager.inc.php. Code by "Pablo Costa" pablo#cbsp.com.br.

MetaType() speedup in adodb.inc.php by using hashing instead of switch. Best performance if constant arrays are supported, as they are in PHP5.

adodb-session.php now updates only the expiry date if the crc32 check indicates that the data has not been modified.

2.31 20 Aug 2002

Made changes to pivottable.inc.php due to daniel lucuzaeu's suggestions (we sum the pivottable column if desired).

Fixed ErrorNo() in postgres so it does not depend on _errorMsg property.

Robert Tuttle added support for oracle cursors. See ExecuteCursor().

Fixed Replace() so it works with mysql when updating record where data has not changed. Reported by Cal Evans (cal#calevans.com).

2.30 1 Aug 2002

Added pivottable.inc.php. Thanks to daniel.lucazeau#ajornet.com for the original concept.

Added ADOConnection::outp($msg,$newline) to output error and debugging messages. Now you can override this using the ADODB_OUTP constant and use your own output handler.

Changed == to === for 'null' comparison. Reported by ericquil#yahoo.com

Fixed mssql SelectLimit( ) bug when distinct used.

2.30 1 Aug 2002

New GetCol() and CacheGetCol() from ross#bnw.com that returns the first field as a 1 dim array.

We have an empty recordset, but RecordCount() could return -1. Fixed. Reported by "Jonathan Polansky" jonathan#polansky.com.

We now check for session variable changes using strlen($sessval).crc32($sessval). Formerly we only used crc32().

Informix SelectLimit() problem with $ADODB_COUNTRECS fixed.

Fixed informix SELECT FIRST x DISTINCT, and not SELECT DISTINCT FIRST x - reported by F Riosa

Now default adodb error handlers ignores error if @ used.

If you set $conn->autoRollback=true, we auto-rollback persistent connections for odbc, mysql, oci8, mssql. Default for autoRollback is false. No need to do so for postgres. As interbase requires a transaction id (what a flawed api), we don't do it for interbase.

Changed PageExecute() to use non-greedy preg_match when searching for "FROM" keyword.

2.20 9 July 2002

Added CacheGetOne($secs2cache,$sql), CacheGetRow($secs2cache,$sql), CacheGetAll($secs2cache,$sql).

Added $conn->OffsetDate($dayFraction,$date=false) to generate sql that calcs date offsets. Useful for scheduling appointments.

Added connection properties: leftOuter, rightOuter that hold left and right outer join operators.

Added connection property: ansiOuter to indicate whether ansi outer joins supported.

New driver mssqlpo, the portable mssql driver, which converts string concat operator from || to +.

Fixed ms access bug - SelectLimit() did not support ties - fixed.

Karsten Kraus (Karsten.Kraus#web.de), contributed error-handling code to ADONewConnection. Unfortunately due to backward compat problems, had to rollback most of the changes.

Added new parameter to GetAssoc() to allow returning an array of key-value pairs, ignoring any additional columns in the recordset. Off by default.

Corrected mssql $conn->sysDate to return only date using convert().

CacheExecute() improved debugging output.

Changed rs2html() so newlines are converted to BR tags. Also optimized rs2html() based on feedback by "Jerry Workman" jerry#mtncad.com.

Added support for Replace() with Interbase, using DELETE and INSERT.

Some minor optimizations (mostly removing & references when passing arrays).

Changed GenID() to allows id's larger than the size of an integer.

Added force_session property to oci8 for better updateblob() support.

Fixed PageExecute() which did not work properly with sql containing GROUP BY.

2.12 12 June 2002

Added toexport.inc.php to export recordsets in CSV and tab-delimited format.

CachePageExecute() does not work - fixed - thx John Huong.

Interbase aliases not set properly in FetchField() - fixed. Thx Stefan Goethals.

Added cache property to adodb pager class. The number of secs to cache recordsets.

SQL rewriting bug in pageexecute() due to skipping of newlines due to missing /s modifier. Fixed.

Max size of cached recordset due to a bug was 256000 bytes. Fixed.

Speedup of 1st invocation of CacheExecute() by tuning code.

