PHP 8.4.0 RC2 available for testing

stream_supports_lock

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

stream_supports_lockTells whether the stream supports locking

Description

stream_supports_lock(resource $stream): bool

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

  • flock() - Portable advisory file locking

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romain dot ardiet at gmail dot com
9 years ago
This method returns TRUE on custom wrappers by default if you don't implement the stream_lock() method inside the wrapper : http://php.net/manual/en/streamwrapper.stream-lock.php
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