3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function test() : string { return 'test'; } } class Bar extends Foo { public function test(string $word = '') : string { return parent::test() . ' ' . $word; } } $bar = new Bar(); echo $bar->test('huya');
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
test huya

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115.22 ms | 406 KiB | 5 Q