ociinternaldebug Enables or disables internal debug output voidociinternaldebug intonoff ociinternaldebug enables internal debug output. Set onoff to 0 to turn debug output off, 1 to turn it on. This function was renamed to oci_internal_debug after PHP >= 5.0.0. For downward compatibility ociinternaldebug can also be used. This is deprecated, however.