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run code in 300+ PHP versions simultaneously
<?php class Foo { const THING = 'infoo'; public function get() { var_dump(self::THING); } } class Bar extends Foo { const THING = 'inbar'; } (new Bar)->get();
Output for 5.6.0 - 5.6.23, 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 - 8.2.19, 8.3.0 - 8.3.7
string(5) "infoo"

preferences:
201.28 ms | 404 KiB | 215 Q