php ZipArchive压缩函数详解实例
在php中生成zip文件我们只要使用一个php zip压缩ZipArchive函数就可以了,下面小编来给大家总结两个实现一个是利用ZipArchive生成zip,另一个压缩文件夹下所有文件.
用ZipArchive压缩文件,这个是php的扩展类,自php5.2版本以后就已经支持这个扩展,如果你在使用的时候出现错误,查看下php.ini里面的extension=php_zip.dll前面的分号有没有去掉,然后再重启Apache这样才能使用这个类库。
例1、生成zip 压缩文件,代码如下:
- /* 生成zip 压缩文件 */
- function create_zip($files = array(),$destination = '',$overwrite = false) {
- //if the zip file already exists and overwrite is false, return false
- if(file_exists($destination) && !$overwrite) { return false; }
- //vars
- $valid_files = array();
- //if files were passed in...
- if(is_array($files)) {
- //cycle through each file
- foreach($files as $file) {
- //make sure the file exists
- if(file_exists($file)) {
- $valid_files[] = $file;
- }
- }
- }
- //if we have good files...
- if(count($valid_files)) {
- //create the archive
- $zip = new ZipArchive();
- if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {
- return false;
- }
- //add the files
- foreach($valid_files as $file) {
- $file_info_arr= pathinfo($file);
- $zip->addFile($file,$file_info_arr['basename']);//去掉层级目录
- }
- //debug
- //echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status;
- //close the zip -- done!
- $zip->close();
- //check to make sure the file exists
- return file_exists($destination);
- }
- else
- {
- return false;
- }
- }
- define('ROOTPATH',dirname ( __FILE__ )); //网站路径
- $files_to_zip = array(
- ROOTPATH.DIRECTORY_SEPARATOR.'PHP+jQuery+Cookbook.pdf',
- ROOTPATH.DIRECTORY_SEPARATOR.'TurboListerZeroTemplate.csv'
- );
- //if true, good; if false, zip creation failed
- $filename='my-archive.zip';
- $result = create_zip($files_to_zip,$filename);
例2 、压缩文件夹下面的所有文件,代码如下:
- <?php
- /*
- php zip压缩文件夹下面的所有文件
- */
- class HZip
- {
- /**
- * 添加文件和子目录的文件到zip文件
- * @param string $folder
- * @param ZipArchive $zipFile
- * @param int $exclusiveLength Number of text to be exclusived from the file path.
- */
- private static function folderToZip($folder, &$zipFile, $exclusiveLength) {
- $handle = opendir($folder);
- while (false !== $f = readdir($handle)) {
- if ($f != '.' && $f != '..') {
- $filePath = "$folder/$f";
- // Remove prefix from file path before add to zip.
- $localPath = substr($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);
- }
- /**
- * Zip a folder (include itself).
- * Usage:
- * HZip::zipDir('/path/to/sourceDir', '/path/to/out.zip');
- *
- * @param string $sourcePath Path of directory to be zip.
- * @param string $outZipPath Path of output zip file.
- */
- public static function zipDir($sourcePath, $outZipPath)
- {
- $pathInfo = pathInfo($sourcePath);
- $parentPath = $pathInfo['dirname'];
- $dirName = $pathInfo['basename'];
- $sourcePath=$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();
- }
- }
- //使用方法
- HZip::zipDir('yourlife', 'yourlife.zip');
- ?>
1.ZipArchive::addEmptyDir
添加一个新的文件目录
2.ZipArchive::addFile
将文件添加到指定zip压缩包中。
3.ZipArchive::addFromString
添加的文件同时将内容添加进去
4.ZipArchive::close
关闭ziparchive
5.ZipArchive::extractTo
将压缩包解压
6.ZipArchive::open
打开一个zip压缩包
7.ZipArchive::getStatusString
返回压缩时的状态内容,包括错误信息,压缩信息等等
8.ZipArchive::deleteIndex
删除压缩包中的某一个文件,如:deleteIndex(0)删除第一个文件
9.ZipArchive::deleteName
删除压缩包中的某一个文件名称,同时也将文件删除。