Add commas to items and with “and” near the end in PHP

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 on

Answer 1

Well if it is an array just use implode(...)

Example:

$items = array("Item 1", "Item 2", "Item 3", "Item 4");
$items[count($items) - 1] = "and " . $items[count($items) - 1];
$items_string = implode(", ", $items);

echo $items_string;

Demo: http://codepad.viper-7.com/k7xISG