PHP实现文件夹压缩、解压及zip文件在服务器之间的传输

如果有两个项目分布在两台服务器上，并且需要经常的传递文件夹或者文件，那么就需要考虑将文件夹或者大文件压缩后进行传输。

压缩与解压代码如下：

    public static function zipFolder($sourcePath, $outZipPath)    {        $parentPath = rtrim(substr($sourcePath, 0, strrpos($sourcePath, '/')),"/")."/";        $dirName = ltrim(substr($sourcePath, strrpos($sourcePath, '/')),"/");        $sourcePath=$parentPath.'/'.$dirName;//防止传递'folder'文件夹产生bug        $z = new \ZipArchive();        $z->open($outZipPath, \ZIPARCHIVE::CREATE);//建立zip文件        $z->addEmptyDir($dirName);//建立文件夹        self::folderToZip($sourcePath, $z, strlen("$parentPath/"));        $z->close();        return $outZipPath;    }    private static function folderToZip($folder, &$zipFile, $exclusiveLength) {        $handle = opendir($folder);        while (false !== $f = readdir($handle)) {            if ($f != '.' && $f != '..') {                $filePath = "$folder/$f";                // 在添加到zip之前从文件路径中删除前缀                $localPath = substr($filePath, $exclusiveLength);                if (is_file($filePath)) {                    $zipFile->addFile($filePath, $localPath);                } elseif (is_dir($filePath)) {                    // 添加子文件夹                    $zipFile->addEmptyDir($localPath);                    self::folderToZip($filePath, $zipFile, $exclusiveLength);                }            }        }        closedir($handle);    }    public static function unzipFile($zipFileName, $unzipPath)    {        $zip = new \ZipArchive;        if ($zip->open($zipFileName) === true) {            if(!file_exists($unzipPath))                @mkdir($unzipPath);            //将压缩包文件解压到test目录下            $zip->extractTo($unzipPath);            // 关闭zip            $zip->close();            return true;        }else{            return false;        }    }

假如有两个服务器A/B，A服务器我们称之为本地，B服务器称之为远端。文件的传输由A服务器主动出阿发，这就可以看为：A服务器（本地）上传文件到B服务器（远端），A服务器（本地）从B服务器（远端）下载文件。

