在php下載pdf的文件代碼

Question

$path = BASE_URL."/pdf/"; 
$filename= $path.basename($_GET['download_file']); 

header("Cache-Control: public"); 
header("Content-Description: File Transfer"); 
header('Content-disposition: attachment; 
filename='.basename($filename)); 
header("Content-Type: application/pdf"); 
header("Content-Transfer-Encoding: binary"); 
header('Content-Length: '. filesize($filename)); 
readfile($filename); 
exit; 

這段代碼有效，但是我在打開下載的pdf時收到了Error in reading pdf file。在上面的代碼中，我得到的位置http://localhost//eec//pdf/CV_Prabin Mishra.pdf

Answer 1

BASE_URL有可能在最後一個斜槓的文件，這樣你就不會需要額外的一個：

$path = BASE_URL."pdf/"; 

Answer 2

我看不出你曾經設置$ filename的值，你在$ fullPath中設置PDF的位置，然後用$ filename讀出它。我認爲代碼應該是

$path = BASE_URL."/pdf/"; 
$fullPath = $path.basename($_GET['download_file']); 

header("Cache-Control: public"); 
header("Content-Description: File Transfer"); 
header('Content-disposition: attachment; 
filename='.basename($fullPath)); 
header("Content-Type: application/pdf"); 
header("Content-Transfer-Encoding: binary"); 
header('Content-Length: '. filesize($fullPath)); 
readfile($fullPath); 
exit;