how to connect different server database tabels

backup_tables('localhost','username','password','DB');


/* backup the db OR just a table */
function backup_tables($host,$user,$pass,$name,$tables = '*')
{
  
  $link = mysql_connect($host,$user,$pass);
  mysql_select_db($name,$link);
  
  //get all of the tables
  if($tables == '*')
  {
    $tables = array();
    $result = mysql_query('SHOW TABLES');
    while($row = mysql_fetch_row($result))
    {
      $tables[] = $row[0];
    }
  }
  else
  {
    $tables = is_array($tables) ? $tables : explode(',',$tables);
  }
  
  //cycle through
  foreach($tables as $table)
  {
    $result = mysql_query('SELECT * FROM `'.$table.'`');
	
    $num_fields = mysql_num_fields($result);
    
    $return.= 'DROP TABLE `'.$table.'`;';
    $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE `'.$table.'`'));
    $return.= "\n\n".$row2[1].";\n\n";
    
    for ($i = 0; $i < $num_fields; $i++) 
    {
      while($row = mysql_fetch_row($result))
      {
        $return.= 'INSERT INTO '.$table.' VALUES(';
        for($j=0; $j<$num_fields; $j++) 
        {
          $row[$j] = addslashes($row[$j]);
          $row[$j] = ereg_replace("\n","\\n",$row[$j]);
          if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
          if ($j<($num_fields-1)) { $return.= ','; }
        }
        $return.= ");\n";
      }
    }
    $return.="\n\n\n";
  }
  
  //save file
  $filename = 'db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql';
  $handle = fopen($filename,'w+');
  fwrite($handle,$return);
  fclose($handle);
  $to = 'db@tornbuddy.com';
//define the subject of the email
$subject = 'DB Backup';
//create a boundary string. It must be unique
//so we use the MD5 algorithm to generate a random hash
$random_hash = md5(date('r', time()));
//define the headers we want passed. Note that they are separated with \r\n
$headers = "From: db@tornbuddy.com\r\nReply-To: no-reply@tornbuddy.com";
//add boundary string and mime type specification
$headers .= "\r\nContent-Type: multipart/mixed; boundary=\"PHP-mixed-".$random_hash."\"";
//read the atachment file contents into a string,
//encode it with MIME base64,
//and split it into smaller chunks
$attachment = chunk_split(base64_encode(file_get_contents($filename)));
//define the body of the message.
ob_start(); //Turn on output buffering
?>
--PHP-mixed-<?php echo $random_hash; ???> 
Content-Type: multipart/alternative; boundary="PHP-alt-<?php echo $random_hash; ???>"

--PHP-alt-<?php echo $random_hash; ???> 
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

DB backup
--PHP-alt-<?php echo $random_hash; ???> 
Content-Type: text/html; charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

<h2>DB Backup</h2>
<?php echo $filename; ???>

--PHP-alt-<?php echo $random_hash; ???>--

--PHP-mixed-<?php echo $random_hash; ???> 
Content-Type: application/zip; name="db_backup.sql" 
Content-Transfer-Encoding: base64 
Content-Disposition: attachment 

<?php echo $attachment; ???>
--PHP-mixed-<?php echo $random_hash; ???>--

//copy current buffer contents into $message variable and delete current output buffer
$message = ob_get_clean();
//send the email
$mail_sent = @mail( $to, $subject, $message, $headers );
//if the message is sent successfully print "Mail sent". Otherwise print "Mail failed"
unlink($filename);
}
?>