Codeigniter上的SQL查詢

Question

我有一個數據庫（字段）與行：ID, field_name, field_label. 我想建立一個數組與所有的有效記錄。

fields_model是：

public function getFields() { 
    $this->db->select('*')->from('fields'); 

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

    if (!$query->num_rows() > 0) { 
     die("Error"); 
    } 

    $fields = array(); 

    foreach ($query->result() as $row) { 
     $fields[$row->id]['nume'] = $row->field_name; 
     $fields[$row->id]['label'] = $row->field_label; 
    } 
    // Pass the result back to the controller 
    return $fields; 


} 

在控制器我有：

$this->load->model('fields_model'); 
    $data['fields'] = $this->fields_model->getFields(); 

但我得到：Message: Array to string conversion error 任何IDEEA？感謝

Answer 1

刪除此行

$fields = array(); 

Answer 2

在模型

function getFields() 
    { 

     $query = $this->db->query("SELECT * from fields"); 
     $result = $query->result_array(); 
     return $result; 
    } 

在控制器

$this->load->model('fields_model'); 
    $data['fields'] = $this->fields_model->getFields(); 

    if (empty($data['fields'])) 
    { 
     echo "Empty data"; 
    } 
    else 
    { 
     return $result; 
    } 

鑑於

<?php 
    foreach ($fields as $new_item) 
    { 
     echo $new_item['nume']; 
     echo "<br/>"; 
     echo $new_item['label']; 
    } 

Answer 3

使用此代碼 -

public function getFields() { 
    $this->db->select('*')->from('fields'); 

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

    if (!$query->num_rows() > 0) { 
     die("Error"); 
    } 

    $fields = array(); 

    foreach ($query->result() as $row) { 
     $fields[$row->id]['nume'] = $row->field_name; 
     $fields[$row->id]['label'] = $row->field_label; 
     $fields_array[]=$fields; 
    } 
    // Pass the result back to the controller 
    return $fields_array; 


} 

Answer 4

希望這有助於：

public function getFields() { 
    $query = $this->db->get('fields'); 
    $result = $query->result(); 

    $array = array(); 
    foreach($result as $field){ 
     $element = array(
      'nume' => $field->field_name, 
      'label'=> $field->field_label 
     ); 
     array_push($array, $element); 
    } 

    return $array; 
}