function download($file_sub_path, $file_name)
{
//用以解決中文不能顯示出來的問題
//$file_name=iconv("utf-8","gb2312",$file_name);
$file_sub_path = $file_sub_path;
$file_path = $file_sub_path . $file_name;
$file_path = str_replace("'", "", $file_path);
//首先要判斷給定的文件存在與否
if (!file_exists($file_path)) {
echo "沒有該文件";
return;
}
$fp = fopen($file_path, "r");
$file_size = filesize($file_path);
//下載文件需要用到的頭
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length:" . $file_size);
Header("Content-Disposition: attachment; filename=" . $file_name);
$buffer = 1024;
$file_count = 0;
//一下兩行防止(格式未知 數(shù)據(jù)已被損壞)
ob_clean();
flush();
//向?yàn)g覽器返回數(shù)據(jù)
while (!feof($fp) && $file_count < $file_size) {
$file_con = fread($fp, $buffer);
$file_count += $buffer;
echo $file_con;
}
fclose($fp);
}