3v4l.org

run code in 300+ PHP versions simultaneously
<?php class PushAndPull() { $queue=array(); function push($push) { array_push($this->$queue,$push); } function pull() { return array_shift($this->$queue); } } $obj = new PushAndPull(); //$obj->$push=1; $obj->push(1); foreach($queue as $value) echo $value; ?>
Output for 5.3.0 - 5.3.21, 5.4.0 - 5.4.11
Parse error: syntax error, unexpected '(', expecting '{' in /in/cfPpo on line 2
Process exited with code 255.

preferences:
175.86 ms | 1387 KiB | 41 Q