[PHP-XML] je cherche à lire un fichier xml !

$x='xml/file.xml';
$xml = simplexml_load_file($x);
	
echo '<h2> Showing '.$xml->count().' items </h2>';
			
////echo all children+attributes from "file.xml" with hierarchy 

foreach ($xml->children() as $m) 
{ 
   printf("<h3>%s has got %d children.</h3>\n", $m['name'], $m->count());
		
	//first level
    	echo '<li><b>' .$m->getName().' </b>: '. $m.'</li><ul><ul>';
		if ($t=$m->attributes())  
				foreach($m->attributes() as $a => $b)
 				 {
   					 echo '<li>  '.$a,' = ',$b,"</li>";
					
				 }
				 
				 echo '</ul></ul>';
		
		//second level		 
		foreach ($m->children() as $mv) 
		{
    		echo ' <ul><li> <b> ' .$mv->getName();
                echo '</b>  :  '. $mv.'</li><ul>';
		 
			if ($mv->attributes())  
				foreach($mv->attributes() as $a => $b)
 				 {
   					 echo '<li>  '.$a,' = ',$b,"</li>";
				 }
			echo '</ul>';
				 
			
		   //third level	 
		   foreach ($mv->children() as $mvv) 
			{
			echo '<ul> <li><b>' . $mvv->getName();
                        echo '</b>  :  '.$mvv.'</li><ul>';
				
				if ($mvv->attributes())  
				 foreach($mvv->attributes() as $a => $b)
				  {
						 
					 echo '<li> '.$a,' = ',$b,"</li>";
						
				  }
				 echo '</ul></ul>';
				 
				//fourth level 
				foreach ($mvv->children() as $v) 
				{
    				echo ' <ul><li><b>' . $v->getName();
                                echo '</b> :  '.$v.'</li><ul>';
				 if ($v->attributes())  
				   foreach($v->attributes() as $a => $b)
 				 	  {
   					    echo '<li> '.$a,' = ',$b,"</li>";
				 	  }
				 	echo '</ul></ul>';
				}//4
				
			}//3
		 echo '</ul></ul>';
		 
		}//2
   
	}//end foreach 1