3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { private const foo = 'bar'; public function __construct() { var_dump(self::foo === self:: foo); } } new X();
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
bool(true)

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76.05 ms | 406 KiB | 5 Q