//include database connection (check previous posts to get this one)
include('dbConnection.php');
//get the number of total rows
$query = "SELECT * FROM TableName";
$result = mysql_query($query);
// Number of records found
$num_record = mysql_num_rows($result);
// Number of results per page
$display = 5;
if(isset($_GET['page']) {
$currentPage = $_GET['page'];
}else{
$currentPage = 1;
}
//last page
$lastPage = ceil($num_record/$display);
//limit in the query thing
$limitQ = 'LIMIT ' .($currentPage - 1) * $display .',' .$display;
//normal query and print results
$query = "SELECT * FROM TableName $limitQ";
$result = mysql_query($query);
//here you do your loop like
while($row=@mysql_fetch_object($result)) {
print "$row->FieldName";
}
//pagination navigation (links)
//previous
if ($currentPage == 1) {
print "Prev ";
} else {
print "<a href=pagename.php?page=1>First page</a> ";
$previousPage = $currentPage-1;
print "<a href=pagename.php?page=$previousPage>Previous</a>";
}
print " { Page $currentPage of $lastPage } ";
//for next pages links
if ($currentPage== $lastPage) {
print "Next last";
} else {
$nextPage = $currentPage+1;
print " <a href=pagename.php?page=$nextPage>NEXT</a> ";
print " <a href=pagename.php?page=$lastPage>LAST</a> ";
}
?>

Now you can use this pagination to split your mysql results into multiple webpages!

<?php
function logoutUser() {
session_unset();
session_destroy();
header("Location: homePage.php");
exit();
}
//here's how you put it in action


logoutUser();
?>

Extraordinary,

Now you know how to build a complete membershipt script/site with php including registering module, logiging in & check this thing, and of course users logout module.

<?php
function loginUser($user, $pass) {

if(empty($user) || empty($pass)) {
exit();
}else{
$user = addentities($user);
$pass = addentities($pass);
$sql = "select * from users where user = '$user' and pass = '$pass'";
$rs = mysql_query($sql);

if($rs) {

if(mysql_num_rows($rs) != 0) {
$row=@mysql_fetch_object($rs);
$_SESSION['logged'] = "yes";
$_SESSION['user'] = $user;

refreshPage(0, $_SERVER['PHP_SELF']);
}else{

print "Wrong username and password";
}
}
}
}
?>

Now, how simple is to check if a user is logged in?

<?php

if(checkLogged() == false) {

print "You are unauthorized to see this page, please login!";
}elseif(checkLogged() == true) {

print "Welcome $_SESSION[user]";
}
?>

Please note that into head of the files, at the very begining, before outputing anything else you must add session_start(); function! Check this blog for detailed instructions on how to use sessions.

Good luck!

The first tutorial is called how to create a membership script with user registration. I will write here a function which will do it! We will have database structure like this :

CREATE TABLE IF NOT EXISTS `users` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`user` varchar(255) NOT NULL,
`pass` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ;

After this, here is the function to create new users and insert them into database: – first, create a .php page called functions.php

<?php
//Membership Script - Users Registration Function

function registerNewMember($user, $pass) {
$tableUsers = "users";

if(empty($user) || empty($pass)) {
exit();
}else{
$user = addslashes(mysql_real_escape_string($user));
$pass = addslashes(mysql_real_escape_string($pass));
$sql = "insert into $tableUsers values (null, '$user', '$pass')";
$rs = mysql_query($sql);

if($rs)
{
$result = "ok";
}else{
$result = "fail";
}
}
?>

Now we need to create a page with a form where users will type their desired user & pass (please note we need to include database connection file and functions one:

<?php
//include database connection


include('dbConnection.php');
//include functions.php


include('functions.php');
//check if registration form was submitted


if(isset($_POST['sb'])) {
extract($_POST);

if(registerNewMember($username, $password) == "ok")) {

print "You are now registered";
}else{

print "Not able to add new member";
}
}
?>
<form action="" method="POST">
Pickup  a new username : <input type="text" name="username"><br/>
Pikcup a brand new password : <input type="password" name="password"><br/>
<input type="submit" name="sb" id="sb" value="Register me!">
</form>

PS : For database connection please remember here