- gettype: documentation ( source)
- ob_start: documentation ( source)
- ob_end_flush: documentation ( source)
- substr_replace: documentation ( source)
- ob_get_length: documentation ( source)
- set_exception_handler: documentation ( source)
- call_user_func: documentation ( source)
- ob_end_clean: documentation ( source)
- defined: documentation ( source)
- is_callable: documentation ( source)
- define: documentation ( source)