3v4l.org

run code in 500+ PHP versions simultaneously
<?php namespace A; class SomeClass { public static function run(): void { function strlen(): int { return 1; } echo strlen(); } } SomeClass::run();
Output for 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
1

preferences:
41.23 ms | 745 KiB | 4 Q