3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { protected $foo; public function getFoo() { return $this->foo(); } } class Bar extends Foo { public function __construct($foo) { $this->foo = $foo; } } $foo = new Foo(new stdClass()); $$bar = new Bar(new stdClass()); var_dump($foo, $bar);
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: bar in /in/uOd2t on line 22 Notice: Undefined variable: bar in /in/uOd2t on line 24 object(Foo)#1 (1) { ["foo":protected]=> NULL } NULL
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.4 - 5.2.17
Notice: Undefined variable: bar in /in/uOd2t on line 22 Notice: Undefined variable: bar in /in/uOd2t on line 24 object(Foo)#1 (1) { ["foo:protected"]=> NULL } NULL
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: bar in /in/uOd2t on line 22 Notice: Undefined variable: bar in /in/uOd2t on line 24 object(Foo)#1 (1) { ["foo:protected"]=> NULL } NULL
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/uOd2t on line 5
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/uOd2t on line 5
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/uOd2t on line 5
Process exited with code 255.