|Original author(s)||John Lim|
|Developer(s)||Damien Regad, Mark Newnham|
5.20.16 / January 12, 2020
|Type||Database abstraction layer|
|License||BSD 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: 
- IBM DB2
- Lightweight Directory Access Protocol (LDAP)
- Microsoft Access
- Microsoft SQL Server
- Oracle database
- PHP Data Objects (PDO)
- generic ODBC
Legacy, Unsupported or obsolete drivers may still be found in older releases of ADOdb.
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
- "ADOdb supported databases". ADOdb wiki. Retrieved 13 January 2020.