We compare $rewritesql with $sql in pageexecute code in case of rewrite failure.

2.11 7 June 2002

Fixed PageExecute() rewrite sql problem - COUNT(*) and ORDER BY don't go together with mssql, access and postgres. Thx to Alexander Zhukov alex#unipack.ru

DB2 support for CHARACTER type added - thx John Huong huongch#bigfoot.com

For ado, $argProvider not properly checked. Fixed - kalimero#ngi.it

Added $conn->Replace() function for update with automatic insert if the record does not exist. Supported by all databases except interbase.

2.10 4 June 2002

Added uniqueSort property to indicate mssql ORDER BY cols must be unique.

Optimized session handler by crc32 the data. We only write if session data has changed.

adodb_sess_read in adodb-session.php now returns ''correctly - thanks to Jorma Tuomainen, webmaster#wizactive.com

Mssql driver did not throw EXECUTE errors correctly because ErrorMsg() and ErrorNo() called in wrong order. Pointed out by Alexios Fakos. Fixed.

Changed ado to use client cursors. This fixes BeginTran() problems with ado.

Added handling of timestamp type in ado.

Added to ado_mssql support for insert_id() and affected_rows().

Added support for mssql.datetimeconvert=0, available since php 4.2.0.

Made UnixDate() less strict, so that the time is ignored if present.

Changed quote() so that it checks for magic_quotes_gpc.

Changed maxblobsize for odbc to default to 64000.

2.00 13 May 2002

Added drivers informix72 for pre-7.3 versions, and oci805 for oracle 8.0.5, and postgres64 for postgresql 6.4 and earlier. The postgres and postgres7 drivers are now identical.

Interbase now partially supports ADODB_FETCH_BOTH, by defaulting to ASSOC mode.

Proper support for blobs in mssql. Also revised blob support code is base class. Now UpdateBlobFile() calls UpdateBlob() for consistency.

Added support for changed odbc_fetch_into api in php 4.2.0 with $conn->_has_stupid_odbc_fetch_api_change.

Fixed spelling of tablock locking hint in GenID( ) for mssql.

Added RowLock( ) to several databases, including oci8, informix, sybase, etc. Fixed where error in mssql RowLock().

Added sysDate and sysTimeStamp properties to most database drivers. These are the sql functions/constants for that database that return the current date and current timestamp, and are useful for portable inserts and updates.

Support for RecordCount() caused date handling in sybase and mssql to break. Fixed, thanks to Toni Tunkkari, by creating derived classes for ADORecordSet_array for both databases. Generalized using arrayClass property. Also to support RecordCount(), changed metatype handling for ado drivers. Now the type returned in FetchField is no longer a number, but the 1-char data type returned by MetaType. At the same time, fixed a lot of date handling. Now mssql support dmy and mdy date formats. Also speedups in sybase and mssql with preg_match and ^ in date/timestamp handling. Added support in sybase and mssql for 24 hour clock in timestamps (no AM/PM).

Extensive revisions to informix driver - thanks to Samuel CARRIERE samuel_carriere#hotmail.com

Added $ok parameter to CommitTrans($ok) for easy rollbacks.

Fixed odbc MetaColumns and MetaTables to save and restore $ADODB_FETCH_MODE.

Some odbc drivers did not call the base connection class constructor. Fixed.

Fixed regex for GetUpdateSQL() and GetInsertSQL() to support more legal character combinations.

1.99 21 April 2002

Added emulated RecordCount() to all database drivers if $ADODB_COUNTRECS = true (which it is by default). Inspired by Cristiano Duarte (cunha17#uol.com.br).

Unified stored procedure support for mssql and oci8. Parameter() and PrepareSP() functions implemented.

Added support for SELECT FIRST in informix, modified hasTop property to support this.

Changed csv driver to handle updates/deletes/inserts properly (when Execute() returns true). Bind params also work now, and raiseErrorFn with csv driver. Added csv driver to QA process.

Better error checking in oci8 UpdateBlob() and UpdateBlobFile().

Added TIME type to MySQL - patch by Manfred h9125297#zechine.wu-wien.ac.at

Prepare/Execute implemented for Interbase/Firebird

Changed some regular expressions to be anchored by /^ $/ for speed.

