3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = function (integer $bar = null ) { var_dump($bar); }; $foo(); $foo(null); $foo('foo'); $foo(100); $foo([100]);
based on r25qn
Output for 7.1.0 - 7.2.0
NULL NULL Fatal error: Uncaught TypeError: Argument 1 passed to {closure}() must be an instance of integer or null, string given, called in /in/6s0Ys on line 8 and defined in /in/6s0Ys:2 Stack trace: #0 /in/6s0Ys(8): {closure}('foo') #1 {main} thrown in /in/6s0Ys on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20
NULL NULL Fatal error: Uncaught TypeError: Argument 1 passed to {closure}() must be an instance of integer, string given, called in /in/6s0Ys on line 8 and defined in /in/6s0Ys:2 Stack trace: #0 /in/6s0Ys(8): {closure}('foo') #1 {main} thrown in /in/6s0Ys on line 2
Process exited with code 255.
Output for 5.4.0 - 5.6.28
NULL NULL Catchable fatal error: Argument 1 passed to {closure}() must be an instance of integer, string given, called in /in/6s0Ys on line 8 and defined in /in/6s0Ys on line 2
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/6s0Ys on line 10
Process exited with code 255.