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filter_id

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

filter_id — 返回与某个特定名称的过滤器相关联的id

说明

filter_id(string $name): int|false

参数

name

待获取的过滤器名称。

返回值

如果获取成功则返回过滤器 id，如果过滤器不存在则返回 false。

参见