3v4l.org

run code in 300+ PHP versions simultaneously
<?php $base = '/some/dir'; $path = 'foo/bar'; $protect = 'for'; $p1 = $base.'/'.$path; $p2 = $base.'/'.$protect; $result = strcmp($p1,p2); echo "Result: ".$result; ?>
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 "p2" in /in/YueUQ:10 Stack trace: #0 {main} thrown in /in/YueUQ on line 10
Process exited with code 255.
Output for 7.3.30 - 7.3.33, 7.4.19 - 7.4.20, 7.4.23 - 7.4.33
Warning: Use of undefined constant p2 - assumed 'p2' (this will throw an Error in a future version of PHP) in /in/YueUQ on line 10 Result: -4243135
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.29, 7.4.0 - 7.4.16, 7.4.21 - 7.4.22
Warning: Use of undefined constant p2 - assumed 'p2' (this will throw an Error in a future version of PHP) in /in/YueUQ on line 10 Result: -65
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant p2 - assumed 'p2' in /in/YueUQ on line 10 Result: -65

preferences:
310.8 ms | 404 KiB | 465 Q