stream_supports_lock
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
stream_supports_lock — Tells whether the stream supports locking
说明
Tells whether the stream supports locking through flock().
参数
stream-
The stream to check.
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
stream_supports_lock — Tells whether the stream supports locking
Tells whether the stream supports locking through flock().
streamThe stream to check.