Added UnixTimeStamp() and UnixDate() to ADOConnection(). Now these functions are in both ADOConnection and ADORecordSet classes.

Empty recordsets were not cached - fixed.

Thanks to Gaetano Giunta (g.giunta#libero.it) for the oci8 code review. We didn't agree on everything, but i hoped we agreed to disagree!

1.90 6 April 2002

Now all database drivers support fetch modes ADODB_FETCH_NUM and ADODB_FETCH_ASSOC, though still not fully tested. Eg. Frontbase, Sybase, Informix.

NextRecordSet() support for mssql. Contributed by "Sven Axelsson" sven.axelsson#bokochwebb.se

Added blob support for SQL Anywhere. Contributed by Wade Johnson wade#wadejohnson.de

Fixed some security loopholes in server.php. Server.php also supports fetch mode.

Generalized GenID() to support odbc and mssql drivers. Mssql no longer generates GUID's.

Experimental RowLock($table,$where) for mssql.

Properly implemented Prepare() in oci8 and ODBC.

Added Bind() support to oci8 to support Prepare().

Improved error handler. Catches CacheExecute() and GenID() errors now.

Now if you are running php from the command line, debugging messages do not output html formating. Not 100% complete, but getting there.

1.81 22 March 2002

Restored default $ADODB_FETCH_MODE = ADODB_FETCH_DEFAULT for backward compatibility.

SelectLimit for oci8 improved - Our FIRST_ROWS optimization now does not overwrite existing hint.

New Sybase SQL Anywhere driver. Contributed by Wade Johnson wade#wadejohnson.de

1.80 15 March 2002

Redesigned directory structure of ADOdb files. Added new driver directory where all database drivers reside.

Changed caching algorithm to create subdirectories. Now we scale better.

Informix driver now supports insert_id(). Contribution by "Andrea Pinnisi" pinnisi#sysnet.it

Added experimental ISO date and FetchField support for informix.

Fixed a quoting bug in Execute() with bind parameters, causing problems with blobs.

Mssql driver speedup by 10-15%.

Now in CacheExecute($secs2cache,$sql,...), $secs2cache is optional. If missing, it will take the value defined in $connection->cacheSecs (default is 3600 seconds). Note that CacheSelectLimit(), the secs2cache is still compulsory - sigh.

Sybase SQL Anywhere driver (using ODBC) contributed by Wade Johnson wade#wadejohnson.de

1.72 8 March 2002

Added @ when returning Fields() to prevent spurious error - "Michael William Miller" mille562#pilot.msu.edu

MetaDatabases() for postgres contributed by Phil pamelant#nerim.net

Mitchell T. Young (mitch#youngfamily.org) contributed informix driver.

Fixed rs2html() problem. I cannot reproduce, so probably a problem with pre PHP 4.1.0 versions, when supporting new ADODB_FETCH_MODEs.

Mattia Rossi (mattia#technologist.com) contributed BlobDecode() and UpdateBlobFile() for postgresql using the postgres specific pg_lo_import()/pg_lo_open() - i don't use them but hopefully others will find this useful. See this posting for an example of usage.

Added UpdateBlobFile() for uploading files to a database.

Made UpdateBlob() compatible with oci8po driver.

Added noNullStrings support to oci8 driver. Oracle changes all ' ' strings to nulls, so you need to set strings to ' ' to prevent the nullifying of strings. $conn->noNullStrings = true; will do this for you automatically. This is useful when you define a char column as NOT NULL.

Fixed UnixTimeStamp() bug - wasn't setting minutes and seconds properly. Patch from Agusti Fita i Borrell agusti#anglatecnic.com.

Toni Tunkkari added patch for sybase dates. Problem with spaces in day part of date fixed.

1.71 18 Jan 2002

Sequence start id support. Now $conn->Gen_ID('seqname', 50) to start sequence from 50.

CSV driver fix for selectlimit, from Andreas - akaiser#vocote.de.

Gam3r spotted that a global variable was undefined in the session handler.

