Codeigniter request control class

[krist4l]

i'm trying to do myself a good simple request control library.this is my code:\[code\]class CI_Request{ public function isAjax() { return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'; } public function isPost() { return isset($_POST); } public function isGet() { return isset($_GET); }}\[/code\]but i don't know if i'm right.any suggestions? really thanks