code factorize

index.php

   $headers = apache_request_headers();
   if (!isset($headers["Api-Key"]))
     return false;
-  $q = database_exec("SELECT id FROM api_keys WHERE `key` = :key",
-                     array(":key" => $headers["Api-Key"]));
-  if ($q->fetch() !== false)
-    return true;
-  return false;
+  return database_exec("SELECT id FROM api_keys WHERE `key` = :key",
+                       array(":key" => $headers["Api-Key"]))-> fetch()
+                       !== false;
 }
 
 function check_api_key()
   $path = rtrim($_GET['_url'], "/");
   if ($path === "")
     $path = "/";
+
   if (preg_match($path, "^/status/([0-9]+)/confirm$", $matches) && $m_post)
     status_confirm($matches[1]);
   else if ($path === "/status" && $m_post)