(PECL sync >= 1.0.0)
SyncMutex::unlock — Unlocks the mutex
$all = false): boolDecreases the internal counter of a SyncMutex object. When the internal counter reaches zero, the actual lock on the object is released.
allSpecifies whether or not to set the internal counter to zero and therefore release the lock.
成功した場合に true を、失敗した場合に false を返します。
例1 SyncMutex::unlock() example
<?php
$mutex = new SyncMutex("UniqueName");
$mutex->lock();
/* ... */
$mutex->unlock();
?>