PHP与interbase的连接

I am trying to connect php with interbase. It seems php only works with firebird, instead of interbase. I already have a database , that is created in interbase, I just need connectivity with interbase, not firebird. When I am trying to connect it with interbase, it says .. invalid database. where as connection with firebird database is working fine. Using php 5.6, windows server, 64 bit architechture

There's a ton of helpful comments at the ibase_connect function page over at php.net, are you sure that you're following through and checking version numbers? It appears that you may need to perform a manual fix and set the dialect version of the connection, as follows:

ibase_connect ('localhost:/usr/db/db.gdb', 'SYSDBA', 'masterkey', 'ISO8859_1', '100', '1' ) ;

The last 1 as a parameter resets the dialect mode between the ibase_connect() and Interbase. You also should check and see if the version of PHP you're running is compatible with the version of Interbase you're running.