Simpan IP komputer Dengan Php

Buat database sperti ini.
CREATE TABLE IF NOT EXISTS `counter` (
  `id` int(250) NOT NULL AUTO_INCREMENT,
  `location` varchar(250) NOT NULL,
  `ip` varchar(250) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=2273 ;

Buat file counter.php masukan coding ini kedalam file tersebut.

<?php
include "koneksi.php";
function initCounter() {
$ip = $_SERVER['REMOTE_ADDR']; // menangkap ip pengunjung
 $location = $_SERVER['PHP_SELF']; // menangkap server path
 //membuat log dalam tabel database 'counter'
 $create_log = mysql_query("INSERT INTO counter(ip,location)VALUES('$ip', '$location') ");}
function getCounter($mode, $location = NULL) {
if(is_null($location)) {
 $location = $_SERVER['PHP_SELF'];}
if($mode == "unique") {
     $get_res = mysql_query("SELECT DISTINCT ip FROM counter1 WHERE location = '$location' ");
}     else{
     $get_res = mysql_query("SELECT ip FROM counter1 WHERE location = '$location' ");
}

$res = mysql_num_rows($get_res);

return $res;

}

?>
untuk menampilkan atau panggil ip yang tersimpan masukan coding kedalam file index.php

<?php

include_once("counter.php");

initCounter();

echo " ".getCounter('hits')." | ".getCounter('unique')."";

?>