1 <?php
 2 set_time_limit(0);  //大文件在讀取內容未結束時會被超時處理，導致下載文件不全。  
 3   
 4 $fpath = ‘book.zip‘;
 5 $file_pathinfo = pathinfo($fpath);  
 6 $file_name = $file_pathinfo[‘basename‘];  
 7 $file_extension = $file_pathinfo[‘extension‘];  
 8 $handle = fopen($fpath,"rb");  
 9 if (FALSE === $handle)  
10     exit
 
("Failed to open the file");  
11 $filesize = filesize($fpath);  
12   
13 header("Content-type:video/mpeg4");//更具不同的文件類型設置header輸出類型  
14 header("Accept-Ranges:bytes");  
15 header("Accept-Length:".$filesize);  
16 header("Content-Disposition: attachment; filename=".$file_name);  
17   
18 $contents = ‘‘;  
 
19 while (!feof($handle)) {  
20     $contents = fread($handle, 8192);  
21     echo $contents;  
22     @ob_flush();  //把數據從PHP的緩沖中釋放出來  
23     flush();      //把被釋放出來的數據發送到瀏覽器
24 }  
25 fclose($handle);  
26 exit;

PHP處理大文件下載