PHP写下载程序
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<?php
$path = '1.rar';
$extension = getFileExt($f);
switch ($extension){
case "jpg":
case "jpeg": $ctype="image/jpeg"; break;
case "pdf": $ctype="application/pdf"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "doc": $ctype="application/msword"; break;
case "zip": $ctype="application/zip";break;
case "rar": $ctype="application/rar"; break;
default: $ctype="application/force-download";
}
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Content-type: ". $ctype);
header("Content-Transfer-Encoding: binary");
header("Content-Length: ". filesize($path));
header('Content-Disposition: attachment; filename="100.jpg" ;');
readfile(
$path
); // 这个 path 是真是路劲，类似：c:\1.jpg
function getFileExt($file_name){
$extend = explode("." , $file_name);
$type = $extend[count($extend)-1];
return strtolower($type);
}
?>
