badcode

<?php

    class Account {

        private static $f = "data/.account";

        private static function GetDetails() {

            if(file_exists(self::$f)) {

                $arr = json_decode(file_get_contents(self::$f),true);

                return $arr;
            }
            else {
                die("Error getting login information. Please contact developer.");
            }

        }

        public static function Auth($email,$password) {

            $email = strtolower($email);

            $logged_in = false;
            $match = self::GetDetails();

            if((isset($_POST["email"]) ? $_POST["email"] : "") == $match["email"] && (isset($_POST["pass"]) ? $_POST["pass"] : "") == $match["pass"]) {

                SessionManager::Set((isset($_POST["remember"]) ? $_POST["remember"] : false) == "1" ? true : false);

                $logged_in = true;
                $message = "You have been logged in.";

            } else {

                $message = "Incorrect email or password.";
            }


            return array("status" => $logged_in, "msg" => $message);
        }

        public static function ChangePwd($old,$new,$confirm) {

            if($new != $confirm) {
                return array(false,"Passwords do not match");
            }

            $arr = self::GetDetails();

            if($old != $arr["pass"]) {
                return array(false,"Current password is incorrect");
            }

            $arr["pass"] = $new;

            $fw = fopen(self::$f,"w");
            fwrite($fw,json_encode($arr));
            fclose($fw);

            return array(true,"Passwords have been changed");

        }
    }

?>