PHP大文件下载

浏览数：31 / 时间：2015年06月09日

文件大于1GB

{       
         
         //Big File
         $file 
= $identity 
. ".cleanpdb.tar.gz";
         $path 
= $webdatapath 
. "seq/" . $file;
         
         if(!file_exists($path))
         {
                 echo 
"Sorry" . ‘<br>‘;
                 echo 
$file . " not exist";
                 return 
false;
         }
                 
                 
         header("Content-type: "."application/gz");
         header(‘Content-Disposition: attachment; filename="‘.basename($path));
         
         header("Cache-control: public");
         header("Pragma: public");
         header("Content-Length: ".filesize($path));
         ob_end_clean();
         
         $fp 
= fopen($path,‘r‘);
         $file_size 
= filesize($path);
         $buffer=1024;
         $cur_size=0;
         while(!feof($fp) && $file_size>$buffer+$cur_size) {
                 $file_data 
= fread($fp, $buffer);
                 echo 
$file_data;
                 $cur_size 
+= $buffer;
         }
         $file_data 
= fread($fp, $file_size-$cur_size);
         echo 
$file_data;
         fclose($fp);
         
 
 }   