//遠程路徑，名稱，文件后綴function downImgRar($url,$rename,$ext){  switch ($ext) {    case 'jpg':    //下載圖片      $file_path = 'uploads/images/';            break;    case 'png':    //下載圖片      $file_path = 'uploads/images/';            break;    case 'pdf':    //下載PDF      $file_path = 'uploads/pdf/';        break;    case 'rar':    //下載壓縮包      $file_path = 'uploads/rar/';            break;    case 'zip':    //下載壓縮包      $file_path = 'uploads/rar/';            break;    default:      $file_path = 'uploads/files/';          break;  }  $ch = curl_init($url);  curl_setopt($ch, CURLOPT_HEADER, 0);  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);  $rawdata=curl_exec ($ch);  curl_close ($ch);  // 使用中文文件名需要轉碼  $fp = fopen($file_path.iconv('UTF-8', 'GBK', $rename).".".$ext,'w');  fwrite($fp, $rawdata);  fclose($fp);  // 返回路徑  return $_SERVER['DOCUMENT_ROOT'].$file_path.$rename.".".$ext;}

// 下載壓縮包function downRar($file_path){  $file_name = '/uploads/rar/2009323162920-維C銀翹片說明書.rar';  $file_name = iconv("utf-8","gbk//IGNORE",$file_name); // 特別注意！特別注意！特別注意這里，windows下必須開轉碼,不然直接文件不存  $file_path = $_SERVER['DOCUMENT_ROOT'] . $file_name;// 比如windows下這里我的是 "D:/web/public/uploads/rar/2009323162920-維C銀翹片說明書.rar"  //判斷如果文件存在,則跳轉到下載路徑  if (!file_exists($file_path)) {    die("文件不存在!");  }  $fp = fopen($file_path, "r+") or die('打開文件錯誤');  //下載文件必須要將文件先打開。寫入內存  $file_size = filesize($file_path);  //返回的文件流  Header("Content-type:application/octet-stream");  //按照字節格式返回  Header("Accept-Ranges:bytes");  //返回文件大小  Header("Accept-Length:" . $file_size);  //彈出客戶端對話框，對應的文件名  Header("Content-Disposition:attachment;filename=" . substr($file_name, strrpos($file_name, '/') + 1));  //防止服務器瞬間壓力增大，分段讀取  $buffer = 1024;  while (!feof($fp)) {    $file_data = fread($fp, $buffer);    echo $file_data;  }  fclose($fp);  die("下載成功!");}