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求问下这个 Call to undefined function int()的缘故

WBOY
WBOYOriginal
2016-06-13 12:45:451180browse

求问下这个 Call to undefined function int()的原因
public static function getById($uid){
    $user = new User;
    $sql = sprintf('SELECT username, password, email_add, is_active, perm  FROM  %suser  WHERE user_id = %d',DB_TB_PREFIX, mysql_real_escape_string($uid));
    $query = mysql_query($sql);
    if(mysql_num_rows($query) && $res = mysql_fetch_assoc($query)){
        $user->uid = int($uid);//注意这里用了int
        $user->username = $res['username'];
        $user->password = $res['password'];
        $user->isActive = $res['is_active'];
        $user->emailAddr = $res['email_add'];
        $user->perm = $res['perm'];
    }

    return $user;
}

当我在另一个页面
$user = User::getById($_SESSION['uid']);//$_SESSION['uid']是存在的

报错 Call to undefined function int();

请问是什么原因?

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