3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $x = 3; } $foo = new Foo; $foobar = function ($y) { var_dump($this->x + $y); }; $foobar->call($foo, 2); // int(5)
Output for 7.0.0 - 7.0.33, 7.1.0 - 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 - 8.2.19, 8.3.0 - 8.3.7
int(5)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined method Closure::call() in /in/MM6g0 on line 9
Process exited with code 255.

preferences:
225.55 ms | 402 KiB | 332 Q