3v4l.org

run code in 300+ PHP versions simultaneously
<?php $this = 'foo';
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.31, 7.1.0 - 7.1.20, 7.2.0 - 7.2.8
Fatal error: Cannot re-assign $this in /in/oo784 on line 3
Process exited with code 255.
preferences:
278.58 ms | 1396 KiB | 215 Q