oci_client_version Returns the Oracle client library version &reftitle.description; stringoci_client_version Returns a string containing the version number of the Oracle C client library that PHP is linked with. &reftitle.parameters; None &reftitle.returnvalues; Returns the version number as a &string;. &reftitle.examples; <function>oci_client_version</function> example <![CDATA[ ]]> &reftitle.notes; Oracle libraries before 10gR2 do not have the underlying functionality to get the client library version number. The string "Unknown" will be returned in this case. &reftitle.seealso; oci_server_version