Question

我有两个数组

 Array
(
    [0] => stdClass Object
        (
            [id] => 14
            [employee_id] => ST0011
            [emp_name] => Munish Sharma
            [gender] => 
            [marital_status] => 
            [address] => 
            [postal_code] => 
            [home_phone] => 
            [mobile_phone] => 
            [work_email] => 
            [private_email] => 
            [joined_date] => 1970-01-01 00:00:00
            [emp_salary] => 0
            [confirmation_date] => 0000-00-00 00:00:00
            [department] => HRM
            [f_name] => fname
            [dob] => 1970-01-01
            [c_address] => 
            [domainName] => 
            [emp_status] => active
        )

    [1] => stdClass Object
        (
            [id] => 12
            [employee_id] => ST001dasd
            [emp_name] => Rakesh Negi
            [gender] => 
            [marital_status] => 
            [address] => 
            [postal_code] => 
            [home_phone] => 
            [mobile_phone] => 
            [work_email] => 
            [private_email] => 
            [joined_date] => 2015-08-11 00:00:00
            [emp_salary] => 0
            [confirmation_date] => 0000-00-00 00:00:00
            [department] => HRM
            [f_name] => dsad
            [dob] => 1970-01-01
            [c_address] => 
            [domainName] => 
            [emp_status] => active
        )

    [2] => stdClass Object
        (
            [id] => 13
            [employee_id] => ST001
            [emp_name] => Rakesh Negi
            [gender] => 
            [marital_status] => 
            [address] => 
            [postal_code] => 
            [home_phone] => 
            [mobile_phone] => 
            [work_email] => 
            [private_email] => 
            [joined_date] => 2015-08-06 00:00:00
            [emp_salary] => 0
            [confirmation_date] => 0000-00-00 00:00:00
            [department] => HRM
            [f_name] => Father Name
            [dob] => 1970-01-01
            [c_address] => 
            [domainName] => 
            [emp_status] => active
        )

)

，第二个数组就是这个

阵列

(
    [0] => stdClass Object
        (
            [id] => 55
            [emp_id] => ST001
            [check_in] => 11:38:09
            [check_out] => 00:00:00
            [total_time] => 00:00:00
            [status] => 
            [date_time] => 2015-10-20
            [emp_name] => Rakesh Negi
        )

)

现在我想这样做

Array
    (
        [0] => stdClass Object
            (
                [id] => 14
                [employee_id] => ST0011
                [emp_name] => Munish Sharma
                [gender] => 
                [marital_status] => 
                [address] => 
                [postal_code] => 
                [home_phone] => 
                [mobile_phone] => 
                [work_email] => 
                [private_email] => 
                [joined_date] => 1970-01-01 00:00:00
                [emp_salary] => 0
                [confirmation_date] => 0000-00-00 00:00:00
                [department] => HRM
                [f_name] => fname
                [dob] => 1970-01-01
                [c_address] => 
                [domainName] => 
                [emp_status] => active
            )

        [1] => stdClass Object
            (
                [id] => 12
                [employee_id] => ST001dasd
                [emp_name] => Rakesh Negi
                [gender] => 
                [marital_status] => 
                [address] => 
                [postal_code] => 
                [home_phone] => 
                [mobile_phone] => 
                [work_email] => 
                [private_email] => 
                [joined_date] => 2015-08-11 00:00:00
                [emp_salary] => 0
                [confirmation_date] => 0000-00-00 00:00:00
                [department] => HRM
                [f_name] => dsad
                [dob] => 1970-01-01
                [c_address] => 
                [domainName] => 
                [emp_status] => active
            )

         [3] => stdClass Object
            (
                [id] => 55
                [emp_id] => ST001
                [check_in] => 11:38:09
                [check_out] => 00:00:00
                [total_time] => 00:00:00
                [status] => 
                [date_time] => 2015-10-20
                [emp_name] => Rakesh Negi
            )

)

如果两个数组中的em_id相同，我想从第一个数组中删除该值吗？

我尝试使用condion和join这样的

$date = date('Y-m-d');
            $this->db->select('hrm_attendance.*,employees.emp_name');
            $this->db->from('hrm_attendance');
            $this->db->join('employees','hrm_attendance.emp_id=employees.employee_id','LEFT OUTER');            
            $this->db->where('hrm_attendance.date_time = "'.$date.'"');
            $this->db->order_by('check_in','asc');
            $query = $this->db->get();
            return $query->result();

并获得此输出

(
    [0] => stdClass Object
        (
            [id] => 55
            [emp_id] => ST001
            [check_in] => 11:38:09
            [check_out] => 00:00:00
            [total_time] => 00:00:00
            [status] => 
            [date_time] => 2015-10-20
            [emp_name] => Rakesh Negi
        )

)

但我想要上面描述的输出

如果我删除$this->db->where('hrm_attendance.date_time = "'.$date.'"');行，那么我将从表中获取所有记录，我希望employee表中的所有数据都包含所有ID，而只有来自hrm_attendance的数据{{1} 1}}可用于where条件 emp_id

Answer 1

请检查代码点火器文档

http://www.codeigniter.com/userguide2/database/active_record.html#select

$this->db->select('*');
$this->db->from('blogs');
$this->db->join('comments', 'comments.id = blogs.id');

$query = $this->db->get();

// Produces: 
// SELECT * FROM blogs
// JOIN comments ON comments.id = blogs.id

在选择（＆＃39; *＆＃39;）中，您也可以指定有限的字段。

Answer 2

您的bt不正确db->where

http://www.codeigniter.com/user_guide/database/query_builder.html#selecting-data

$this->db->where('hrm_attendance.date_time = "'.$date.'"');

Answer 3

我通过添加一些代码来找到解决方案

            $date = date('Y-m-d');
            $this->db->select('hrm_attendance.*,employees.emp_name');
            $this->db->from('hrm_attendance');
            $this->db->join('employees','hrm_attendance.emp_id=employees.employee_id','LEFT OUTER');            
            $this->db->where('hrm_attendance.date_time = "'.$date.'"');
            $this->db->order_by('check_in','asc');
            $query = $this->db->get();
            $result = $query->result();
      $count = count($result);
       for($i = 0;$i<$count;$i++)
        {
               $id[] = $data['user_logged_in'][$i]->emp_id;
        }
            $this->db->select('*');
            $this->db->from('employees');
            $this->db->where_not_in('employee_id',$id);
            $query = $this->db->get();
            $data['absent'] = $query->result();
            print_r($data['absent']);

通过使用这个，我得到了所有那些不在表hrm_attendance

中的员工

如何使用codeigniter

3 个答案: