(PECL sync >= 1.0.0)
SyncMutex::unlock — Unlocks the mutex
Decreases the internal counter of a SyncMutex object. When the internal counter reaches zero, the actual lock on the object is released.
allExample #1 SyncMutex::unlock() example
<?php
$mutex = new SyncMutex("UniqueName");
$mutex->lock();
/* ... */
$mutex->unlock();
?>