Dosya Ziplemek

<?php 
class zipfile   
{   
  var $datasec = array(); // array to store compressed data 
  var $ctrl_dir = array(); // central directory    
  var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; //end of Central directory record 
  var $old_offset = 0; 

  function add_dir($name)    
  {   
    // adds "directory" to archive - do this before putting any files in directory! 
    // $name - name of directory... like this: "path/" 
    // ...then you can add files using add_file with names like "path/file.txt" 
    $name = str_replace("\\", "/", $name);   

    $fr = "\x50\x4b\x03\x04"; 
    $fr .= "\x0a\x00";    // ver needed to extract 
    $fr .= "\x00\x00";    // gen purpose bit flag 
    $fr .= "\x00\x00";    // compression method 
    $fr .= "\x00\x00\x00\x00"; // last mod time and date 

    $fr .= pack("V",0); // crc32 
    $fr .= pack("V",0); //compressed filesize 
    $fr .= pack("V",0); //uncompressed filesize 
    $fr .= pack("v", strlen($name) ); //length of pathname 
    $fr .= pack("v", 0 ); //extra field length 
    $fr .= $name;  
    // end of "local file header" segment 

    // no "file data" segment for path 

    // "data descriptor" segment (optional but necessary if archive is not served as file) 

    $fr .= pack("V",$crc); //crc32 
    $fr .= pack("V",$c_len); //compressed filesize 
    $fr .= pack("V",$unc_len); //uncompressed filesize 

    // add this entry to array 
    $this -> datasec[] = $fr; 

    $new_offset = strlen(implode("", $this->datasec)); 

    // ext. file attributes mirrors MS-DOS directory attr byte, detailed 
    // at http://support.microsoft.com/support/kb/articles/Q125/0/19.asp 

    // now add to central record 
    $cdrec = "\x50\x4b\x01\x02"; 
    $cdrec .="\x00\x00";    // version made by 
    $cdrec .="\x0a\x00";    // version needed to extract 
    $cdrec .="\x00\x00";    // gen purpose bit flag 
    $cdrec .="\x00\x00";    // compression method 
    $cdrec .="\x00\x00\x00\x00"; // last mod time & date 
    $cdrec .= pack("V",0); // crc32 
    $cdrec .= pack("V",0); //compressed filesize 
    $cdrec .= pack("V",0); //uncompressed filesize 
    $cdrec .= pack("v", strlen($name) ); //length of filename 
    $cdrec .= pack("v", 0 ); //extra field length    
    $cdrec .= pack("v", 0 ); //file comment length 
    $cdrec .= pack("v", 0 ); //disk number start 
    $cdrec .= pack("v", 0 ); //internal file attributes 
    $ext = "\x00\x00\x10\x00"; 
    $ext = "\xff\xff\xff\xff";   
    $cdrec .= pack("V", 16 ); //external file attributes  - 'directory' bit set 

    $cdrec .= pack("V", $this -> old_offset ); //relative offset of local header 
    $this -> old_offset = $new_offset; 

    $cdrec .= $name;   
    // optional extra field, file comment goes here 
    // save to array 
    $this -> ctrl_dir[] = $cdrec;   
  } 
  function add_file($data, $name)    
  // adds "file" to archive    
  // $data - file contents 
  // $name - name of file in archive. Add path if your want 
  {   
    $name = str_replace("\\", "/", $name);   
    //$name = str_replace("\\", "\\\\", $name); 
    $fr = "\x50\x4b\x03\x04"; 
    $fr .= "\x14\x00";    // ver needed to extract 
    $fr .= "\x00\x00";    // gen purpose bit flag 
    $fr .= "\x08\x00";    // compression method 
    $fr .= "\x00\x00\x00\x00"; // last mod time and date 

