PHP zip Compressed Package Operation Class Complete Instance
- 2021-10-24 19:06:44
- OfStack
This article describes the PHP zip compressed package operation class as an example. Share it for your reference, as follows:
<?php
/**
* Zip Package tool
*
* @author wengxianhu
* @date 2013-08-05
*/
class ZipFolder
{
protected $zip;
protected $root;
protected $ignored_names;
public function __construct(){
$this->zip = new ZipArchive;
}
/**
* Decompression zip File to the specified folder
*
* @access public
* @param string $zipfile Compressed file path
* @param string $path The destination path to which the compressed packet is decompressed
* @return booleam Successful decompression returns true Otherwise return false
*/
public function unzip ($zipfile, $path) {
if ($this->zip->open($zipfile) === true) {
$file_tmp = @fopen($zipfile, "rb");
$bin = fread($file_tmp, 15); // Read-only 15 Byte For different file types, header information does not 1 Sample.
fclose($file_tmp);
/* For only zip To process the compressed packet of */
if (true === $this->getTypeList($bin))
{
$result = $this->zip->extractTo($path);
$this->zip->close();
return $result;
}
else
{
return false;
}
}
return false;
}
/**
* Create a compressed file
*
* @access public
* @param string $zipfile Path to the compressed file to be generated
* @param strng $folder Path to the folder to be compressed
* @param array $ignored List of files to ignore
* @return booleam Successful generation of compressed package returned true Otherwise return false
*/
public function zip ($zipfile, $folder, $ignored = null) {
$this->ignored_names = is_array($ignored) ? $ignored : $ignored ? array($ignored) : array();
if ($this->zip->open($zipfile, ZIPARCHIVE::CREATE) !== true) {
throw new Exception("cannot open <$zipfile>\n");
}
$folder = substr($folder, -1) == '/' ? substr($folder, 0, strlen($folder)-1) : $folder;
if(strstr($folder, '/')) {
$this->root = substr($folder, 0, strrpos($folder, '/')+1);
$folder = substr($folder, strrpos($folder, '/')+1);
}
$this->createZip($folder);
return $this->zip->close();
}
/**
* Recursively add files to compressed packages
*
* @access private
* @param string $folder Folder path to add to zip package
* @param string $parent Folder parent path added to compressed package
* @return void
*/
private function createZip ($folder, $parent=null) {
$full_path = $this->root . $parent . $folder;
$zip_path = $parent . $folder;
$this->zip->addEmptyDir($zip_path);
$dir = new DirectoryIterator($full_path);
foreach($dir as $file) {
if(!$file->isDot()) {
$filename = $file->getFilename();
if(!in_array($filename, $this->ignored_names)) {
if($file->isDir()) {
$this->createZip($filename, $zip_path.'/');
}else {
$this->zip->addFile($full_path.'/'.$filename, $zip_path.'/'.$filename);
}
}
}
}
}
/**
* Read the list of compressed package files and directories
*
* @access public
* @param string $zipfile Compressed package file
* @return array File and Directory List
*/
public function fileList($zipfile) {
$file_dir_list = array();
$file_list = array();
if ($this->zip->open($zipfile) == true) {
for ($i = 0; $i < $this->zip->numFiles; $i++) {
$numfiles = $this->zip->getNameIndex($i);
if (preg_match('/\/$/i', $numfiles))
{
$file_dir_list[] = $numfiles;
}
else
{
$file_list[] = $numfiles;
}
}
}
return array('files'=>$file_list, 'dirs'=>$file_dir_list);
}
/**
* Get the mapping table of file header and file type
*
* @author wengxianhu
* @date 2013-08-10
* @param $bin string Documentary 2 Bimodal pre-bimodal 1 Segment character
* @return boolean
*/
private function getTypeList ($bin)
{
$array = array(
array("504B0304", "zip")
);
foreach ($array as $v)
{
$blen = strlen(pack("H*", $v[0])); // Get the number of bytes of file header tag
$tbin = substr($bin, 0, intval($blen)); /// You need to compare file header lengths
if(strtolower($v[0]) == strtolower(array_shift(unpack("H*", $tbin))))
{
return true;
}
}
return false;
}
}
For more readers interested in PHP related content, please check the topics on this site: "PHP Operation zip File and Compression Skills Summary", "php File Operation Summary", "PHP Basic Grammar Introduction Tutorial", "php Object-Oriented Programming Introduction Tutorial", "php String (string) Usage Summary", "php+mysql Database Operation Introduction Tutorial" and "php Common Database Operation Skills Summary"
I hope this article is helpful to everyone's PHP programming.