<?php 
 class Url
 {
 	static function link_rewrite($page, $params = array())
 	{
 		$stringParams = '';
 		foreach($params as $key => $values){
 			$stringParams .= "/" . $key ."/" . $values;
 		}
 		return (('home' == $page) ? '/' : '/' . $page . $stringParams);
 		  // -- Bonne version
 		
 		/*
 		//Changement de comportement d'une fonction PHP-Zend ... grrr
 		array_unshift($params , $page);
 		var_dump($params);
 		$page = '/' . implode('/' , $params);
 		*/
 		return $page;
 		
 	}
 	static function url_rewrite()
 	{
 		
 		$url = parse_url($_SERVER['REQUEST_URI']);
 		$urlParts = explode('/' , trim( $url['path'] , '/' ));
 		//Récupération du nom de la page
 		//$page['name'] = $urlParts[0];
 		($urlParts[0] == 'index' ||$urlParts[0] == '' )?$page['name']='home':$page['name']=$urlParts[0];
 		
 		unset($urlParts[0]);
 		
 		//vérification du nombre de parametres: s'il n'existe pas autant de clé que
 		// de valeurs on sort de la fonction et on renvoie une page d'erreur.
 		$numParts = count($urlParts);
 		if (0!=$numParts%2) {
 			$page['name'] = 'error';
 			$page['params'] = array();
 			return $page;
 		}else{
 		
 		$values = array();
 		$keys = array();
 		foreach( $urlParts as $key => $value ){
 			if($key%2 == 0) {
 				$values[] = $value;
 			} else {
 				$keys[] = $value;
 			}
 		}
 		$page['params'] = array_combine($keys, $values);
 		}
 		
 		$pageFile = PAGES_PATH . DIRECTORY_SEPARATOR . $page['name'] . '.php';
 		
 		if(!file_exists($pageFile)){
 			$page['name'] = 'error';
 		}
 		return $page;
 		
 	}
 	
 }