3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { function __construct() { $a =& $this; $a = new stdClass; var_dump($this->foo()); } function foo(){ return __METHOD__; } } var_dump(new a);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.2.18, 8.3.0 - 8.3.6
string(6) "a::foo" object(a)#1 (0) { }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
object(a)(0) { }

preferences:
232.71 ms | 402 KiB | 344 Q