PHP's array_map including keys

Question

Is there a way of doing something like this:

$test_array = array(\"first_key\" => \"first_value\", 
                    \"second_key\" => \"second_valu         


        

Answer 1

I'll add yet another solution to the problem using version 5.6 or later. Don't know if it's more efficient than the already great solutions (probably not), but to me it's just simpler to read:

$myArray = [
    "key0" => 0,
    "key1" => 1,
    "key2" => 2
];

array_combine(
    array_keys($myArray),
    array_map(
        function ($intVal) {
            return strval($intVal);
        },
        $myArray
    )
);

Using strval() as an example function in the array_map, this will generate:

array(3) {
  ["key0"]=>
  string(1) "0"
  ["key1"]=>
  string(1) "1"
  ["key2"]=>
  string(1) "2"
}

Hopefully I'm not the only one who finds this pretty simple to grasp. array_combine creates a key => value array from an array of keys and an array of values, the rest is pretty self explanatory.