<?php
$XMLfeedback="";
$stack=array();
getComponent();
	function getComponent() {
		global $XMLfeedback;
		global $stack;
		$file = 'modules.xml';
		
			function startTag($parser, $name, $attrs)
			{
			   global $stack;
			   $tag=array("name"=>$name,"attrs"=>$attrs); 
			   array_push($stack,$tag);
			 
			}
		
			function cdata($parser, $cdata)
			{
			   global $stack,$i;
			  
			   if(trim($cdata))
			   {   
				   $stack[count($stack)-1]['cdata']=$cdata;   
			   }
			}
		
		function endTag($parser, $name)
		{
		   global $stack; 
		   $stack[count($stack)-2]['children'][] = $stack[count($stack)-1];
		   array_pop($stack);
		}
	
		
		$xml_parser = xml_parser_create();
		xml_set_element_handler($xml_parser, "startTag", "endTag");
		xml_set_character_data_handler($xml_parser, "cdata");
		
		$data = xml_parse($xml_parser,file_get_contents($file));
		if(!$data) {
		  /* die(sprintf("XML error: %s at line %d",
		xml_error_string(xml_get_error_code($xml_parser)),
		xml_get_current_line_number($xml_parser)));*/
		$XMLfeedback="XML error: ".xml_error_string(xml_get_error_code($xml_parser))." at line ".xml_get_current_line_number($xml_parser);
		}
		
		xml_parser_free($xml_parser);
		//return $stack;
	}//get Component
	
	function getNumber() {
		global $stack;
		$numberOfComponents=0;
		foreach ($stack[0]["children"] as $chiaveComponenti=>$valoreComponenti){
			$numberOfComponents++;
		}
		return $numberOfComponents;
	}

function getStack() {
	return $stack;
}
?>