Mssql date regex had error. Fixed - reported by Minh Hoang vb_user#yahoo.com.

DBTimeStamp() and DBDate() now accept iso dates and unix timestamps. This means that the PostgreSQL handling of dates in GetInsertSQL() and GetUpdateSQL() can be removed. Also if these functions are passed '' or null or false, we return a SQL null.

GetInsertSQL() and GetUpdateSQL() now accept a new parameter, $magicq to indicate whether quotes should be inserted based on magic quote settings - suggested by dj#4ict.com.

Reformated docs slightly based on suggestions by Chris Small.

1.65 28 Dec 2001

Fixed borland_ibase class naming bug.

Now instead of using $rs->fields[0] internally, we use reset($rs->fields) so that we are compatible with ADODB_FETCH_ASSOC mode. Reported by Nico S.

Changed recordset constructor and _initrs() for oci8 so that it returns the field definitions even if no rows in the recordset. Reported by Rick Hickerson (rhickers#mv.mv.com).

Improved support for postgresql in GetInsertSQL and GetUpdateSQL by "mike" mike#partner2partner.com and "Ryan Bailey" rebel#windriders.com

1.64 20 Dec 2001

Danny Milosavljevic <danny.milo#gmx.net> added some patches for MySQL error handling and displaying default values.

Fixed some ADODB_FETCH_BOTH inconsistencies in odbc and interbase.

Added more tests to test suite to cover ADODB_FETCH_* and ADODB_ERROR_HANDLER.

Added firebird (ibase) driver

Added borland_ibase driver for interbase 6.5

1.63 13 Dec 2001

1.62 11 Dec 2001

Major speedup of ADOdb for low-end web sites by reducing the php code loading and compiling cycle. We conditionally compile not so common functions. Moved csv code to adodb-csvlib.inc.php to reduce adodb.inc.php parsing. This file is loaded only when the csv/proxy driver is used, or CacheExecute() is run. Also moved PageExecute(), GetSelectSQL() and GetUpdateSQL() core code to adodb-lib.inc.php. This reduced the 70K main adodb.inc.php file to 55K, and since at least 20K of the file is comments, we have reduced 50K of code in adodb.inc.php to 35K. There should be 35% reduction in memory and thus 35% speedup in compiling the php code for the main adodb.inc.php file.

Highly tuned SelectLimit() for oci8 for massive speed improvements on large files. Selecting 20 rows starting from the 20,000th row of a table is now 7 times faster. Thx to Tomas V V Cox.

Allow . and # in table definitions in GetInsertSQL and GetUpdateSQL. See ADODB_TABLE_REGEX constant. Thx to Ari Kuorikoski.

Added ADODB_PREFETCH_ROWS constant, defaulting to 10. This determines the number of records to prefetch in a SELECT statement. Only used by oci8.

Added high portability Oracle class called oci8po. This uses ? for bind variables, and lower cases column names.

Now all database drivers support $ADODB_FETCH_MODE, including interbase, ado, and odbc: ADODB_FETCH_NUM and ADODB_FETCH_ASSOC. ADODB_FETCH_BOTH is not fully implemented for all database drivers.

1.61 Nov 2001

Added PO_RecordCount() and PO_Insert_ID(). PO stands for portable. Pablo Roca [pabloroca#mvps.org]

GenID now returns 0 if not available. Safer is that you should check $conn->hasGenID for availability.

M'soft ADO we now correctly close recordset in _close() peterd#telephonetics.co.uk

MSSQL now supports GenID(). It generates a 16-byte GUID from mssql newid() function.

Changed ereg_replace to preg_replace in SelectLimit. This is a fix for mssql. Ereg doesn't support t or n! Reported by marino Carlos xaplo#postnuke-espanol.org

Added $recordset->connection. This is the ADOConnection object for the recordset. Works with cached and normal recordsets. Surprisingly, this had no affect on performance!

1.54 15 Nov 2001

More speedups of SelectLimit() for DB2, Oci8, access, vfp, mssql.

1.53 7 Nov 2001

Tuned GetRowAssoc(false) in postgresql and mysql.

Stephen Van Dyke contributed ADOdb icon, accepted with some minor mods.

