php下载文件实例

//excel模板下载public function excelDownload(){    $excelPath = APPLICATION_ROOT . '/document/';    $fileName  = "邮件玩家奖励信息表";    $file_name = iconv("utf-8", "gb2312", $fileName);    $file_path = $excelPath . $fileName . '.xlsx';    $fp        = fopen($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=" . $file_name . '.xlsx');    readfile($file_path);    fclose($fp);}