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<?php $map = array(array('-1'=>0, '-10'=>0, '-100'=>0), array(array('-1'=>0, '-10'=>0, '-100'=>0))); array_walk_recursive($map, function($item, $key, $whatever){var_dump($item, $key, $whatever);if(is_array($item))ksort($item);}); print_r($map);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 2 passed and exactly 3 expected in /in/prXs0:4 Stack trace: #0 [internal function]: {closure}(0, -1) #1 /in/prXs0(4): array_walk_recursive(Array, Object(Closure)) #2 {main} thrown in /in/prXs0 on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20
Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-1) NULL Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-10) NULL Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-100) NULL Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-1) NULL Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-10) NULL Warning: Missing argument 3 for {closure}() in /in/prXs0 on line 4 Notice: Undefined variable: whatever in /in/prXs0 on line 4 int(0) int(-100) NULL Array ( [0] => Array ( [-1] => 0 [-10] => 0 [-100] => 0 ) [1] => Array ( [0] => Array ( [-1] => 0 [-10] => 0 [-100] => 0 ) ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/prXs0 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/prXs0 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/prXs0 on line 4
Process exited with code 255.
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