3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = function (string $it) { var_dump($it); }; $a(null);
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Argument 1 passed to {closure}() must be of the type string, null given, called in /in/PT8Da on line 7 and defined in /in/PT8Da:3 Stack trace: #0 /in/PT8Da(7): {closure}(NULL) #1 {main} thrown in /in/PT8Da on line 3
Process exited with code 255.
Output for 5.3.19 - 5.6.28
Catchable fatal error: Argument 1 passed to {closure}() must be an instance of string, null given, called in /in/PT8Da on line 7 and defined in /in/PT8Da on line 3
Process exited with code 255.