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run code in 300+ PHP versions simultaneously
<?php //define('CACHE', '123'); class test { const C = CACHE; function __construct() { echo self::C; } } new test(); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught Error: Undefined constant "CACHE" in /in/aeSlJ:14 Stack trace: #0 {main} thrown in /in/aeSlJ on line 14
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 CACHE - assumed 'CACHE' (this will throw an Error in a future version of PHP) in /in/aeSlJ on line 14 CACHE
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
Notice: Use of undefined constant CACHE - assumed 'CACHE' in /in/aeSlJ on line 14 CACHE

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