3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { public $foo; public function &bar1() { return $this; } public function bar2($o) { $x = $this->bar1(); $x = $o; } } $a = new Foo; $a->foo = 1; $b = new Foo; $b->foo = 2; var_dump($a->foo, $b->foo); $a->bar2($b); var_dump($a->foo, $b->foo);
Output for 5.0.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
int(1) int(2) int(1) int(2)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/pCfqq on line 3
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_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/pCfqq on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/pCfqq on line 3
Process exited with code 255.