PHP实现打包下载文件的方法示例

本文实例讲述了PHP实现打包下载文件的方法。分享给大家供大家参考，具体如下：

/**

• 下载文件
• @param $img
• @return string */

public function Download($img) { $items = []; $names = []; if($img) { //用于前端跳转zip链接拼接 $path_redirect = '/zip/'.date('Ymd'); //临时文件存储地址 $path = '/tmp'.$path_redirect; if(!is_dir($path)) { mkdir($path, 0777,true); } foreach ($img as $key => $value) { $fileContent = ''; $fileContent = $this->CurlDownload($value['url']); if( $fileContent ) { $__tmp = $this->SaveFile( $value['url'] , $path , $fileContent ); $items[] = $__tmp[0]; $names[] = $value['name'].'_'.($key+1).'.'.$__tmp[1]; } } if( $items ) { $zip = new ZipArchive(); /【要记得博客地址www.isres.com】/ $filename = time().'download.zip'; $zipname = $path.'/'.$filename; if (!file_exists($zipname)) { $res = $zip->open($zipname, ZipArchive::CREATE | ZipArchive::OVERWRITE); if ($res) { foreach ($items as $k => $v) { $value = explode("/", $v); $end = end($value); $zip->addFile($v, $end); $zip->renameName($end, $names[$k]); } $zip->close(); } else { return ''; } //通过前端js跳转zip地址下载,让不使用php代码下载zip文件 //if (file_exists($zipname)) { //拼接附件地址 //$redirect = 域名.$path_redirect.'/'.$filename; //return $redirect; //header("Location:".$redirect); //} //直接写文件的方式下载到客户端 if (file_exists($zipname)) { header("Cache-Control: public"); header("Content-Description: File Transfer"); header('Content-disposition: attachment; filename=附件.zip'); //文件名 header("Content-Type: application/zip"); //zip格式的 header("Content-Transfer-Encoding: binary"); //告诉浏览器，这是二进制文件 header('Content-Length: ' . filesize($zipname)); //告诉浏览器，文件大小 @readfile($zipname); } //删除临时文件 @unlink($zipname); } } return ''; } } /**

• curl获取链接内容
• @param $url
• @return mixed|string */

public function CurlDownload($url) { $ch = curl_init($url); curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); $errno = curl_errno($ch); $error = curl_error($ch); $res=curl_exec($ch); curl_close($ch/【当下浏览的服务器和开发工具是哪些】/); if($errno>0){ return ''; } return $res; } /**

• 保存临时文件
• @param $url
• @param $dir
• @param $content
• @return array */

public function SaveFile( $url ,$dir , $content) { $fname = basename($url); //返回路径中的文件名部分 $str_name = pathinfo($fname); //以数组的形式返回文件路径的信息 $extname = strtolower($str_name['extension']); //把扩展名转换成小写 $path = $dir.'/'.md5($url).$extname; $fp = fopen( $path ,'w+' ); fwrite( $fp , $content ); fclose($fp); return array( $path , $extname) ; }

引用：

$img = [['url'=>'地址url/1.jpg','name'=>'名字']]; Download($img);