Implementation code for php to force download of mp3 files

Some files such as mp3 are usually played or used directly in the client browser. If you want them to be forced to download, that's no problem. The code introduced in this article can help you implement it.

The code is as follows:

<?php
/**
 * 强制文件下载
 * by http://bbs.it-home.org
*/
function downloadFile($file){ 
    $file_name = $file; 
    $mime = 'application/force-download'; 
    header('Pragma: public');     // required 
    header('Expires: 0');        // no cache 
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); 
    header('Cache-Control: private',false); 
    header('Content-Type: '.$mime); 
    header('Content-Disposition: attachment; filename="'.basename($file_name).'"'); 
    header('Content-Transfer-Encoding: binary'); 
    header('Connection: close'); 
    readfile($file_name);        // push it out 
    exit(); 
}
?>

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