help, read different versions of oracle db with php

[pdecaro]

Good evening everyone, I have concerning these facilities connected with a program php oracle db 2 different versions, one is oracle9, the other is 10 oracle, instantclient I downloaded allows me to read only 10 oracle, for Oracle Instead 9 requires a different istantclient, How can I fix this problem, oracle reading with different versions. Thanks in advance to all those who want to help me. thanks Paul