PHP生成ZIP压缩文件

小灰灰 2022-03-30 08:38 299阅读 0赞

PHP生成ZIP压缩文件

/*
     * 生成zip压缩文件
     * $sourceDir:被压缩的文件夹或文件
     * $outFileName:输出的压缩文件名称
     * */
    function createZipResources($sourceDir, $outFileName = '', $filesName)
    {
        if ($outFileName == '') {
            $outFileName = time().'.zip';
        } else {
            $outFileName = $outFileName.'.zip';
        }
    
        $fileNames = [];
    
        //判断需要被压缩的目标是文件还是文件夹
        if (is_file($sourceDir)) {
            $fileNames['file'][basename($sourceDir)] = $sourceDir;
        } else {
            $fileNames = read_all_dir($sourceDir);
        }
    
        if (!array_key_exists('file', $fileNames) && !array_key_exists('dir', $fileNames)) {
            $fileNames['dir'][basename($sourceDir)] = [];
        }
    
        // 生成文件
        $zip = new ZipArchive (); // 使用本类，linux需开启zlib，windows需取消php_zip.dll前的注释
        if ($zip->open ($outFileName, ZIPARCHIVE::CREATE ) !== TRUE) {
            exit ( '无法打开文件，或者文件创建失败' );
        }
        $fileNameArr = $fileNames;
        $toFolderZip = function ($fileNameArr, &$zip, $base = '') use (&$toFolderZip) {
            foreach ( $fileNameArr as $key => $value ) {
                if ($key == 'file') {
                    foreach ($value as $fileName => $filePath) {
                        $fileName = urldecode($fileName);
                        if ($base == '') {
                            $zip->addFile($filePath, $fileName);
                        } else {
                            $zip->addFile($filePath, $base.'/'.$fileName);
                        }
    
                    }
                }
    
                if ($key == 'dir') {
                    foreach ($value as $folderName => $folderObject) {
                        $folderName = urldecode($folderName);
                        if ($base == '') {
                            $zip->addEmptyDir($folderName);
                            $based = $folderName;
                        } else {
                            $based = $base.'/'.$folderName;
                            $zip->addEmptyDir($based);
                        }
                        $toFolderZip($folderObject, $zip, $based);
                    }
                }
    
            }
        };
        $toFolderZip($fileNameArr, $zip);
        $zip->close(); // 关闭
        header("Cache-Control: public");
        header("Content-Description: File Transfer");
        header('Content-disposition: attachment; filename='.$filesName.'.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($outFileName)); //告诉浏览器，文件大小
        return @readfile($outFileName);
        //return ['status'=>'YES', 'info' => '压缩完成'];
    }