Detailed example of php ZipArchive compression function

Detailed example of php ZipArchive compression function_PHP tutorial

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Release： 2016-07-13 10:25:27

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Use ZipArchive to compress files. This is an extension class of php. This extension has been supported since php5.2. If you get an error when using it, check the extension=php_zip.dll in php.ini. Have you removed the semicolon before restarting Apache so that you can use this class library?
Example 1. Generate zip file

Copy the code The code is as follows:

/ * Generate zip file*/
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; ) {
//create the archive
$zip = new ZipArchive();
if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) ! == true) {
return false; $zip->addFile($file,$file_info_arr['basename']);//Remove the hierarchical directory
}
//debug
//echo 'The zip archive contains ',$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__ )); //Website path

$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);

Example 2, compress all files under the folder

Copy code

The code is as follows :

/*
php zip压缩文件夹下面的所有文件
*/
class HZip
{
/**
* Add files and subdirectories to the zip file
* @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。