PHP validate checkbox and radiobutton

[AngelicOne]

How could I validate a checkbox and radiobutton input using PHP? I wish to display a message if there's no selected value from checkbox or radiobutton. I tried this for my checkbox.

	$check = $_POST["checkbox"];	 	if(empty($check))	{	echo "You need to select at least one from the checkboxes";	}

But this doesn't work.

[Ingolme]

That should work. What result are you getting when you test?

[AngelicOne]

That should work. What result are you getting when you test?

I think it was caused by the isset function around it. It looks to me that I'm double checking it by using the isset function and empty function, that's why it didn't work.I solved it by removing the isset function.Thanks!