3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Will error on PHP <5.6 due to property declaration class Foo{ static $variable = array('func' => __CLASS__ . '::secondFunction'); public static function firstFunction(){ return "PHP 5.6!"; } public static function secondFunction(){ return "PHP 7!"; } } $variable = array('func' => 'firstFunction'); echo Foo::$variable['func']();
Output for 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
PHP 7!
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 PHP 7!
Output for 5.6.0 - 5.6.28
PHP 5.6!
Output for 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '.', expecting ')' in /in/WOuYR on line 7
Process exited with code 255.
preferences:
195.71 ms | 401 KiB | 255 Q