我正在尝试创建一个备份类，其主要目标是自定义类调用，以便根据用户选择仅对特定扩展，特定文件大小或主目录中的特定目录过滤最终备份
目前，该类缺乏压缩算法，因为我一直坚持寻找有关.zip压缩的解决方案。
这是一个文件和文件夹结构的示例，该类将用于创建压缩存档（zip，rar，gz等）：
Array
(
[0] => pclzip.lib.php
[1] => index.php
[style] => Array
(
[js] => Array
(
[0] => jNice.js
[1] => jquery.js
)
[img] => Array
(
[0] => input-shaddow-hover.gif
[1] => btn_right.gif
[2] => top-menu-bg.gif
[3] => top-menu-item-bg.gif
[4] => left-menu-bg.gif
[5] => button-submit.gif
[6] => btn_left.gif
[7] => select_right.gif
[8] => select_left.gif
[9] => transdmin-light.png
[10] => content.gif
[11] => input-shaddow.gif
)
[css] => Array
(
[0] => transdmin.css
[1] => layout.css
[2] => ie7.css
[3] => hack.css
[4] => jNice.css
[5] => ie6.css
[6] => reset.css
)
)
[2] => config.php
[3] => delete.php
[4] => restore.php
[5] => cron.php
[6] => manage.php
)
正如您所看到的，文件和文件夹结构需要在备份文件中保留，因此要备份的文件和文件夹列表已经过结构化，这样如果一个数组叶子包含一个子数组，那么叶子就是一个目录，如果一个叶子不包含子数组，那么叶子就是一个文件。
这就是我为创建一个递归zip文件和文件夹的过程而来的，这些文件和文件夹（应该）适用于我之前提供的结构化数组：
private function zipFileAndFolderStructureArray ( $backupContentsArray, $zipDestination, $backupRootDirectory ) {
if ( $this -> zipObject == null ) {
if ( extension_loaded ( 'zip' ) === true ) {
$this -> zipObject = new ZipArchive();
if ( ( $zipErrorCode = $this -> zipObject -> open ( $zipDestination, ZipArchive::CREATE ) ) !== true ) $this -> zipObject = null;
else $this -> zipFileAndFolderStructureArray ( $backupContentsArray, $zipDestination, $backupRootDirectory );
}
}
else if ( $this -> zipObject != null ) {
foreach ( $backupContentsArray as $folder => $file_or_folder_list ) {
$cwd = rtrim ( $backupRootDirectory, '/' ) . '/' . $folder . '/';
if ( is_array ( $file_or_folder_list ) && is_dir ( $cwd . $folder ) ) {
echo 'adding folder ' . $folder . ' in cwd ' . $cwd . '<br>';
$this -> zipObject -> addEmptyDir ( $folder );
$this -> zipFileAndFolderStructureArray ( $file_or_folder_list, $zipDestination, $cwd );
}
else if ( is_file ( $cwd . $file_or_folder_list ) ) {
echo 'adding file ' . $file_or_folder_list . '<br>';
$this -> zipObject -> addFromString ( $cwd . $file_or_folder_list );
}
}
$this -> zipObject -> close ();
return true;
}
}
你能帮我弄清楚出了什么问题吗？
我可以用来将压缩功能扩展到RAR和GZ的可能类的提示，尽可能多地重用与ZIP压缩算法相同的压缩算法？
提前谢谢
P.S添加了创建文件夹和目录结构的当前函数
public function directory_list ( $directory_base_path, $filter_dir = false, $filter_files = false, $exclude_empty_dirs = true, $include_extensions = null, $exclude_extensions = null, $exclude_files = null, $recursive = true ) {
$directory_base_path = rtrim ($directory_base_path, "/" ) . "/";
if ( ! is_dir ( $directory_base_path ) ) return false;
$result_list = array();
if ( ! is_array ( $exclude_files ) ) $exclude_array = Array ( '.', '..' );
else $exclude_array = array_merge ( Array ( '.', '..' ), $exclude_files );
if ( ! $folder_handle = opendir ( $directory_base_path ) ) return false;
else{
while ( false !== ( $filename = readdir ( $folder_handle ) ) ) {
if ( ! in_array ( $filename, $exclude_array ) ) {
if ( is_dir ( $directory_base_path . $filename . "/" ) ) {
