PHP力下載可以下載

Question

我想實現的PHP力的下載和使用下面

$length = sprintf("%u", filesize($path)); 
header('Content-Description: File Transfer'); 
header('Content-Type: application/octet-stream'); 
header('Content-Disposition: attachment; filename="'.basename($path).'"'); 
header('Content-Transfer-Encoding: binary'); 
header('Connection: Keep-Alive'); 
header('Expires: 0'); 
header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); 
header('Pragma: public'); 
header('Content-Length: ' . $length); 
set_time_limit(0); 
readfile($path); 
exit; 

代碼中的文件與全尺寸成功下載（我打開記事本文件++後沒有打開的文件，沒有PHP錯誤或警告），但我無法打開文件。奇怪的是我可以下載並打開任何問題的PDF文件。但是如docx，png，jpg等格式的文件被提取

Answer 1

嘗試暫時刪除您的內容長度標頭，它可能是錯誤的並導致文件不完整地下載（可能是一個字節）。另外嘗試設置您的到期時間高於0;我在IE中看到了由此造成的錯誤，因爲在外部程序有時間加載之前，瀏覽器正在從緩存中刪除文件。

Answer 2

時使用此武力下載

header("Cache-Control: maxage=1"); 
header("Pragma: public"); 
header("Content-type: application/force-download"); 
header("Content-Transfer-Encoding: Binary"); 
header("Content-length: ".filesize($path)); 
header("Content-disposition: attachment; filename=\"".basename($path)."\""); 

Answer 3

我認爲你應該使用正確的內容類型

下面是內容類型的列表： http://www.freeformatter.com/mime-types-list.html

Answer 4

試試這個代碼

$file = "xyz.html" 
header('Content-Description: File Transfer'); 
header('Content-Type: application/octet-stream'); 
header('Content-Disposition: attachment; filename='.basename($file)); 
header('Content-Transfer-Encoding: binary'); 
readfile($file); 

Answer 5

$file=FCPATH."downloaded/1462026746_IMG_2015.JPG"; //file location 
     if(file_exists($file)) { 

     header('Content-Description: File Transfer'); 
     header('Content-Type: application/octet-stream'); 
     header('Content-Disposition: attachment; filename='.basename($file)); 
     header('Content-Transfer-Encoding: binary'); 
     header('Expires: 0'); 
     header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); 
     header('Pragma: public'); 
     header('Content-Length: ' . filesize($file)); 
     ob_clean(); 
     flush(); 
     readfile($file); 
     exit; 
     } 
     else { 
      die('The provided file path is not valid.'); 
     }