3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class foo { public $bar = null; public function &getBar() { if ($this->value === null) { $this->bar[] = 'init'; } return $this->bar; } } $obj = new foo; $myValue = &$obj->getBar(); $myValue[] = 123; var_dump($obj->bar);
based on 3Cjm6
Output for 5.2.6 - 7.3.1
Notice: Undefined property: foo::$value in /in/vtt4e on line 8 array(2) { [0]=> string(4) "init" [1]=> int(123) }
Output for 5.0.0 - 5.2.5
Notice: Undefined property: foo::$value in /in/vtt4e on line 8 array(2) { [0]=> string(4) "init" [1]=> int(123) }
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/vtt4e on line 4
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/vtt4e on line 4
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/vtt4e on line 4
Process exited with code 255.