php array and add elements code example
Example 1: php append to array
$myArr = [1, 2, 3, 4];
array_push($myArr, 5, 8);
print_r($myArr); // [1, 2, 3, 4, 5, 8]
$myArr[] = -1;
print_r($myArr); // [1, 2, 3, 4, 5, 8, -1]
Example 2: php append element to array
array_push($cart, 13);