在A服务器（本地）中项目代码可以这么写：

//从本地服务器传输到远端服务器public static function localToRemote($localDir, $remoteDir)    {        ini_set('max_execution_time', '0');        $start = time();        //本地 -> 远程        $url = '远端接收文件的接口地址';        //若是文件夹，压缩成zip  传输完成，删除本地zip        if(is_dir($localDir)){            $filePath = self::zipFolder($localDir, 'zip文件名称.zip');            $isDir = true;        }elseif(is_file($localDir)){ //若是文件，直接传到远程            $filePath = $localDir;            $isDir = false;        }else{            return ['result' => false, 'msg' => '文件|文件夹路径错误'];        }        $response = self::postRequest($url, [            'action' => 'upload_file',            'file_path' => $filePath,            'is_dir' => $isDir,            'destination' => $remoteDir, //目的文件夹        ]);        $responseArr = json_decode($response, true);        //传输成功        if(isset($responseArr['result']) && $responseArr['result']){            //若存在zip文件，删除            if($isDir){                unlink($filePath);            }            $elapsedTime = time() - $start;            return ['result' => true, 'msg' => 'success', 'elapsed_time' => $elapsedTime];        }else{ //传输失败            return ['result' => false, 'msg' => $responseArr['msg'] ?? 'fail'];        }    }public static function postRequest($url, $data)    {        if(!is_array($data)){            return false;        }        //传输文件，必传file_path        if(isset($data['file_path'])){            $data['file'] = new \CURLFile($data['file_path']);            unset($data['file_path']);        }        $ch = curl_init();        curl_setopt($ch , CURLOPT_URL , $url);        curl_setopt($ch , CURLOPT_RETURNTRANSFER, 1);        curl_setopt($ch , CURLOPT_POST, 1);        curl_setopt($ch , CURLOPT_CONNECTTIMEOUT, 10); //如果服务器10秒内没有响应，就会断开连接        curl_setopt($ch , CURLOPT_TIMEOUT, 300); //若传输5分钟内还没有下载完成，将会断开连接        curl_setopt($ch , CURLOPT_POSTFIELDS, $data);        $output = curl_exec($ch);        curl_close($ch);        return $output;    }//从远端服务器传输文件到本地服务器（从远端下载）public static function remoteToLocal($localDir, $remoteDir)    {        ini_set('max_execution_time', '0');        $start = time();        //远程 -> 本地   只可以是zip文件，保证传输文件最小        $url = '远端发送文件的接口地址';        $filePath = 'zip文件名称.zip';        self::downloadFile($url, [            'action' => 'download_file',            'file_path' => $remoteDir //文件名称 或 文件夹目录        ], $filePath);        if(is_file($filePath)){            $unzipResult = self::unzipFile($filePath, dirname($localDir));            if($unzipResult){                //解压成功 删除zip文件                unlink($filePath);                $elapsedTime = time() - $start;                return ['result' => true, 'msg' => 'success', 'elapsed_time' => $elapsedTime];            }else{                return ['result' => false, 'msg' => 'File decompression failure'];            }        }else{            return ['result' => false, 'msg' => '文件传输失败'];        }    }    public static function downloadFile($url, $data, $filePath)    {        //初始化        $curl = curl_init();        //设置抓取的url        curl_setopt($curl, CURLOPT_URL, $url);        curl_setopt($curl , CURLOPT_RETURNTRANSFER, 1);        curl_setopt($curl , CURLOPT_POST, 1);        curl_setopt($curl , CURLOPT_POSTFIELDS, $data);        //打开文件描述符        $fp = fopen ($filePath, 'w+');        curl_setopt($curl, CURLOPT_FILE, $fp);        //这个选项是意思是跳转，如果你访问的页面跳转到另一个页面，也会模拟访问。        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);        curl_setopt($curl,CURLOPT_TIMEOUT,50);        //执行命令        curl_exec($curl);        //关闭URL请求        curl_close($curl);        //关闭文件描述符        fclose($fp);        return true;    }

B服务器（远端）上的接口代码示例：（需要结合A服务器上的代码来看）

$action = $_POST['action'];if ($action == 'upload_file') { //A -> B            if(isset($_FILES['file']['tmp_name'])){                if($_POST['is_dir']){                    $destinationPath = dirname($_POST['destination']);                    if(!file_exists($destinationPath)){                        @mkdir($destinationPath);                    }                    $file = $destinationPath . '/' . date("YmdHis") . rand(10000,99999) . 'file.zip';                    copy($_FILES['file']['tmp_name'], $file);                    $unzipResult = unzipFile($file, $destinationPath);                    if($unzipResult){                        unlink($file);                    }else{                        return ['result' => false, 'msg' => 'File decompression failure'];                    }                }else{                    copy($_FILES['file']['tmp_name'], $_POST['destination']);                }                return ['result' => true, 'msg' => 'success'];            }else{                return ['result' => false, 'msg' => 'File receiving failure'];            }        } elseif ($action == 'download_file') { //B -> A            $randomName = date("YmdHis") . rand(10000,99999);            $zipFileName = dirname($_POST['file_path']) . '/' . $randomName . 'file.zip';            $filePath = zipFolder($_POST['file_path'], $zipFileName);            $fileName = basename($filePath);            header("Content-Type: application/zip");            header("Content-Disposition: attachment; filename=$fileName");            header("Content-Length: " . filesize($filePath));            readfile($filePath);            unlink($filePath);            exit;        }

来源地址：https://blog.csdn.net/qq_32737755/article/details/128814649