diff --git a/src/Url.php b/src/Url.php
index d87c70e..96060ea 100644
--- a/src/Url.php
+++ b/src/Url.php
@@ -79,36 +79,68 @@ class Url {
    *                                            authenticated users (optional, default: true if the
    *                                            special force_authentication function is defined,
    *                                            false otherwise)
-   * @param boolean           $override         Allow override if a command already exists with the
+   * @param boolean           $overwrite        Allow overwrite if a command already exists with the
    *                                            same name (optional, default: false)
    * @param boolean           $api_mode         Enable API mode (optional, default: false)
-   * @param array|string|null $methods          HTTP method (optional, default: array('GET', 'POST'))
+   * @param array|string|null $http_methods     HTTP method (optional, default: array('GET', 'POST'))
+   * @return bool
    **/
   public static function add_url_handler($pattern, $handler=null, $additional_info=null,
-                                         $authenticated=null, $override=true, $api_mode=false,
-                                         $methods=null) {
+                                         $authenticated=null, $overwrite=true, $api_mode=false,
+                                         $http_methods=null) {
     $authenticated = (
       is_null($authenticated)?
       function_exists('force_authentication'):
       (bool)$authenticated
     );
-    if (is_null($methods))
-      $methods = array('GET', 'POST');
-    elseif (!is_array($methods))
-      $methods = array($methods);
+
+    // Check HTTP methods parameter
+    if (is_null($http_methods))
+      $http_methods = array('GET', 'POST');
+    elseif (!is_array($http_methods))
+      $http_methods = array($http_methods);
+
+    // If multiple patterns specify using an array, add each of them
     if (is_array($pattern)) {
+      $error = false;
       if (is_null($handler))
         foreach($pattern as $p => $h)
-          self :: add_url_handler(
-            $p, $h, $additional_info, $authenticated, $override, $api_mode, $methods);
+          if (
+            !self :: add_url_handler(
+              $p, $h, $additional_info, $authenticated, $overwrite, $api_mode, $http_methods)
+          ) $error = true;
       else
         foreach($pattern as $p)
-          self :: add_url_handler(
-            $p, $handler, $additional_info, $authenticated, $override, $api_mode, $methods);
+          if (
+            !self :: add_url_handler(
+              $p, $handler, $additional_info, $authenticated, $overwrite, $api_mode, $http_methods)
+          ) $error = true;
+      return !$error;
     }
-    else {
-      if (!isset(self :: $patterns[$pattern])) {
-        self :: $patterns[$pattern] = array(
+
+    $error = false;
+    foreach($http_methods as $http_method) {
+      if (!isset(self :: $patterns[$http_method]))
+          self :: $patterns[$http_method] = array();
+      // Check overwrite
+      if (isset(self :: $patterns[$http_method][$pattern])) {
+          if (!$overwrite) {
+              Log :: error(
+                  "URL : pattern '%s' already defined for HTTP method %s: do not overwrite.".
+                  $pattern, $http_method);
+              $error = true;
+              continue;
+          }
+          Log :: debug(
+              "URL : overwrite pattern '%s' for HTTP method %s with handler '%s' ".
+              "(old handler = '%s')".
+              $pattern, $http_method, format_callable($handler),
+              vardump(self :: $patterns[$http_method][$pattern])
+          );
+      }
+
+      // Register URL pattern info
+      self :: $patterns[$http_method][$pattern] = array(
           'handler' => $handler,
           'additional_info' => (
               is_array($additional_info)?
@@ -116,29 +148,14 @@ class Url {
           ),
           'authenticated' => $authenticated,
           'api_mode' => $api_mode,
-          'methods' => $methods,
-        );
-      }
-      elseif ($override) {
-        Log :: debug(
-          "URL : override pattern '%s' with handler '%s' (old handler = '%s')".
-          $pattern, format_callable($handler), vardump(self :: $patterns[$pattern])
-        );
-        self :: $patterns[$pattern] = array(
-          'handler' => $handler,
-          'additional_info' => (
-              is_array($additional_info)?
-              $additional_info:array()
-          ),
-          'authenticated' => $authenticated,
-          'api_mode' => $api_mode,
-          'methods' => $methods,
-        );
-      }
-      else {
-        Log :: debug("URL : pattern '$pattern' already defined : do not override.");
-      }
+      );
+      Log :: trace(
+          "URL: Register pattern '%s' on HTTP %s with :\n%s",
+          $pattern, $http_method, vardump(self :: $patterns[$http_method][$pattern])
+      );
     }
+
+    return !$error;
   }
 
   /**
@@ -248,21 +265,28 @@ class Url {
     }
 
     Log :: debug("URL : current url = '$current_url'");
-    Log :: trace(
-      "URL : check current url with the following URL patterns :\n - ".
-      implode("\n - ", array_keys(self :: $patterns))
-    );
-    foreach (self :: $patterns as $pattern => $handler_infos) {
-      $m = self :: url_match($pattern, $current_url, $handler_infos['methods']);
-      if (is_array($m)) {
-        $request = new UrlRequest($current_url, $handler_infos, $m);
-        // Reset last redirect
-        if (isset($_SESSION['last_redirect']))
-          unset($_SESSION['last_redirect']);
-        Log :: trace("URL : result :\n".vardump($request));
-        return $request;
+    if (array_key_exists($_SERVER['REQUEST_METHOD'], self :: $patterns)) {
+      Log :: trace(
+        "URL : check current url with the following URL patterns :\n - ".
+        implode("\n - ", array_keys(self :: $patterns))
+      );
+      foreach (self :: $patterns[$_SERVER['REQUEST_METHOD']] as $pattern => $handler_infos) {
+        $m = self :: url_match($pattern, $current_url, $handler_infos['methods']);
+        if (is_array($m)) {
+          $request = new UrlRequest($current_url, $handler_infos, $m);
+          // Reset last redirect
+          if (isset($_SESSION['last_redirect']))
+            unset($_SESSION['last_redirect']);
+          Log :: trace("URL : result :\n".vardump($request));
+          return $request;
+        }
       }
     }
+    else {
+      Log :: debug(
+        'URL: no URL pattern registered for %s HTTP method',
+        $_SERVER['REQUEST_METHOD']);
+    }
     if ($default_url !== false) {
       Log :: debug("Current url match with no pattern. Redirect to default url ('$default_url')");
       self :: redirect($default_url);