Php codeigniter多重或查询

我想在Codeigniter中使用以下查询：

SELECT `users` . * , `users_profile` . * FROM (`users`) LEFT JOIN `users_profile`
ON `users`.`id` = `users_profile`.`users_id`
WHERE (`loginid` = '$username' OR `email` = '$username' )
AND `password` = '$password' AND `users`.`status` = 'A' LIMIT 1 

它工作正常，但当我以Codeigniter格式编写此查询时：

$this->db->where('loginid',"$username");
$this->db->or_where('email', "$username");    
$this->db->where('password',MD5($password));
$this->db->where('users.status','A');
$this->db->limit(1);

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它将始终返回true what is right syntax？

您应该使用where的自定义字符串方法，因为仅使用ActiveRecord无法直接执行此操作。请参阅并滚动至where功能下的第四个选项

例如：

    Custom string:

    You can write your own clauses manually:
    $where = "name='Joe' AND status='boss' OR status='active'";

    $this->db->where($where);

$this->db->where() accepts an optional third parameter. If you set it to FALSE, CodeIgniter will not try to protect your field or table names with backticks.

$this->db->where('MATCH (field) AGAINST ("value")', NULL, FALSE);

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您应该使用where的自定义字符串方法，因为仅使用ActiveRecord无法直接执行此操作。请参阅并滚动至where功能下的第四个选项

例如：

    Custom string:

    You can write your own clauses manually:
    $where = "name='Joe' AND status='boss' OR status='active'";

    $this->db->where($where);

$this->db->where() accepts an optional third parameter. If you set it to FALSE, CodeIgniter will not try to protect your field or table names with backticks.

$this->db->where('MATCH (field) AGAINST ("value")', NULL, FALSE);

---

可能您的查询应该与codeIgniter中的类似……。作为参考，您可以查看此链接

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可能您的查询应该与codeIgniter中的类似……。作为参考，您可以查看此链接

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您应该阅读以下内容：$this->db->whereloginid='$username'或email='$username'和password='MD5$password和status='A'和id='users\u id；您应该阅读以下内容：$this->db->whereloginid='$username'或email='$username'和password='MD5$password和status='A'和id='users\u id；