(PECL runkit:0.7-0.9)
runkit_function_rename — Change a function's name
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 the system-wide php.ini file.
Current function name
New function name
Devuelve TRUE si todo se llevó a cabo correctamente, FALSE en caso de fallo.