Change a function's name runkit_function_remove runkit_import runkit Functions PHP Manual runkit_function_rename (PECL runkit:0.7-0.9)runkit_function_rename — Change a function's name Description bool runkit_function_rename ( string $funcname , string $newname ) Note: By default, only userspace functions may be removed, renamed, or modified. In order to override internal functions, you must enable the runkit.internal_override setting in php.ini. Parameters funcname Current function name newname New function name Return Values Returns TRUE on success or FALSE on failure. See Also runkit_function_add() runkit_function_copy() runkit_function_redefine() runkit_function_remove() runkit_function_remove runkit_import runkit Functions PHP Manual