3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { public $a; public $b; public function __construct($a, $b) { $this->a = $a; $this->b = $b; } } // test only a $c = new C("foo", null); var_dump($c->a === "foo"); // test only b $c = new C(null, "foo"); var_dump($c->b === "foo"); ?>

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