[resolved] split string to array, then foreach

[solitario]

Hello all.

I am posting a string, $_POST['hotels'], which is: "2,33,22,20,21"

I would like to split that string, at the comma, into an array, converting each to a number, then doing a foreach.

I was thinking:

$hotels = split(',',$_POST['hotels']);

foreach ($hotels as $x) {
	//convert $x to a number
	//do something with $x
}

But I'm not doing it right.
Any help is greatly appreciated.
Many thanks.