if ( $recursive && strcmp ( $filename, "." ) != 0 && strcmp ( $filename, ".." ) != 0 ) { // prevent infinite recursion
$result = self::directory_list("$directory_base_path$filename/", $filter_dir, $filter_files, $exclude_empty_dirs, $include_extensions, $exclude_extensions, $exclude_files, $recursive);
if ( $exclude_empty_dirs ) {
if ( count ( array_keys ( $result ) ) > 0 ) $result_list[$filename] = $result;
}
else $result_list[$filename] = $result;
}
else if ( ! $filter_dir ) $result_list[] = $filename;
}
else if ( ! $filter_files ) {
$extension = end ( explode ( '.', $filename ) );
if ( ! is_array ( $include_extensions ) && count ( $include_extensions ) == 0 && ! is_array ( $exclude_extensions ) && count ( $exclude_extensions ) == 0 ) if ( $filename != '.' && $filename != '..' ) $result_list[] = $filename;
if ( is_array ( $exclude_extensions ) && count ( $exclude_extensions ) > 0 && ! in_array ( $extension, $exclude_extensions ) ) $result_list[] = $filename;
else if ( is_array ( $include_extensions ) && count ( $include_extensions ) > 0 && strlen ( $extension ) > 0 && in_array ( $extension, $include_extensions ) ) $result_list[] = $filename;
}
}
}
closedir($folder_handle);
return $result_list;
}
}
答案 0 :(得分：1)
在对递归zip算法中的几乎所有内容进行调查和回应之后，发现文件夹结构很难处理，并且需要在路径中修复大量的斜杠。
这是同一个zipFileAndFolderStructureArray函数的固定版本
private function zipFileAndFolderStructureArray ( $backupContentsArray, $zipDestination, $backupRootDirectory, $currentWorkingDirectory = '' ) {
if ( $this -> zipObject == null ) {
if ( extension_loaded ( 'zip' ) === true ) {
$this -> zipObject = new ZipArchive();
if ( ( $zipErrorCode = $this -> zipObject -> open ( $zipDestination, ZipArchive::CREATE ) ) !== true ) $this -> zipObject = '#ERROR#';
else $this -> zipFileAndFolderStructureArray ( $backupContentsArray, $zipDestination, $backupRootDirectory );
}
}
else if ( $this -> zipObject == '#ERROR#' ) return false; // return false in case the zipArchive::open returned false on archive opening
else {
foreach ( $backupContentsArray as $folder => $file_or_folder_list ) {
if ( is_array ( $file_or_folder_list ) ) {
$current_working_folder = rtrim ( $currentWorkingDirectory, '/' ) . '/' . $folder . '/';
if ( is_dir ( $backupRootDirectory . $current_working_folder ) ) {
// not necessary to add an empty folder in this case: the addFile will take care of creating the folder structure in the zip file
$this -> zipFileAndFolderStructureArray ( $file_or_folder_list, $zipDestination, $backupRootDirectory, rtrim ( $current_working_folder, '/' ) );
}
}
else if ( is_file ( $backupRootDirectory . trim ( $currentWorkingDirectory, '/' ) . '/' . $file_or_folder_list ) ) {
$file_insertion = $backupRootDirectory . trim ( $currentWorkingDirectory, '/' ) . '/' . $file_or_folder_list;
$zip_filename = str_replace ( $backupRootDirectory, '', $file_insertion );
if ( substr_count ( $zip_filename, '/' ) == 1 ) $zip_filename = trim ( $zip_filename, '/' ); // file in backup root directory fix
$this -> zipObject -> addFile ( $file_insertion, $zip_filename );
}
}
return true;
}
}