如何在编码器中将变量从一个函数传递到另一个函数 - how to pass variable from one function to another function in codeigniter

how to pass variable from one function to another function in codeigniter

在我的控制器中有两个这样的函数。

function search_keyword()
{
    $keyword    =   $this->input->post('keyword');
    $this->data['result']    =   $this->mymodel->search($keyword);
    //print_r($this->data); 
    //$pro_id = [];
    foreach($this->data['result'] as $key => $val){
       $pro_id[] = $val->product_id;
    }
    print_r($pro_id);       
    $this->download_function();
    $this->twig->display('home.html', $this->data);
}
function download_function()
{
    //print_r($keyword);
    $this->data['re']    =   $this->csv->ExportCSV($keyword);
    $this->twig->display('home.html', $this->data);
}

我想通过pro_id变量从search_keyword函数download_function。请帮我做这件事。

这是我的模型

function ExportCSV($pro_id)
{
    //print_r($keyword);
    $this->load->dbutil();
    $this->load->helper('file');
    $this->load->helper('download');
    $delimiter = ",";
    $newline = "'r'n";
    $filename = "filename_you_wish.csv";
    $query = "SELECT * FROM products WHERE product_id LIKE '%$pro_id%'";
    $result = $this->db->query($query);
    $data = $this->dbutil->csv_from_result($result, $delimiter, $newline);
    force_download($filename, $data);
}

function search_keyword()
{
    $keyword    =   $this->input->post('keyword');
    $this->data['result']    =   $this->mymodel->search($keyword);
    //print_r($this->data); 
    //$pro_id = [];
    foreach($this->data['result'] as $key => $val){
       $pro_id[] = $val->product_id;
    }
    print_r($pro_id);       
    $this->download_function($pro_id);
    $this->twig->display('home.html', $this->data);
}
function download_function($pro_id)
{
    //print_r($keyword);
    $this->data['re']    =   $this->csv->ExportCSV($keyword);
    $this->twig->display('home.html', $this->data);
}

可以通过参数传递

这很简单，就像传递参数给任何函数一样。

public function search_keyword() {
    $keyword    =   $this->input->post('keyword');
    $this->data['result']    =   $this->mymodel->search($keyword);
    //print_r($this->data); 
    $pro_id = [];
    foreach($this->data['result'] as $key => $val){
       $pro_id[] = $val->product_id;
    }
    print_r($pro_id);       
    $this->download_function($pro_id);
    $this->twig->display('home.html', $this->data);
}
public function download_function($pro_ids) {
    //print_r($keyword);
    $this->data['re']      =   $this->csv->ExportCSV($keyword);
    $this->data['pro_ids'] =   $pro_ids;
    $this->twig->display('home.html', $this->data);
}

在聊天室讨论了一段时间后，我们想到的解决方案是将代码更改为:

function search_keyword()
{
    $pro_id = $this->input->post('keyword');
    $this->download_function($pro_id);
    $this->twig->display('home.html', $this->data);
}
function download_function($pro_id)
{
    $this->data['re'] = $this->csv->ExportCSV($pro_id);
    $this->twig->display('home.html', $this->data);
}