Enabled Affected_Rows() for postgresql

Speedup for Concat() using implode() - Benjamin Curtis ben_curtis#yahoo.com

Fixed some more bugs in PageExecute() to prevent infinite loops

1.52 5 Nov 2001

Added fixes for parsing [ and ] in GetUpdateSQL().

1.51 5 Nov 2001

Oci8 SelectLimit() speedup by using OCIFetch().

Oci8 was mistakenly reporting errors when $db->debug = true.

If a connection failed with ODBC, it was not correctly reported - fixed.

_connectionID was inited to -1, changed to false.

Added $rs->FetchRow(), to simplify API, ala PEAR DB

Added PEAR DB compat mode, which is still faster than PEAR! See adodb-pear.inc.php.

Removed postgres pconnect debugging statement.

1.50 31 Oct 2001

ADOdbConnection renamed to ADOConnection, and ADOdbFieldObject to ADOFieldObject.

PageExecute() now checks for empty $rs correctly, and the errors in the docs on this subject have been fixed.

odbc_error() does not return 6 digit error correctly at times. Implemented workaround.

Added ADORecordSet_empty class. This will speedup INSERTS/DELETES/UPDATES because the return object created is much smaller.

Added Prepare() to odbc, and oci8 (but doesn't work properly for oci8 still).

Made pgsql a synonym for postgre7, and changed SELECT LIMIT to use OFFSET for compat with postgres 7.2.

Revised adodb-cryptsession.php thanks to Ari.

Set resources to false on _close, to force freeing of resources.

Added adodb-errorhandler.inc.php, adodb-errorpear.inc.php and raiseErrorFn on Freek's urging.

GetRowAssoc($toUpper=true): $toUpper added as default.

Errors when connecting to a database were not captured formerly. Now we do it correctly.

1.40 19 September 2001

PageExecute() to implement page scrolling added. Code and idea by Iván Oliva.

Some minor postgresql fixes.

Added sequence support using GenID() for postgresql, oci8, mysql, interbase.

Added UpdateBlob support for interbase (untested).

Added encrypted sessions (see adodb-cryptsession.php). By Ari Kuorikoski <kuoriari#finebyte.com>

1.31 21 August 2001

Many bug fixes thanks to "GaM3R (Cameron)" <gamr#outworld.cx>. Some session changes due to Gam3r.

Fixed qstr() to quote also.

rs2html() now pretty printed.

Jonathan Younger jyounger#unilab.com contributed the great idea GetUpdateSQL() and GetInsertSQL() which generates SQL to update and insert into a table from a recordset. Modify the recordset fields array, then can this function to generate the SQL (the SQL is not executed).

"Nicola Fankhauser" <nicola.fankhauser#couniq.com> found some bugs in date handling for mssql.

Added minimal Oracle support for LOBs. Still under development.

PostgreSQL properly closes recordsets now. Reported by several people.

Added UpdateBlob() for Oracle. A hack to make it easier to save blobs.

Oracle timestamps did not display properly. Fixed.

1.20 6 June 2001

Now Oracle can connect using tnsnames.ora or server and service name

Extensive Oci8 speed optimizations. Oci8 code revised to support variable binding, and /*+ FIRST_ROWS */ hint.

Worked around some 4.0.6 bugs in odbc_fetch_into().

Paolo S. Asioli paolo.asioli#libero.it suggested GetRowAssoc().

Escape quotes for oracle wrongly set to '. Now '' is used.

Variable binding now works in ODBC also.

Jumped to version 1.20 because I don't like 13 :-)

1.12 6 June 2001

Changed $ADODB_DIR to ADODB_DIR constant to plug a security loophole.

Changed _close() to close persistent connections also. Prevents connection leaks.

Major revision of oracle and oci8 drivers. Added OCI_RETURN_NULLS and OCI_RETURN_LOBS to OCIFetchInto(). BLOB, CLOB and VARCHAR2 recognition in MetaType() improved. MetaColumns() returns columns in correct sort order.

Interbase timestamp input format was wrong. Fixed.

1.11 20 May 2001

Improved file locking for Windows.

