錯誤：從服務器收到的重複標題

Question

鉻，歌劇，Safari瀏覽器中發生的發佈錯誤，只適用於Firefox。 這裏的標題：

| Header 
    | Forcing a download using readfile() 
    |---------------- 
    */ 

    header('Content-Description: File Transfer'); 
    header('Content-Type: ' . $file_mime_type); 
    header('Content-Disposition: attachment; filename=' . $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: ' . $file_size); 
    ob_clean(); 
    flush(); 
    readfile($file_path); 
    exit; 

我試圖把雙引號和作品，但增加了文件名稱 - 例如-'filename.pdf '

header("Content-Disposition: attachment; filename= . '$file'"); 

Answer 1

要解決問題，您需要

// Change this 
header('Content-Disposition: attachment; filename=' . $file); 

// To this 
header('Content-Disposition: attachment; filename="'.$file.'"');