An array map function creates a new array by calling a callback function for each element of the provided input array. PHP: array_map( $callback, $input_array ), JavaScript: inputArray.map( callback ).
PHP's array_map() function accepts a callback function to run for each element in each array and an array to run through the callback function. It returns an array containing all the elements of arr1 after applying the callback function to each one.
array array_map ( callable $callback , array $array1 [, array $... ] )
array_map()— Applies the callback to the elements of the given arrays
Example:
function cube($n)
{
return($n * $n * $n);
}
$a = array(1, 2, 3, 4, 5);
$b = array_map("cube", $a);
print_r($b);
Output:
Array
(
[0] => 1
[1] => 8
[2] => 27
[3] => 64
[4] => 125
)
