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run code in 300+ PHP versions simultaneously
<?php define (“MYCONSTANT”,150); define (“MYCONSTANT”,160); echo MYCONSTANT; $n = $i = 5; while ($i--) echo str_repeat(' ', $i).str_repeat('* ', $n - $i)."\n"; ?>
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 "“MYCONSTANT”" in /in/pBjv0:2 Stack trace: #0 {main} thrown in /in/pBjv0 on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant “MYCONSTANT” - assumed '“MYCONSTANT”' (this will throw an Error in a future version of PHP) in /in/pBjv0 on line 2 Warning: Use of undefined constant MYCONSTANT - assumed 'MYCONSTANT' (this will throw an Error in a future version of PHP) in /in/pBjv0 on line 5 MYCONSTANT * * * * * * * * * * * * * * *
Output for 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 “MYCONSTANT” - assumed '“MYCONSTANT”' in /in/pBjv0 on line 2 Notice: Use of undefined constant MYCONSTANT - assumed 'MYCONSTANT' in /in/pBjv0 on line 5 MYCONSTANT * * * * * * * * * * * * * * *

preferences:
294.7 ms | 403 KiB | 376 Q