Введение
  
   Firebird/InterBase is a relational database offering many ANSI SQL-92 features
   that runs on Linux, Windows, and a variety of Unix platforms. Firebird/InterBase
   offers excellent concurrency, high performance, and powerful language
   support for stored procedures and triggers. It has been used in production
   systems, under a variety of names since 1981. 
  
  
   InterBase is the name of the closed-source variant of this RDBMS that
   was developed by Borland/Inprise. More information about InterBase is 
   available at » http://www.borland.com/interbase/.
  
  
   Firebird is a commercially independent project of C and C++ programmers,
   technical advisors and supporters developing and enhancing a multi-platform
   relational database management system based on the source code released by
   Inprise Corp (now known as Borland Software Corp) under the InterBase
   Public License v.1.0 on 25 July, 2000. More information about Firebird is 
   available at » http://www.firebirdsql.org/.
  
  Замечание: 
   
    This extension supports InterBase versions 5 and up and all versions of Firebird.
    Support for InterBase version 5.x will be dropped in PHP 5.
   
   
    This database uses a single quote (') character for escaping, a
    behavior similar to the Sybase database, add to your
    php.ini the following directive: