delete array value and then compact

Question

I want to delete a value of a numbered index's array, and then compact the array so the left index is not empty. This is my code but i'd like to know if there is an array method which do that

for ($j = 30; $j < count($a); $j++) {
    if ($j+1 < count($a)) {
        $a[$j] = $a[$j+1];
    }
}
array_pop($a);

So this code remove the value of index 30 of the array and compact the array. I could use unset(a[30]) but that left me with an array with no index 30. And I can't iterate correctly that array.

Answer 1

You can iterate the array using foreach however to answer the index question:

unset($a[30]);
$a = array_values($a);

You might also use:

array_splice($a, 30, 1);