array_map() function is used to apply a callback function to each element of an array.
<?php
// Example callback function
function square($num) {
return $num * $num;
}
$array = array(1, 2, 3, 4, 5);
$result = array_map("square", $array);
print_r($result);
?>Output:
Array ( [0] => 1 [1] => 4 [2] => 9 [3] => 16 [4] => 25 )