3v4l.org

run code in 300+ PHP versions simultaneously
<?php $this = true; $that = false; var_dump($this and $that); var_dump($this && $that);
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Fatal error: Cannot re-assign $this in /in/uA8el on line 2
Process exited with code 255.
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190.39 ms | 1395 KiB | 55 Q