Probabilistic flushing of cache to avoid avalanche updates when cache timeouts.

Cached recordset timestamp not saved in some scenarios. Fixed.

1.10 19 May 2001

Added caching. CacheExecute() and CacheSelectLimit().

Added csv driver. See http://php.weblogs.com/ADODB_csv.

Fixed SelectLimit(), SELECT TOP not working under certain circumstances.

Added better Frontbase support of MetaTypes() by Frank M. Kromann.

1.01 24 April 2001

Fixed SelectLimit bug. not quoted properly.

SelectLimit: SELECT TOP -1 * FROM TABLE not support by Microsoft. Fixed.

GetMenu improved by glen.davies#cce.ac.nz to support multiple hilited items

FetchNextObject() did not work with only 1 record returned. Fixed bug reported by $tim#orotech.net

Fixed mysql field max_length problem. Fix suggested by Jim Nicholson (jnich#att.com)

1.00 16 April 2001

Given some brilliant suggestions on how to simplify ADOdb by akul. You no longer need to setup $ADODB_DIR yourself, and ADOLoadCode() is automatically called by ADONewConnection(), simplifying the startup code.

FetchNextObject() added. Suggested by Jakub Marecek. This makes FetchObject() obsolete, as this is more flexible and powerful.

Misc fixes to SelectLimit() to support Access (top must follow distinct) and Fields() in the array recordset. From Reinhard Balling.

0.96 27 Mar 2001

ADOConnection Close() did not return a value correctly. Thanks to akul#otamedia.com.

When the horrible magic_quotes is enabled, back-slash () is changed to double-backslash (\). This doesn't make sense for Microsoft/Sybase databases. We fix this in qstr().

Fixed Sybase date problem in UnixDate() thanks to Toni Tunkkari. Also fixed MSSQL problem in UnixDate() - thanks to milhouse31#hotmail.com.

MoveNext() moved to leaf classes for speed in MySQL/PostgreSQL. 10-15% speedup.

Added null handling in bindInputArray in Execute() -- Ron Baldwin suggestion.

Fixed some option tags. Thanks to john#jrmstudios.com.

0.95 13 Mar 2001

Added postgres7 database driver which supports LIMIT and other version 7 stuff in the future.

Added SelectLimit to ADOConnection to simulate PostgreSQL's "select * from table limit 10 offset 3". Added helper function GetArrayLimit() to ADORecordSet.

Fixed mysql metacolumns bug. Thanks to Freek Dijkstra (phpeverywhere#macfreek.com).

Also many PostgreSQL changes by Freek. He almost rewrote the whole PostgreSQL driver!

Added fix to input parameters in Execute for non-strings by Ron Baldwin.

Added new metatype, X for TeXt. Formerly, metatype B for Blob also included text fields. Now 'B' is for binary/image data. 'X' for textual data.

Fixed $this->GetArray() in GetRows().

Oracle and OCI8: 1st parameter is always blank -- now warns if it is filled.

Now hasLimit and hasTop added to indicate whether SELECT * FROM TABLE LIMIT 10 or SELECT TOP 10 * FROM TABLE are supported.

0.94 04 Feb 2001

Added ADORecordSet::GetRows() for compatibility with Microsoft ADO. Synonym for GetArray().

Added new metatype 'R' to represent autoincrement numbers.

Added ADORecordSet.FetchObject() to return a row as an object.

Finally got a Linux box to test PostgreSql. Many fixes.

Fixed copyright misspellings in 0.93.

Fixed mssql MetaColumns type bug.

Worked around odbc bug in PHP4 for sessions.

Fixed many documentation bugs (affected_rows, metadatabases, qstr).

Fixed MySQL timestamp format (removed comma).

Interbase driver did not call ibase_pconnect(). Fixed.

0.93 18 Jan 2002

Fixed GetMenu bug.

Simplified Interbase commit and rollback.

Default behaviour on closing a connection is now to rollback all active transactions.

Added field object handling for array recordset for future XML compatibility.

Added arr2html() to convert array to html table.

0.92 2 Jan 2002

Interbase Commit and Rollback should be working again.

