问题:

Is there is any safe way to create a zip archive, or tar.gz from php without using exec command ?

thanks

回答1:

If you want to create tar.gz and you are using PHP 5.3+, you can use PharData class:

try {     $a = new PharData('archive.tar');      // ADD FILES TO archive.tar FILE     $a->addFile('data.xls');     $a->addFile('index.php');      // COMPRESS archive.tar FILE. COMPRESSED FILE WILL BE archive.tar.gz     $a->compress(Phar::GZ);      // NOTE THAT BOTH FILES WILL EXISTS. SO IF YOU WANT YOU CAN UNLINK archive.tar     unlink('archive.tar'); }  catch (Exception $e)  {     echo "Exception : " . $e; }

回答2:

You can use PHP's Zip class to create zip files, and ZLib to create gzip files.

Creating a .zip file:

$zip = new ZipArchive(); $res = $zip->open('test.zip', ZipArchive::CREATE); $zip->addFromString('test.txt', 'file content goes here'); $zip->addFile('data.txt', 'entryname.txt'); $zip->close();

Creating a .gz file:

$file = "test.txt"; $gzfile = "test.gz"; $fp = gzopen($gzfile, 'w9'); // w == write, 9 == highest compression gzwrite($fp, file_get_contents($file)); gzclose($fp);

回答3:

Use the system command instead

http://php.net/manual/en/function.system.php

Pay attention to the notes section on how to protect from malicious input.

EDIT: Use the ZipArchive class to create a new zip via the open() command http://www.php.net/manual/en/class.ziparchive.php

回答4:

There is a very simple way to create Tar-archives directly within PHP - you can find a CLASS at sourceforge from Dennis Wronka under LGPL so you can use also in commercial scripts.

  */ /**  * @package PHPClassCollection  * @subpackage Tar  * @link classes  * @author Dennis Wronka   * @version 1.1  * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html LGPL 2.1  */ class tar { /**  * The name of the tar-file to create.  *  * @var string  */ var $filename; /**  * The list of files to add to the archive.  *  * @var array  */ var $filelist=array();  /**  * Constructor  *  * @param string $filename  */ function tar($filename) {     $this->filename=$filename; }  /**  * Add a file.  *  * @param string $filename  */ function add($filename) {     if ((file_exists($filename)) && (is_readable($filename)))     {         $this->filelist[]=$filename;     } }  /**  * Write the tar-file.  *  * @return bool  */ function write() {     sort($this->filelist);     $tarfile=@fopen($this->filename,'w');     if ($tarfile==false)     {         return false;     }     for ($x=0;$xfilelist);$x++)     {         $filename=$this->filelist[$x];         if ((is_dir($this->filelist[$x])) && (substr($this->filelist[$x],-1)!='/'))         {             $filename.='/';         }         while (strlen($filename)filelist[$x])).chr(0);         while (strlen($permissions)filelist[$x])).chr(0);         while (strlen($userid)filelist[$x])).chr(0);         while (strlen($groupid)filelist[$x]))         {             $filesize='0'.chr(0);         }         else         {             $filesize=sprintf('%o',filesize($this->filelist[$x])).chr(0);         }         while (strlen($filesize)filelist[$x])).chr(0);         $checksum='        ';         if (is_dir($this->filelist[$x]))         {             $indicator=5;         }         else         {             $indicator=0;         }         $linkname='';         while (strlen($linkname)filelist[$x],'r');             $data=fread($contentfile,filesize($this->filelist[$x]));             while (strlen($data)%512!=0)             {                 $data.=chr(0);             }             fwrite($tarfile,$data);         }     }     fclose($tarfile);     return true; } } ?>

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