Array Map With Key Php Code Example

Example 1: using array map php

array_map ( callable $callback , array $array1 [, array $... ] ) : array

Example 2: array map php

The array_map() function sends each value of an array to a user-made function, and returns an array with new values, given by the user-made function.  Tip: You can assign one array to the function, or as many as you like.  Syntax array_map(functionname, array1, array2, array3, ...)    Example Send each value of an array to a function, multiply each value by itself, and return an array with the new values:  <?php function myfunction($val) {   return($val*$val); }  $a=array(1,2,3,4,5); print_r(array_map("myfunction",$a)); ?>

Example 3: php array map

$func = function cube($n) {     return ($n * $n * $n); } $a = [1, 2, 3, 4, 5]; $b = array_map( $func, $a );  // Outputs: Array ( //    [0] => 2 //    [1] => 4 //    [2] => 6 //    [3] => 8 //    [4] => 10 // )