php ZipArchive壓縮函數詳解執行個體_php執行個體

用ZipArchive壓縮檔，這個是php的擴充類，自php5.2版本以後就已經支援這個擴充，如果你在使用的時候出現錯誤，查看下php.ini裡面的extension=php_zip.dll前面的分號有沒有去掉，然後再重啟Apache這樣才能使用這個類庫。
例1、產生zip 壓縮檔

複製代碼 代碼如下:

<?php
/* 產生zip 壓縮檔 */
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,$file_info_arr['basename']);//去掉層級目錄
        }
        //debug
        //echo 'The zip archive contains ',$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__ )); //網站路徑

$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 、壓縮檔夾下面的所有文

複製代碼 代碼如下:

<?php
/*
php zip壓縮檔夾下面的所有檔案
*/
class HZip
{
  /**
   * 添加檔案和子目錄的檔案到zip檔案
   * @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)) {
          // 添加子檔案夾
          $zipFile->addEmptyDir($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;//防止傳遞'folder' 檔案夾產生bug
    $z = new ZipArchive();
    $z->open($outZipPath, ZIPARCHIVE::CREATE);//建立zip檔案
    $z->addEmptyDir($dirName);//建立檔案夾
    self::folderToZip($sourcePath, $z, strlen("$parentPath/"));
    $z->close();
  }
}

//使用方法
HZip::zipDir('yourlife', 'yourlife.zip');
?>
 

1.ZipArchive::addEmptyDir
添加一個新的檔案目錄
2.ZipArchive::addFile
將檔案添加到指定zip壓縮包中。
3.ZipArchive::addFromString
添加的檔案同時將內容添加進去
4.ZipArchive::close
關閉ziparchive
5.ZipArchive::extractTo
將壓縮包解壓
6.ZipArchive::open
開啟一個zip壓縮包
7.ZipArchive::getStatusString
返回壓縮時的狀態內容，包括錯誤資訊，壓縮資訊等等
8.ZipArchive::deleteIndex
刪除壓縮包中的某一個檔案，如：deleteIndex(0)刪除第一個檔案
9.ZipArchive::deleteName
刪除壓縮包中的某一個檔案名稱，同時也將檔案刪除。