Php method for generating Zip files, supporting file and compressed package path lookup

/** New Creatzip ($_dir,$_zipname), *@ _dir is the compressed folder name, can use the path, example ' a ' or ' a/test.txt ' or ' test.txt ' *@ _zipname is the compressed package name, can use the path, example ' A/test.zip ' or ' test.zip ' **/classCreatzip {Private $_dir; Private $_zipdir; Private $_zipname;  Public function__construct ($dir,$zipName) {        $this->_dir =$dir; $this->_zipdir =basename($dir); $this->_zipname =$zipName; $this-mkdirs (); $this-creat (); }    //Detecting and generating catalogs    Private functionmkdirs () {if(!Is_dir(dirname($this-_zipname)))  {            $arr=Explode(‘/‘,dirname($this-_zipname)); $arrs= ' '; foreach($arr  as $value) {                if(!Is_dir($arrs.$value)) {                    if(!!mkdir($arrs.$value)) {                        $arrs.=$value.‘ /‘; }                }            }        }    }    //generate a ZIP archive package    Private functioncreat () {$zip=Newziparchive; if(Is_dir($this-_dir)) {            $this-ReadDir($this->_dir,$files); if($zip->open ($this->_zipname,ziparchive::CREATE)) {                foreach($files  as $value) {                    Preg_match(‘/\/(‘.$this->_zipdir. ' \/.*)/‘,$value,$match); if(Is_dir($value)) {                        @$zip->addemptydir ($value,$match[1]); } Else {                        @$zip->addfile ($value,$match[1]); }                }                $zip-Close (); }        } Else {            if($zip->open ($this->_zipname,ziparchive::CREATE)) {                $zip->addfile ($this->_dir,basename($this-_dir)); }        }    }    //Read folder All Files    Private function ReadDir($dir,&$arr) {        if($dirs=Opendir($dir)) {             while(($file=Readdir($dirs)) !=false) {                if($file= = '. ' | |$file= = '.. ')Continue; $files=$dir.‘ /‘.$file; if(Is_dir($files) &&$this->isempty ($files)) {                    $this-ReadDir($files,$arr); } Else {                    $arr[] =$files; }            }        }        Closedir($dirs); }    //determine if the folder is empty    Private functionIsEmpty ($dir) {        if($_dirs=Opendir($dir)) {             while(($file=Readdir($dirs)) !=false) {                if($file! = '. ' &&$file! = ' ... ') {                    Closedir($dirs); return true;  Break; }            }            Closedir($dirs); return false; }    }}

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Php method for generating Zip files, supporting file and compressed package path lookup