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PHP Compatibility Status

Should you discover any PHP compatibility issue in ADOdb, kindly report it in our tracker.

Corrections are published as Hotfix releases1), so please make that sure the problem you're facing still exists in the most recent version, including unreleased fixes in the hotfix/x.xx branch, before submitting a new issue.


PHP 8.0 is fully supported in ADOdb 5.20.20 and later. All reported issues have been fixed.

PHP 8.1 is supported since AODdb 5.22.4. Most of the reported compatibility issues have been fixed.

PHP 8.2 has been released on 08-Dec-2022. See the list of known compatibility issues. The upcoming 5.22.5 release should include fixes for these.


PHP 7 is fully supported since ADOdb 5.20.12 release.

All the reported issues have been fixed.

Legacy ADOdb Versions Support

Please note that there are no plans to fix PHP compatibility issues in ADOdb Legacy versions (5.20 and older).

Upgrading From Earlier Releases

Users have reported that upgrading from releases 5.00 (released in 2007) and higher have been reasonably easy, but that earlier versions may require substantial adjustments, due to design considerations in ADOdb version 4. If you need guidance, use any of the support methods listed on the main page.

Moving From Custom Releases

In order to migrate their products from custom older versions of ADOdb back to the core product and take advantage of the active development of the product, as well as compatibility with PHP 7 and later, a number of users have submitted their custom functionality to be integrated into core. If you are in the same situation, contact us about having your feature added.

Package Testing Status

Heavy use drivers are the tier 1 drivers, plus their PDO variants:

Core database MethodsTesting complete on heavy use drivers, others are as reported
Data DictionaryTesting complete on heavy use drivers, others are as reported
AXMLSTesting in progress on heavy use drivers
Date/Time LibraryNot Yet Tested
Performance MonitoringTesting complete on supported drivers, IBM DB2 currently not supported
ADOdb Active RecordTesting complete on heavy use drivers, others are as reported
Session ManagementTesting complete, PDO now supported
Drop-in replacements to earlier versions of the same release number
v5/php_compatibility_status.txt · Last modified: 2023/01/25 11:29 by dregad