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Tells whether the stream supports locking.
Stream Functions
PHP Manual

stream_supports_lock

(PHP 5 >= 5.3.0)

stream_supports_lockTells whether the stream supports locking.

Description

bool stream_supports_lock ( resource $stream )

Tells whether the stream supports locking through flock().

Parameters

stream

The stream to check.

Return Values

Returns TRUE on success or FALSE on failure.

See Also


Stream Functions
PHP Manual