3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach (array(1, 2, 3, 4) as &$value) { $value = $value * 2; }];
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.30
Parse error: syntax error, unexpected '&' in /in/M5KuE on line 3
Process exited with code 255.
preferences:
188.22 ms | 1395 KiB | 67 Q