I can not to connect with external Oracle data base. PHP has required packages included, tnsnames.ora is configured well (other applicationc are able to establish connection). But PHP seems to not see tnsnames.ora file (but it can read it and for example display on the WWW page).
It allways give message - "TNS could not resolve service name".
Is there any other place to configure PHP to let it use TNSNAMES.ORA?