3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(array_map(function($x, $y) { return $x.$y; }, array(2=>'2', 1=>'1')));
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/QvORN:3 Stack trace: #0 [internal function]: {closure}('2') #1 /in/QvORN(3): array_map(Object(Closure), Array) #2 {main} thrown in /in/QvORN on line 3
Process exited with code 255.
Output for 5.3.0 - 7.0.14
Warning: Missing argument 2 for {closure}() in /in/QvORN on line 3 Notice: Undefined variable: y in /in/QvORN on line 3 Warning: Missing argument 2 for {closure}() in /in/QvORN on line 3 Notice: Undefined variable: y in /in/QvORN on line 3 array(2) { [2]=> string(1) "2" [1]=> string(1) "1" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/QvORN on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/QvORN on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/QvORN on line 3
Process exited with code 255.