stream_supports_lock Tells whether the stream supports locking.


stream_supports_lock

(PHP 5 >= 5.3.0)

stream_supports_lockTells whether the stream supports locking.

说明

bool stream_supports_lock ( resource $stream )

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


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