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Original author(s)John Lim
Developer(s)Damien Regad, Mark Newnham
Stable release
5.20.16 / January 12, 2020 (2020-01-12)
Written inPHP
TypeDatabase abstraction layer
LicenseBSD or LGPL

ADOdb is a database abstraction library for PHP, originally based on the same concept as Microsoft's ActiveX Data Objects. It allows developers to write applications in a consistent way regardless of the underlying database system storing the information. The advantage is that the database system can be changed without re-writing every call to it in the application.


ADOdb supports the following databases: [1]

Legacy, unsupported or obsolete drivers may still be found in older releases of ADOdb.[2]

In addition to the Database Abstraction Layer, ADOdb includes the following features:

  • Schema management tools: a suite of tools to interrogate the attributes of tables, fields and indexes in databases as well as providing cross-database schema management including a full suite of XML based functions
  • Date and time library: provides a drop-in replacement for PHP date functions, but provide access to dates outside the normal range of dates supported by normal PHP functions
  • Session management tools: allows storing session data in a database table or as encrypted data


  1. ^ "ADOdb supported databases". ADOdb wiki. Retrieved 13 January 2020.
  2. ^ "Supported Databases [ADOdb]". Retrieved 2020-03-22.

External links[edit]