3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $test = "test"; public function test() { $this->test = $this; return $this->test; } public function test2() { echo "A"; } } $a = new A; $a->test()->test2();
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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
A

preferences:
183.94 ms | 404 KiB | 200 Q