如何从准备好的语句中获取数据？

Question

请帮助我。我进行了搜索，但是正在使用PDO和过程（$stmt-> fetch()）。我不明白

$sqls="SELECT ul.ul_uid,ul.ul_uname ,ul.ul_email,ul.ul_usertype,u.u_fname,u.u_lname FROM tbl_userlogin AS ul INNER JOIN tbl_user AS u ON u.u_id=ul.ul_uid WHERE ul.ul_uname=? OR ul.ul_email=?";
        $stmt=mysqli_stmt_init($conn);
        if(!mysqli_stmt_prepare($stmt,$sqls)){
            header("location:/signup.php?err=sqlError001");
            exit();
        } else {
            mysqli_stmt_bind_param($stmt,"ss",$uname,$email);
            mysqli_stmt_execute($stmt);
            mysqli_stmt_store_result($stmt);
            $result=mysqli_stmt_get_result($stmt);
            $count= mysqli_stmt_num_rows($stmt);   
        } if($count>0) {
            $result=mysqli_stmt_fetch($stmt);
            if($result['ul_email']==$email)
            {
               header("location:../signup.php?err=Email Exist");
                    exit();
            }
            else if($result['ul_uname']==$uname)
            {
                header("location:../signup.php?err=username taken");
                exit(); 
            }
        }

查询有效。我也尝试了绑定结果，没有用。也欢迎您提出绑定结果。