3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { public function __construct() { echo $$this; } } new Foo;
Output for 7.1.0 - 7.2.0
Recoverable fatal error: Object of class Foo could not be converted to string in /in/gjVgV on line 5
Process exited with code 255.
Output for 5.3.19 - 7.0.20
Catchable fatal error: Object of class Foo could not be converted to string in /in/gjVgV on line 5
Process exited with code 255.