detecting empty xml tags with php

[ryanrk]

I have all my xml tags going into the $temp variable with the correct "tag' name as you can see. Teh problem i'm having is detecting empty XML tags. I tried to set teh $temp array index to either empty string, null, or space but none of that works. Have any ideas?

function startElement($parser, $name, $attrs=''){
		global $current_tag;
		$current_tag = $name;
}
function endElement($parser, $name, $attrs=''){
		global $close_tags, $temp, $current_tag;
}
function characterData($parser, $data){
		global $current_tag, $temp, $catID;

		switch($current_tag){
		case 'CITY':
			$temp['CITY'] = $data;
			$current_tag = '';
			break;
		case 'STATE':
			$temp['STATE'] = $data;
			$current_tag = '';
			break;
                           }
}

//setting up parser and opening file is all here.