Php/docs/function.stream-supports-lock

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stream_supports_lock

(PHP 5 >= 5.3.0, PHP 7)

stream_supports_lockTells whether the stream supports locking


说明

stream_supports_lock ( resource $stream ) : bool

Tells whether the stream supports locking through flock().


参数

stream
The stream to check.


返回值

成功时返回 true, 或者在失败时返回 false


参见

  • flock() - 轻便的咨询文件锁定