3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo md5(‘foo’).sha1('foo'); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "‘foo’" in /in/S2dU3:3 Stack trace: #0 {main} thrown in /in/S2dU3 on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant ‘foo’ - assumed '‘foo’' (this will throw an Error in a future version of PHP) in /in/S2dU3 on line 3 375858a0fdc51d21d1a57edf858a78bb0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant ‘foo’ - assumed '‘foo’' in /in/S2dU3 on line 3 375858a0fdc51d21d1a57edf858a78bb0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33

preferences:
210.2 ms | 404 KiB | 314 Q