What is the difference between?
if (empty... http://www.php.net/manual/en/function.empty.php "Determine
whether a variable is empty"
if (isset... http://php.net/manual/en/function.isset.php "Determine if a
variable is set and is not *|NULL|*"
I have an <input type="radio" value="something">.
If it is not checked, it is NOT empty, because it has a value, right?
But it is NOT set, right?
Is this empty, because it's value is ""?
<input type="text" value="">
Just trying to understand ... :)