Answers for "how to add to the array() php"

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]

php add array to array

$a = array('a','b','c');
$b = array('c','d','e');

array_push($a, ...$b);
print_r($a);
/*
notice this is different than array merge as it does not merge
values that the same 
Array
(
    [0] => a
    [1] => b
    [2] => c
    [3] => c
    [4] => d
    [5] => e
)
*/