3v4l.org

run code in 300+ PHP versions simultaneously
<?php final class Foo { private $foo; public function __construct(string $foo) { $this->foo = $foo; } public function getFoo(): string { return $this->foo; } } $foo = new Foo('bar'); var_dump($foo->getFoo()); $foo->__construct('baz'); var_dump($foo->getFoo());
Output for 7.1.25 - 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 - 8.3.6
string(3) "bar" string(3) "baz"

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