Changed initialisation of ADORecordSet. This is internal and should not affect users. We are doing this to support cached recordsets in the future.

Implemented ADORecordSet_array class. This allows you to simulate a database recordset with an array.

Added UnixDate() and UnixTimeStamp() to ADORecordSet.

0.91 21 Dec 2000

Fixed ODBC so ErrorMsg() is working.

Worked around ADO unrecognised null (0x1) value problem in COM.

Added Sybase support for FetchField() type

Removed debugging code and unneeded html from various files

Changed to javadoc style comments to adodb.inc.php.

Added maxsql as synonym for mysqlt

Now ODBC downloads first 8K of blob by default

0.90 15 Nov 2000

Lots of testing of Microsoft ADO. Should be more stable now.

Added $ADODB_COUNTREC. Set to false for high speed selects.

Added Sybase support. Contributed by Toni Tunkkari (toni.tunkkari#finebyte.com). Bug in Sybase API: GetFields is unable to determine date types.

Changed behaviour of RecordSet.GetMenu() to support size parameter (listbox) properly.

Added emptyDate and emptyTimeStamp to RecordSet class that defines how to represent empty dates.

Added MetaColumns($table) that returns an array of ADOFieldObject's listing the columns of a table.

Added transaction support for PostgresSQL -- thanks to "Eric G. Werk" egw#netguide.dk.

Added adodb-session.php for session support.

0.80 30 Nov 2000

Added support for charSet for interbase. Implemented MetaTables for most databases. PostgreSQL more extensively tested.

0.71 22 Nov 2000

Switched from using require_once to include/include_once for backward compatability with PHP 4.02 and earlier.

0.70 15 Nov 2000

Calls by reference have been removed (call_time_pass_reference=Off) to ensure compatibility with future versions of PHP, except in Oracle 7 driver due to a bug in php_oracle.dll.

PostgreSQL database driver contributed by Alberto Cerezal (acerezalp#dbnet.es).

Oci8 driver for Oracle 8 contributed by George Fourlanos (fou#infomap.gr).

Added mysqlt database driver to support MySQL 3.23 which has transaction support.

Oracle default date format (DD-MON-YY) did not match ADOdb default date format (which is YYYY-MM-DD). Use ALTER SESSION to force the default date.

Error message checking is now included in test suite.

MoveNext() did not check EOF properly -- fixed.

0.60 Nov 8 2000

Fixed some constructor bugs in ODBC and ADO. Added ErrorNo function to ADOConnection class.

0.51 Oct 18 2000

Fixed some interbase bugs.

0.50 Oct 16 2000

Interbase commit/rollback changed to be compatible with PHP 4.03.

CommitTrans( ) will now return true if transactions not supported.

Conversely RollbackTrans( ) will return false if transactions not supported.

0.46 Oct 12

0.40 Sept 26

Many bug fixes

Now Code for BeginTrans, CommitTrans and RollbackTrans is working. So is the Affected_Rows and Insert_ID. Added above functions to test.php.

ADO type handling was busted in 0.30. Fixed.

Generalised Move( ) so it works will all databases, including ODBC.

0.30 Sept 18

Renamed ADOLoadDB to ADOLoadCode. This is clearer.

Added BeginTrans, CommitTrans and RollbackTrans functions.

Added Affected_Rows() and Insert_ID(), _affectedrows() and _insertID(), ListTables(), ListDatabases(), ListColumns().

Need to add New_ID() and hasInsertID and hasAffectedRows, autoCommit

0.20 Sept 12

Added support for Microsoft's ADO.

Added new field to ADORecordSet -- canSeek

Added new parameter to _fetch($ignore_fields = false). Setting to true will not update fields array for faster performance.

Added new field to ADORecordSet/ADOConnection -- dataProvider to indicate whether a class is derived from odbc or ado.

Changed class ODBCFieldObject to ADOFieldObject -- not documented currently.

Added benchmark.php and testdatabases.inc.php to the test suite.

Added to ADORecordSet FastForward( ) for future high speed scrolling. Not documented.

Realised that ADO's Move( ) uses relative positioning. ADOdb uses absolute.

0.10 Sept 9 2000

First release