(PECL sync >= 1.0.0)
SyncReaderWriter::writeunlock — Releases a write lock
この関数にはパラメータはありません。
例1 SyncReaderWriter::writeunlock() example
<?php
$readwrite = new SyncReaderWriter("FileCacheLock");
$readwrite->writelock();
/* ... */
$readwrite->writeunlock();
?>