3v4l.org

run code in 300+ PHP versions simultaneously
<?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, $k){if(array_key_exists($k, $count))$count[$k]++;else $count[$k]=1;}, $count); print_r($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
Warning: Undefined variable $count in /in/bY866 on line 10 Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /in/bY866:10 Stack trace: #0 [internal function]: {closure}('317.51474856007', 'weight', Array) #1 /in/bY866(10): array_walk_recursive(Array, Object(Closure), Array) #2 {main} thrown in /in/bY866 on line 10
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, unknown given in /in/bY866 on line 10 Array ( )
Output for 7.3.32 - 7.3.33
Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Array ( )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.31
Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Notice: Undefined variable: count in /in/bY866 on line 10 Warning: array_key_exists() expects parameter 2 to be array, null given in /in/bY866 on line 10 Array ( )
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/bY866 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/bY866 on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bY866 on line 10
Process exited with code 255.
preferences:
254.31 ms | 401 KiB | 341 Q