(PECL sync >= 1.0.0)
SyncReaderWriter::readlock — Waits for a read lock
public SyncReaderWriter::readlock ([ int $wait = -1 ] ) : bool
Obtains a read lock on a SyncReaderWriter object.
The number of milliseconds to wait for a lock. A value of -1 is infinite.
A boolean of TRUE if the lock was obtained, FALSE otherwise.
Example #1 SyncReaderWriter::readlock() example
<?php $readwrite = new SyncReaderWriter("FileCacheLock"); $readwrite->readlock(); /* ... */ $readwrite->readunlock(); ?>
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.