44 lines
1.4 KiB
PHP
44 lines
1.4 KiB
PHP
<?php
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namespace Asset\Controller;
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use Think\Controller;
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class DownloadController extends Controller {
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//文件下载
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function index(){
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header("Content-type:text/html;charset=utf-8");
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$unique_id = trim($_GET['key']); //获取唯一码
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$asset = M('Asset');
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$line = $asset->where(array('unique'=>$unique_id))->find();
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//print_r($line); die;
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$rel_name = $line['filename'];
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if(!$rel_name){
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$this->error('未知错误！');
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}
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$file = $line['filepath'].$line['filename'];
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//用以解决中文不能显示出来的问题
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$file=iconv("utf-8","gb2312",$file);
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//首先要判断给定的文件存在与否
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if(!file_exists($file)){
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$this->error("没有该文件文件");
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}
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$fp=fopen($file,"r");
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$file_size=filesize($file);
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//下载文件需要用到的头
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Header("Content-type: application/octet-stream");
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Header("Accept-Ranges: bytes");
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Header("Accept-Length:".$file_size);
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Header("Content-Disposition: attachment; filename=".$rel_name);
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$buffer=1024;
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$file_count=0;
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//向浏览器返回数据
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while(!feof($fp) && $file_count<$file_size){
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$file_con=fread($fp,$buffer);
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$file_count+=$buffer;
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echo $file_con;
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}
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//写入数据库
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$asset->where("_unique='$unique_id'")->setInc('download_times',1);
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fclose($fp);
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}
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}
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