3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A { function __construct($n) { $this->n = $n; } function init($n) {$this->b = new A ($n);} } $a = new A(109); $b = new A(21); $a->b =& $b; unset($b); $aa = clone $a; $aa->init(22); echo $a->b->n; echo $aa->b->n;
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2122
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_VARIABLE in /in/JODg2 on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_VARIABLE in /in/JODg2 on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/JODg2 on line 10
Process exited with code 255.