Online PHP editor | refs for h1SVU

<?php class testStreamWrapper { function stream_lock($operation) { var_dump($operation); return true; } function stream_open($path, $mode, $options, $opened_path) { return true; } } stream_wrapper_register('test', 'TestStreamWrapper'); $fp = fopen('test://waa', 'w+'); flock($fp, LOCK_SH); flock($fp, LOCK_EX); flock($fp, LOCK_UN); flock($fp, LOCK_SH | LOCK_NB); flock($fp, LOCK_EX | LOCK_NB);