如何使用codeigniter打开pdf文件到浏览器中的另一个选项卡

Question

im making currently making my thesis about a record management of our university secretary.. in which all papers inside the office will be scanned and uploaded in the system.. i am using codeigniter..one of the feature in my system is to view the pdf file in other window of the browser. but my problem is, when i click the title. only blank page will be displayed in the other tab.. can you help me solve this one?? here is my code

controller:

 function viewMinutesFile(){
        if(isset($_GET['id'])){
            $id = $_GET['id'];
            $file = $this->minutes_model->getFile($id);

            $fp= fopen($file->path, "r");

            header("Cache-Control: maxage=1");
            header("Pragma: public");
            header("Content-type: application/pdf");
            header("Content-Disposition: inline; filename=".$file->filename."");
            header("Content-Description: PHP Generated Data");
            header("Content-Transfer-Encoding: binary");
            header('Content-Length:' .filesize($file->path));
            ob_clean();
            flush();
            while (!feof($fp)){
                $buff = fread($fp,1024);
                print $buff;
            }
            exit;

        }
    }

用于打开文件的代码:这是我的用户单击的语法,以便在新选项卡文件index.php/admin/viewMinutesFile中打开pdf文件？id ="target ="_ tab">

Answer 1

尝试使用静态网址.不需要任何额外的话.

<a href="<?=base_url('any_folder_name/any_file.pdf')?>" target="_blank">Show My Pdf</a>

新的更新

如果你的工作然后从数据库中获取pdf名称并将名称放在视图中

<a href="<?=base_url('index.php/admin/viewMinutesFile/'.$info['doc_id'])?>" target="_blank">Show My Pdf</a>

现在在控制器中

$this->load->helper('download');
if($this->uri->segment(3))
{
    $data   = file_get_contents('./file_path/'.$this->uri->segment(3));
}
$name   = $this->uri->segment(3);
force_download($name, $data);

Answer 2

好吧,你可以添加一个文件链接target="_blank",比如

<a href="<?php echo base_url(). 'your_controller/viewMinutesFile'; ?>" target="_blank">
    View Pdf
</a>

并在控制器功能:

function viewMinutesFile(){
    ....
    $file = $this->minutes_model->getFile($id);
    $this->output
           ->set_content_type('application/pdf')
           ->set_output(file_get_contents($your_pdf_file));
}