    $unc_len = strlen($data);   
    $crc = crc32($data);   
    $zdata = gzcompress($data);   
    $zdata = substr( substr($zdata, 0, strlen($zdata) - 4), 2); // fix crc bug 
    $c_len = strlen($zdata);   
    $fr .= pack("V",$crc); // crc32 
    $fr .= pack("V",$c_len); //compressed filesize 
    $fr .= pack("V",$unc_len); //uncompressed filesize 
    $fr .= pack("v", strlen($name) ); //length of filename 
    $fr .= pack("v", 0 ); //extra field length 
    $fr .= $name;   
    // end of "local file header" segment 
              
    // "file data" segment 
    $fr .= $zdata;   

    // "data descriptor" segment (optional but necessary if archive is not served as file) 
    $fr .= pack("V",$crc); //crc32 
    $fr .= pack("V",$c_len); //compressed filesize 
    $fr .= pack("V",$unc_len); //uncompressed filesize 

    // add this entry to array 
    $this -> datasec[] = $fr; 

    $new_offset = strlen(implode("", $this->datasec)); 

    // now add to central directory record 
    $cdrec = "\x50\x4b\x01\x02"; 
    $cdrec .="\x00\x00";    // version made by 
    $cdrec .="\x14\x00";    // version needed to extract 
    $cdrec .="\x00\x00";    // gen purpose bit flag 
    $cdrec .="\x08\x00";    // compression method 
    $cdrec .="\x00\x00\x00\x00"; // last mod time & date 
    $cdrec .= pack("V",$crc); // crc32 
    $cdrec .= pack("V",$c_len); //compressed filesize 
    $cdrec .= pack("V",$unc_len); //uncompressed filesize 
    $cdrec .= pack("v", strlen($name) ); //length of filename 
    $cdrec .= pack("v", 0 ); //extra field length    
    $cdrec .= pack("v", 0 ); //file comment length 
    $cdrec .= pack("v", 0 ); //disk number start 
    $cdrec .= pack("v", 0 ); //internal file attributes 
    $cdrec .= pack("V", 32 ); //external file attributes - 'archive' bit set 

    $cdrec .= pack("V", $this -> old_offset ); //relative offset of local header 
    //      &n // bsp; echo "old offset is ".$this->old_offset.", new offset is $new_offset<br>"; 
    $this -> old_offset = $new_offset; 

    $cdrec .= $name;   
    // optional extra field, file comment goes here 
    // save to central directory 
    $this -> ctrl_dir[] = $cdrec;   
  } 
  function file() { // dump out file    
    $data = implode("", $this -> datasec);   
    $ctrldir = implode("", $this -> ctrl_dir);   
    return    
      $data.   
      $ctrldir.   
      $this -> eof_ctrl_dir.   
      pack("v", sizeof($this -> ctrl_dir)).     // total # of entries "on this disk" 
      pack("v", sizeof($this -> ctrl_dir)).     // total # of entries overall 
      pack("V", strlen($ctrldir)).             // size of central dir 
      pack("V", strlen($data)).                 // offset to start of central dir 
      "\x00\x00";                             // .zip file comment length 
  } 
}   
?> 


ÖRNEK KULLANIMI 
<?php 
  $zipfile = new zipfile();   

  // Zip Klasörünün İçinde Yeni Bir Klasör Oluşturmak İsterseniz 
  $zipfile -> add_dir("dir/"); 

  // zip Klasörünün İçindeki Dosya İçeriği 
  $filedata = "zip klasörünün içindeki dosyaya yazmak istedikleriniz buraya";   
  $zipfile -> add_file($filedata, "dir/file.txt");   

  // Bu Bölüm Zip Klasörünü Download Etmek İçin 
  header("Content-type: application/octet-stream");   
  header("Content-disposition: attachment; filename=test.zip");   
  echo $zipfile -> file();   


  // Bu Bölüm Zip Klasörünü Sunucunuza Kaydetmek İçin 
  $filename = "output.zip"; 
  $fd = fopen ($filename, "wb"); 
  $out = fwrite ($fd, $zipfile -> file()); 
  fclose ($fd); 
?>