Deprecated: mysql_escape_string (): This function is deprecated; use mysql_real_escape_string () instead

You need help with this, please thanks

  

Deprecated: mysql_escape_string (): This function is deprecated; use   mysql_real_escape_string () instead. in   C: \ wamp64 \ www \ crudmvc \ app \ Controller.php online 29

protected function getSql($clave){
        if(isset($_POST[$clave]) && !empty($_POST[$clave])){
            $_POST[$clave] = strip_tags($_POST[$clave]);
            if(!get_magic_quotes_gpc())
                $_POST[$clave] = mysql_escape_string($_POST[$clave]);

            return trim($_POST[$clave]);
        }
    }