function download($file_sub_path, $file_name) { //用以解决中文不能显示出来的问题 //$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("'", "", $file_path); //首先要判断给定的文件存在与否 if (!file_exists($file_path)) { echo "没有该文件"; return; } $fp = fopen($file_path, "r"); $file_size = filesize($file_path); //下载文件需要用到的头 Header("Content-type: application/octet-stream"); Header("Accept-Ranges: bytes"); Header("Accept-Length:" . $file_size); Header("Content-Disposition: attachment; filename=" . $file_name); $buffer = 1024; $file_count = 0; //一下两行防止(格式未知 数据已被损坏) ob_clean(); flush(); //向浏览器返回数据 while (!feof($fp) && $file_count < $file_size) { $file_con = fread($fp, $buffer); $file_count += $buffer; echo $file_con; } fclose($fp); }