` ~~~ <?php // +---------------------------------------------------------------------- // | Created by PHPstorm: JRKAdmin框架 [ JRKAdmin ] // +---------------------------------------------------------------------- // | Copyright (c) 2019~2022 [LuckyHHY] All rights reserved. // +---------------------------------------------------------------------- // | SiteUrl: http://www.luckyhhy.cn // +---------------------------------------------------------------------- // | Author: LuckyHhy <jackhhy520@qq.com> // +---------------------------------------------------------------------- // | Date: 2020/1/13-9:16 // +---------------------------------------------------------------------- // | Description: // +---------------------------------------------------------------------- namespace Jrk; class Zipdown { protected $datasec = array (); protected $ctrl_dir = array (); protected $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; protected $old_offset = 0; ///下面是Zip压缩方法 protected function unix2_dostime($unixtime = 0){ $timearray = ($unixtime == 0) ? getdate () : getdate($unixtime); if ($timearray ['year'] < 1980){ $timearray ['year'] = 1980; $timearray ['mon'] = 1; $timearray ['mday'] = 1; $timearray ['hours'] = 0; $timearray ['minutes'] = 0; $timearray ['seconds'] = 0; } return (($timearray ['year'] - 1980) << 25) | ($timearray ['mon'] << 21) | ($timearray ['mday'] << 16) | ($timearray ['hours'] << 11) | ($timearray ['minutes'] << 5) | ($timearray ['seconds'] >> 1); } /** * @param $data * @param $name * @param int $time * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/1/13 * @name: add_file * @describe:压缩 */ public function add_file($data, $name, $time = 0){ $name = str_replace('\\', '/', $name); $dtime = dechex($this->unix2_dostime($time)); $hexdtime = '\x' . $dtime [6] . $dtime [7] . '\x' . $dtime [4] . $dtime [5] . '\x' . $dtime [2] . $dtime [3] . '\x' . $dtime [0] . $dtime [1]; eval('$hexdtime = "' . $hexdtime . '";'); $fr = "\x50\x4b\x03\x04"; $fr .= "\x14\x00"; $fr .= "\x00\x00"; $fr .= "\x08\x00"; $fr .= $hexdtime; $unc_len = strlen($data); $crc = crc32($data); $zdata = gzcompress($data); $zdata = substr(substr($zdata, 0, strlen($zdata)- 4), 2); $c_len = strlen($zdata); $fr .= pack('V', $crc); $fr .= pack('V', $c_len); $fr .= pack('V', $unc_len); $fr .= pack('v', strlen($name)); $fr .= pack('v', 0); $fr .= $name; $fr .= $zdata; $fr .= pack('V', $crc); $fr .= pack('V', $c_len); $fr .= pack('V', $unc_len); $this->datasec [] = $fr; $cdrec = "\x50\x4b\x01\x02"; $cdrec .= "\x00\x00"; $cdrec .= "\x14\x00"; $cdrec .= "\x00\x00"; $cdrec .= "\x08\x00"; $cdrec .= $hexdtime; $cdrec .= pack('V', $crc); $cdrec .= pack('V', $c_len); $cdrec .= pack('V', $unc_len); $cdrec .= pack('v', strlen($name)); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('v', 0); $cdrec .= pack('V', 32); $cdrec .= pack('V', $this->old_offset); $this->old_offset += strlen($fr); $cdrec .= $name; $this->ctrl_dir[] = $cdrec; } /** * @param $path * @param int $l * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/1/13 * @name: add_path * @describe: */ public function add_path($path, $l = 0){ $d = @opendir($path); $l = $l > 0 ? $l : strlen($path) + 1; while($v = @readdir($d)){ if($v == '.' || $v == '..'){ continue; } $v = $path . '/' . $v; if(is_dir($v)){ $this->add_path($v, $l); } else { $this->add_file(file_get_contents($v), substr($v, $l)); } } } /** * @return string * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/1/13 * @name: file * @describe: */ public function file(){ $data = implode('', $this->datasec); $ctrldir = implode('', $this->ctrl_dir); return $data . $ctrldir . $this->eof_ctrl_dir . pack('v', sizeof($this->ctrl_dir)) . pack('v', sizeof($this->ctrl_dir)) . pack('V', strlen($ctrldir)) . pack('V', strlen($data)) . "\x00\x00"; } /** * @param $files * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/1/13 * @name: add_files * @describe:添加文件 */ public function add_files($files){ foreach($files as $file){ if (is_file($file)){ $data = implode("", file($file)); $this->add_file($data, $file); } } } /** * @param $file * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/1/13 * @name: output * @describe: */ public function output($file){ $fp = fopen($file, "w"); fwrite($fp, $this->file ()); fclose($fp); } } ~~~ ` > 使用实例 ` ~~~ /** * @throws \think\db\exception\DataNotFoundException * @throws \think\db\exception\ModelNotFoundException * @throws \think\exception\DbException * @author: LuckyHhy <jackhhy520@qq.com> * @date: 2020/2/29 0029 * @name: downFiles * @describe：打包下载 */ public function downFiles(){ $ids=$this->request->param("ids"); try{ $data=db("upload")->where("id",'in',$ids)->select(); $down=new Zipdown(); //实例化下载类 //下面是实例操作过程： //产生一个临时文件，用于缓存下载文件，这个目录不一定为空，查找php.ini 搜索upload_tmp_dir 填写相对于的路径就行 $dfile = tempnam('/', 'tmp'); $filename = date ( 'YmdHis' ) . ".zip"; // 最终生成的文件名（含路径） //p($picarray);die; foreach($data as $val){ $down->add_file(file_get_contents(ROOT_PATH.'public'.$val['file_path']), iconv('UTF-8','gbk',$val['filename'])); } $down->output($dfile); ob_clean(); header('Pragma: public'); header('Last-Modified:'.gmdate('D, d M Y H:i:s') . 'GMT'); header('Cache-Control:no-store, no-cache, must-revalidate'); header('Cache-Control:pre-check=0, post-check=0, max-age=0'); header('Content-Transfer-Encoding:binary'); header('Content-Encoding:none'); header('Content-type:multipart/form-data'); header('Content-Disposition:attachment; filename="'.$filename.'"'); //设置下载的默认文件名 header('Content-length:'. filesize($dfile)); $fp = fopen($dfile, 'r'); while(connection_status() == 0 && $buf = @fread($fp, 8192)){ echo $buf; } fclose($fp); @unlink($dfile); @flush(); @ob_flush(); ob_end_clean(); exit(); //打包下载结束 }catch (\Exception $exception){ $this->redirect(url('admin/upload/index')); } } ~~~ `