3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = str_split('This is a string!'); $i = 0; array_map(function($val, $key) { return $key % 2 ? $val : null; }, $string);
based on RvkeS
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/v9ddU:6 Stack trace: #0 [internal function]: {closure}('T') #1 /in/v9ddU(8): array_map(Object(Closure), Array) #2 {main} thrown in /in/v9ddU on line 6
Process exited with code 255.
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.0.14
Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: Missing argument 2 for {closure}() in /in/v9ddU on line 6 Notice: Undefined variable: key in /in/v9ddU on line 7
Output for hhvm-3.10.0 - 3.12.0
Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7 Warning: __invoke() expects exactly 2 parameters, 1 given in /in/v9ddU on line 7 Notice: Undefined variable: key in /in/v9ddU on line 7
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/v9ddU on line 6
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/v9ddU on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/v9ddU on line 6
Process exited with code 255.