filter_id

(PHP 5 >= 5.2.0, PECL filter:0.11.0)

filter_id — Returns the filter ID belonging to a named filter

int filter_id ( string $filtername )

ID of a filter on success or NULL if filter doesn't exist.


	PHP5中文手册 filter_has_var filter_input_array Filter PHP Manual filter_id (PHP 5 >= 5.2.0, PECL filter:0.11.0) filter_id — Returns the filter ID belonging to a named filter 说明 int filter_id ( string `$filtername` ) 参数 `filtername` Name of a filter to get. 返回值 ID of a filter on success or `NULL` if filter doesn't exist. 参见 filter_list() filter_has_var filter_input_array Filter PHP Manual