Question

I want to add a comma to every item except the last one. The last one must have “and”.

Item 1, Item 2 and Item 3

But items can be from 1 +

So if one item:

Item 1

If two items:

Item 1 and Item 2

If three items:

Item 1, Item 2 and Item 3

If four items:

Item 1, Item 2, Item 3 and Item 4

etc, etc.

Answer 1

Here’s a function for that; just pass the array.

function make_list($items) {
    $count = count($items);

    if ($count === 0) {
        return '';
    }

    if ($count === 1) {
        return $items[0];
    }

    return implode(', ', array_slice($items, 0, -1)) . ' and ' . end($items);
}

Demo