PHP过滤数据

<?php
//处理输入数据
//过滤引号
//过滤html标签
class Input{
    public static function get($name=''){
        if(empty($name)){
            $arrGet=array();
            foreach ($_GET as $key => $value) {
                $arrGet[$key]=mysqli_real_escape_string(htmlspecialchars($value));
            }
            return $arrGet;

        }else{
            return mysqli_real_escape_string(htmlspecialchars($_GET[$name]));
        }
    }

    public static function intQuery($name='id'){
        return (int)$_GET[$name];
    }

    public static function post($name=''){
        if(empty($name)){
            $arrPost=array();
            foreach ($_POST as $key => $value) {
                $arrPost[$key]=mysqli_real_escape_string(htmlspecialchars($value));
            }
            return $arrPost;

        }else{
            return mysqli_real_escape_string(htmlspecialchars($_POST[$name]));
        }
    }

    public static function session($name){

    }

    public static function cookie($name){

    }

    public static function server($name)

}
?>