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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [1=>'a', 2=>'b']; var_dump(array_map(function($k, $v) { return ['val' => $v, 'label' => $k]; }, $a));
Output for 7.1.0 - 7.2.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 1 passed and exactly 2 expected in /in/s4FWI:5 Stack trace: #0 [internal function]: {closure}('a') #1 /in/s4FWI(8): array_map(Object(Closure), Array) #2 {main} thrown in /in/s4FWI on line 5
Process exited with code 255.
Output for 5.4.0 - 7.0.20
Warning: Missing argument 2 for {closure}() in /in/s4FWI on line 5 Notice: Undefined variable: v in /in/s4FWI on line 7 Warning: Missing argument 2 for {closure}() in /in/s4FWI on line 5 Notice: Undefined variable: v in /in/s4FWI on line 7 array(2) { [1]=> array(2) { ["val"]=> NULL ["label"]=> string(1) "a" } [2]=> array(2) { ["val"]=> NULL ["label"]=> string(1) "b" } }
Output for 5.3.18 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/s4FWI on line 3
Process exited with code 255.