php ZipArchive压缩函数详解实例_php实例

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

<?php <BR>/* 生成zip 压缩文件 */<BR>function create_zip($files = array(),$destination = '',$overwrite = false) { <BR>    //if the zip file already exists and overwrite is false, return false <BR>    if(file_exists($destination) && !$overwrite) { return false; } <BR>    //vars <BR>    $valid_files = array(); <BR>    //if files were passed in... <BR>    if(is_array($files)) { <BR>        //cycle through each file <BR>        foreach($files as $file) { <BR>            //make sure the file exists <BR>            if(file_exists($file)) { <BR>                $valid_files[] = $file; <BR>            } <BR>        } <BR>    } <BR>    //if we have good files... <BR>    if(count($valid_files)) { <BR>        //create the archive <BR>        $zip = new ZipArchive(); <BR>        if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) { <BR>            return false; <BR>        } <BR>        //add the files <BR>        foreach($valid_files as $file) { <BR>            $file_info_arr= pathinfo($file); <BR>            $zip->addFile($file,$file_info_arr['basename']);//去掉层级目录 <BR>        } <BR>        //debug <BR>        //echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status; <br><br>        //close the zip -- done! <BR>        $zip->close(); <br><br>        //check to make sure the file exists <BR>        return file_exists($destination); <BR>    } <BR>    else<BR>    { <BR>        return false; <BR>    } <BR>} <br><br>define('ROOTPATH',dirname ( __FILE__ )); //网站路径 <br><br>$files_to_zip = array( <BR>    ROOTPATH.DIRECTORY_SE<div style="color:transparent">本文来源gaodai.ma#com搞##代!^码@网*</div><pre>搞gaodaima代码

PARATOR.’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

<?php <BR>/* <BR>php zip压缩文件夹下面的所有文件 <BR>*/<BR>class HZip <BR>{ <BR>  /** <BR>   * 添加文件和子目录的文件到zip文件 <BR>   * @param string $folder <BR>   * @param ZipArchive $zipFile <BR>   * @param int $exclusiveLength Number of text to be exclusived from the file path. <BR>   */<BR>  private static function folderToZip($folder, &$zipFile, $exclusiveLength) { <BR>    $handle = opendir($folder); <BR>    while (false !== $f = readdir($handle)) { <BR>      if ($f != '.' && $f != '..') { <BR>        $filePath = "$folder/$f"; <BR>        // Remove prefix from file path before add to zip. <BR>        $localPath = substr($filePath, $exclusiveLength); <BR>        if (is_file($filePath)) { <BR>          $zipFile->addFile($filePath, $localPath); <BR>        } elseif (is_dir($filePath)) { <BR>          // 添加子文件夹 <BR>          $zipFile->addEmptyDir($localPath); <BR>          self::folderToZip($filePath, $zipFile, $exclusiveLength); <BR>        } <BR>      } <BR>    } <BR>    closedir($handle); <BR>  } <br><br>  /** <BR>   * Zip a folder (include itself). <BR>   * Usage: <BR>   *   HZip::zipDir('/path/to/sourceDir', '/path/to/out.zip'); <BR>   * <BR>   * @param string $sourcePath Path of directory to be zip. <BR>   * @param string $outZipPath Path of output zip file. <BR>   */<BR>  public static function zipDir($sourcePath, $outZipPath) <BR>  { <BR>    $pathInfo = pathInfo($sourcePath); <BR>    $parentPath = $pathInfo['dirname']; <BR>    $dirName = $pathInfo['basename']; <BR>    $sourcePath=$parentPath.'/'.$dirName;//防止传递'folder' 文件夹产生bug <BR>    $z = new ZipArchive(); <BR>    $z->open($outZipPath, ZIPARCHIVE::CREATE);//建立zip文件 <BR>    $z->addEmptyDir($dirName);//建立文件夹 <BR>    self::folderToZip($sourcePath, $z, strlen("$parentPath/")); <BR>    $z->close(); <BR>  } <BR>} <br><br>//使用方法 <BR>HZip::zipDir('yourlife', 'yourlife.zip'); <BR>?><BR> 

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。

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