Online PHP editor | refs for hYW1r

@ 2024-03-31T21:57:30Z

<?php

function array_map_custom($array, $callable) {
    $result = [];
    foreach($array as $item) {
        $result[] = $callable($item);
    }
    return $result;
}

$arr = [1, 2, 3, 4];

$newArr = array_map_custom(
    $arr, 
    function($x){
        return $x*$x;
    });
    
print_r($newArr);