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<?php $items = array( array( array("Color" => "Blue"), array("Size" => "S") ), array( array("Color" => "Blue"), array("Size" => "M") ) ); $new_items = array_map(function ($item) { $seed = array(); return array_reduce($item, function ($seed, $value) { return array_map(function ($value) { $seed[] = $value; }, $key_values); return $seed; }, array()); }, $items); var_dump($new_items);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $key_values in /in/K5IDA on line 18 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/K5IDA:16 Stack trace: #0 /in/K5IDA(16): array_map(Object(Closure), NULL) #1 [internal function]: {closure}(Array, Array) #2 /in/K5IDA(15): array_reduce(Array, Object(Closure), Array) #3 [internal function]: {closure}(Array) #4 /in/K5IDA(12): array_map(Object(Closure), Array) #5 {main} thrown in /in/K5IDA on line 16
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: Undefined variable $key_values in /in/K5IDA on line 18 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/K5IDA:18 Stack trace: #0 /in/K5IDA(18): array_map(Object(Closure), NULL) #1 [internal function]: {closure}(Array, Array) #2 /in/K5IDA(20): array_reduce(Array, Object(Closure), Array) #3 [internal function]: {closure}(Array) #4 /in/K5IDA(21): array_map(Object(Closure), Array) #5 {main} thrown in /in/K5IDA on line 18
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 array(2) { [0]=> NULL [1]=> NULL }
Output for 7.3.32 - 7.3.33
Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/K5IDA on line 18 array(2) { [0]=> NULL [1]=> NULL }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Argument #2 should be an array in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Argument #2 should be an array in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Argument #2 should be an array in /in/K5IDA on line 18 Notice: Undefined variable: key_values in /in/K5IDA on line 18 Warning: array_map(): Argument #2 should be an array in /in/K5IDA on line 18 array(2) { [0]=> NULL [1]=> NULL }
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, expecting ')' in /in/K5IDA on line 12
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, expecting ')' in /in/K5IDA on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/K5IDA on line 12
Process exited with code 255.
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