聲明在Codeigniter中從數據庫中獲取值的全局數組

Question

我有一個模板，可以將我的視圖加載到header，footer和main_content等部分。我在頁腳中有一個小部件，我想顯示特定類別的前5個帖子，例如「Current Affairs」。由於模板是以部分方式加載的，我想要一個加載這些數據並將其提供給模板的footer.php文件的函數。但是，該函數應該在構造函數中加載，以便控制器的所有其他功能不需要調用此函數。繼承人我的代碼。

class Home extends CI_Controller { 

// public $data['latest_current_affairs'] = array(); // Tried this, doesnt work. 

function __construct() 
{ 
    parent::__construct(); 
    $this->load->model('Add'); 
    $this->load->model('Fetch'); 
    $this->load->library('form_validation'); 
    $this->load->helper('date'); 
    // $this->load_widgets(); //works fine if we print an array 
} 

public function load_widgets() 
{ 
    $where = array('post_category' => "Current Affairs", 'post_status' => "Published"); 
    $orderby = NULL; 
    $limit = 5; 
    $data['latest_current_affairs'] = $this->Fetch->selectWhereLimit('post', $where, $orderby, $limit);  
    // print_r($data); //works fine if printed through here. 
} 

public function index() 
{ 
    $data['main_content'] = 'home'; 
    $this->load_widgets(); 
    $this->load->view('includes/template', $data); 
    print_r($data); //Here the data prints only the main_content index but not the latest_current_affairs index of the array. 
}} 

這裏是我的template.php的內容：

<?php $this->load->view('includes/header'); ?> 

<?php $this->load->view($main_content); ?> 

<?php $this->load->view('includes/footer'); ?> 

的代碼優化或更好的編碼技術的任何建議都歡迎。

Answer 1

這裏是示例代碼來存儲數據在全球陣列。

class Check extends CI_Controller 
{ 
    public function __construct() { 
     parent::__construct(); 
     $this->data['f1'] = $this->f1(); 
    } 

    function f1() 
    { 
     return "response1"; 
    } 

    function f2() 
    { 
     $this->data['f2'] = "response2"; 
     print_r($this->data); 
    } 
} 

Answer 2

要聲明地球陣列笨你有你的config file

$config['item_name']= array('post_category' => "Current Affairs", 'post_status' => "Published"); 

定義有關讀取配置項

$this->config->item('item_name'); 

所以，你的指數函數是

public function index() 
{ 
    $where=$this->config->item('item_name'); 
    $orderby = NULL; 
    $limit = 5; 
    $data['latest_current_affairs'] = $this->Fetch->selectWhereLimit('post', $where, $orderby, $limit);  
    $data['main_content'] = 'home'; 
    $this->load->view('includes/template', $data); 
    print_r($data); //Here the data prints only the main_content index but not the latest_current_affairs index of the array. 
} 

已更新

您可以創建輔助文件，它

function load_widgets() 
{ 
$CI = get_instance(); 
$CI->load->model('Fetch'); 
$where=$CI->config->item('item_name'); 
$orderby = NULL; 
$limit = 5; 
return $latest_current_affairs = $CI->Fetch->selectWhereLimit('post', $where, $orderby, $limit); 
} 

你控制器

function __construct() 
{ 
parent::__construct(); 
$this->load->model('Add'); 
$this->load->model('Fetch'); 
$this->load->library('form_validation'); 
$this->load->helper('date'); 
$result=$this->load_widgets(); 
print_r($result); 
} 

ANS不要忘了打電話給你的幫助文件