3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { protected $name = 'I am X.'; public function __toString() { return $this->name; } } class Y { public function write(string $classy) { return $classy; } } $x = new X(); $y = new Y(); var_export($y->write($x));
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
'I am X.'

preferences:
175.65 ms | 407 KiB | 5 Q