[php]
<?php
//下载文件
function download_file($file){
if(is_file($file)){
$length = filesize($file);
$type = mime_content_type($file);
$showname = ltrim(strrchr($file,'/'),'/');
header("Content-Description: File Transfer");
header('Content-type: ' . $type);
header('Content-Length:' . $length);
if (preg_match('/MSIE/', $_SERVER['HTTP_USER_AGENT'])) { //for IE
header('Content-Disposition: attachment; filename="' . rawurlencode($showname) . '"');
} else {
header('Content-Disposition: attachment; filename="' . $showname . '"');
}
readfile($file);
exit;
} else {
exit('文件已被删除！');
}
}
?>
[/php]
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