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<?php $arr = array( Array('weight' => '317.51474856007','reps' => '10'), Array('weight' => 50,'reps' => 10), Array('reps' => 10), Array('reps' => 10) ); //$count = array(); array_walk_recursive($arr, function($v, $k)use(&$count){if(array_key_exists($k, $count))$count[$k]++;else $count[$k]=1;}); print_r($count);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /in/bllb1:10 Stack trace: #0 [internal function]: {closure}('317.51474856007', 'weight') #1 /in/bllb1(10): array_walk_recursive(Array, Object(Closure)) #2 {main} thrown in /in/bllb1 on line 10
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bllb1 on line 10 Array ( [weight] => 2 [reps] => 4 )
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/bllb1 on line 10
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/bllb1 on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bllb1 on line 10
Process exited with code 255.
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