dovs36921 2014-03-13 08:13
浏览 40

Mysqli - OOP实施

[SOLVED]

I have two classes: DB class which is a Mysqli implementation and Users class.

User class have 2 functions: get user and get users.

public function get_user_data($email){
$query="SELECT * FROM users WHERE email='$email'";
$result= $this->mydb->runQuery($query);
return $result->fetch_array();
}

this function works with no problem. I call it like this:

$userData   = $users->get_user_data($email]);
$username = $userData['nickname'];

The problem is in the second function that gets all users:

public function get_users(){
$query="SELECT * FROM users ORDER BY time";
$result= $this->mydb->runQuery($query);
return $result->fetch_all();}

I use it like this:

$members = $users->get_users(); 
foreach ($members as $member) {
echo '<p>' . $member[1] . ' with email ' . $member[8]. '</p>';}

I want to call $members like in the first example, as members['email'] and not by order of the columns and i have read that fetch_all produce assosiative array but it doesnt work and i get an error. How should i change it so i can use it with the column names?

ANSWER: What i needed to do is just to explicitly write:

return $result->fetch_all(MYSQLI_ASSOC);

and then it works great,

  • 写回答

1条回答 默认 最新

  • dongpang1898 2014-03-13 08:20
    关注

    Instead of writing your own OOP implementation, first try to use a ready-made one.

    Say, with my safeMysql class you will get the desired result with cleaner and safer code:

    public function get_user_data($email)
    {
        $query = "SELECT * FROM users WHERE email=?s";
        return $this->mydb->getRow($query, $email);
    }
    
    public function get_users()
    {
        return $this->mydb->getAll("SELECT * FROM users ORDER BY time");
    }
    
    评论

报告相同问题?

悬赏问题

  • ¥15 改算法,照着压缩包里边,参考其他代码封装的格式 写到main函数里
  • ¥15 用windows做服务的同志有吗
  • ¥60 求一个简单的网页(标签-安全|关键词-上传)
  • ¥35 lstm时间序列共享单车预测,loss值优化,参数优化算法
  • ¥15 Python中的request,如何使用ssr节点,通过代理requests网页。本人在泰国,需要用大陆ip才能玩网页游戏,合法合规。
  • ¥100 为什么这个恒流源电路不能恒流?
  • ¥15 有偿求跨组件数据流路径图
  • ¥15 写一个方法checkPerson,入参实体类Person,出参布尔值
  • ¥15 我想咨询一下路面纹理三维点云数据处理的一些问题,上传的坐标文件里是怎么对无序点进行编号的,以及xy坐标在处理的时候是进行整体模型分片处理的吗
  • ¥15 一直显示正在等待HID—ISP