對於每個循環無法正常工作

Question

我有一些主類別和用戶組，用戶組被分配到主類別。我正在使用下面的代碼，但它只顯示錶中的最後一條記錄，而我需要顯示所有匹配的記錄。

功能的控制器：

function listdesignation($id) { 
    $res = $this->designation_model->GetDesignation($id); 
    $this->data['test'] = $res; 
    if ($res) { 
     foreach ($res as $row) { 
      $this->data['selected_designation'] = $this->designation_model->GetDesignation_Names($row['designation_id']); 
     } 
     if ($this->data['selected_designation']) { 
      $this->data['enable_view'] = true; 
     } 
    } 
} 

功能模型：

function GetDesignation_Names($id) { 
    $designation = array(); 
    $this->db->select('*'); 
    $this->db->from('delta_designation'); 
    $this->db->where('designation_id', $id); 
    $query = $this->db->get(); 
    if ($query->num_rows() > 0) { 
     foreach ($query->result() as $row) { 
      $designation[$row->designation_id]['designation_id'] = $row->designation_id; 
      $designation[$row->designation_id]['designation'] = $row->designation; 
     } 
     return $designation; 
    } 
    return false; 
} 

Answer 1

你通過你的foreach循環覆蓋每次迭代的變量。你可能想要建立一個數組。

例如而不是

foreach (...) { 
    $myvar = $row->field; 
} 

試試這個：

$myresult = array(); 
foreach (...) { 
    $myvar = $row->field; 
    $myresult[]= $myvar; // (append to array) 
} 

然後，您可以：

foreach ($myresult as $onerow) { 
    ... 
}