3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { function __construct() { __debugInfo(); } } new a;
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 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: Call to undefined function __debugInfo() in /in/cfvgc:7 Stack trace: #0 /in/cfvgc(11): a->__construct() #1 {main} thrown in /in/cfvgc on line 7
Process exited with code 255.
Output for 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
Fatal error: Call to undefined function __debugInfo() in /in/cfvgc on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9

preferences:
294.82 ms | 401 KiB | 456 Q