PHP - Login To One Page From Another

hi

i need help an idea how can i separate members from admins
since i dont know how to create login form i used tutorial ( http://www.youtube.com/watch?v=4oSCuEtxRK8 )   (its session login form only that i made it work other tutorials wre too old or something)
how what i want to do is separate members and admins because admin need more rights to do
now i have idea but dont know will it work like that
what i want to do is create additional row in table named it flag and create 0 (inactive user) 1 (member) 2 (admin) will that work?
and how can i create different navigation bars for users and admins? do you recommend that i use different folders to create it or just script based on session and flag?

Can someoneplease help, I need to setup an error page like IF Username and Password are wrong then show an error also if there is no username or password in the fields and I just click LOGIN, I get a blank page?!

Can someone please help me here or point me to a relevant tutorial?

thanks

here is my page:
http://www.retroandvintage.co.uk/default.php

here is my  code:
Code: [Select]
<?php
session_start();
include_once("config.php");

$ebits = ini_get('error_reporting');
error_reporting($ebits ^ E_NOTICE);
/*
Login script:
This script does the following:

Checks that the user is NOT already logged in - if they are they
are redirected to the members page by the 'checkLoggedIn()' function.

Checks if the login form has been submitted - if so, the 'login' and
'password' fields are checked to ensure they are of the correct format and length.
If there are any problems here an error is added to the $messages array and
then the script executes the 'doIndex()' function - this function basically
outputs the main 'index' page for this script - ie the login form.

If there are no problems with the previous step, the 'login' and 'password'
field data is passed to the 'checkPass' function to check that an entry
exists in the 'users' table for that login/password pair.
If nothing is returned from the 'checkPass()' function, an error is
added to the $messages array and the 'doIndex()' function is called as above.

If a row of data is returned from the 'users' table, the data is passed to
the 'cleanMemberSession()' function - which initializes session variables and
logs the user in.  The user is then forwarded to the members page.

If the form hasn't yet been submitted, then the 'doIndex()' function is called
and the login page is displayed.
*/
// Check user not logged in already:
checkLoggedIn("no");

// Page title:
$title="Member Login Page";

// if $submit variable set, login info submitted:
if(isset($_POST["submit"])) {
//
// Check fields were filled in
//
// login must be between 4 and 15 chars containing alphanumeric chars only:
field_validator("rsUser", $_POST["rsUser"], "alphanumeric", 4, 15);
// password must be between 4 and 15 chars - any characters can be used:
field_validator("rsPass", $_POST["rsPass"], "string", 4, 15);

// if there are $messages, errors were found in validating form data
// show the index page (where the messages will be displayed):
if($messages){
doIndex();
// note we have to explicity 'exit' from the script, otherwise
// the lines below will be processed:
exit;
}

// OK if we got this far the form field data was of the right format;
// now check the user/pass pair match those stored in the db:
/*
If checkPass() is successful (ie the login and password are ok),
then $row contains an array of data containing the login name and
password of the user.
If checkPass() is unsuccessful however, $row will simply contain
the value 'false' - and so in that case an error message is
stored in the $messages array which will be displayed to the user.
*/
    if( !($row = checkPass($_POST["rsUser"], $_POST["rsPass"])) ) {
// login/passwd string not correct, create an error message:
        $messages[]="Incorrect login/password, try again";
    }

/*
If there are error $messages, errors were found in validating form data above.
Call the 'doIndex()' function (which displays the login form) and exit.
*/
if($messages){
doIndex();
exit;
}

/*
If we got to this point, there were no errors - start a session using the info
returned from the db:
*/
cleanMemberSession($row["rsUser"], $row["rsPass"]);

// and finally forward user to members page (populating the session id in the URL):
header("Location: main.php");
} else {
// The login form wasn't filled out yet, display the login form for the user to fill in:
doIndex();
}

/*
This function displays the default 'index' page for this script.  This consists of just a simple
login form for the user to submit their username and password.
*/
function doIndex() {
/*
Import the global $messages array.
If any errors were detected above, they will be stored in the $messages array:
*/
global $messages;

/*
also import the $title for the page - note you can normally just declare all globals on one line
- ie:
global $messages, $title;
*/
global $title;
}
// drop out of PHP mode to display the plain HTML:
?>
<!doctype html>
<html>
<head>
<title>List of Pubs and Bars in the UK</title>
<meta name="description" content="Pubs and bars in the UK, nightlife for food and drink" />
<meta name="keywords" content="Pubs, bars, List, uk, nightlife, drinking, drinks, beer, lager, food" />
<meta name="Content-Language" content="en-gb" />
<meta name="robots" content="FOLLOW,INDEX" />
<meta name="revisit-after" content="2 days" />
<meta name="copyright" content="jbiddulph.com" />
<meta name="author" content="John Biddulph - Professional web site design and development in the south of england mainly worthing and brighton" />
<meta name="distribution" content="Global" />
<meta name="resource-type" content="document" />
<link rel="stylesheet" type="text/css" href="css/reset.css" />
<link rel="stylesheet" type="text/css" href="css/ui-lightness/jquery-ui-1.8.6.custom.css" title="default" />
<link rel="alternate stylesheet" type="text/css" href="css/south-street/jquery-ui-1.8.6.custom.css" title="1" />
<link rel="alternate stylesheet" type="text/css" href="css/redmond/jquery-ui-1.8.6.custom.css" title="2" />
<script type="text/javascript" src="js/stylechanger.js"></script>
<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.8.6.custom.min.js"></script>
<script type="text/javascript">
$(function(){

// Accordion
$("#accordion").accordion({ header: "h3" });

// Tabs
$('#tabs').tabs();


// Dialog
$('#dialog').dialog({
autoOpen: false,
width: 600,
buttons: {
"Ok": function() {
$(this).dialog("close");
},
"Cancel": function() {
$(this).dialog("close");
}
}
});

// Dialog Link
$('#dialog_link').click(function(){
$('#dialog').dialog('open');
return false;
});

// Datepicker
$('#datepicker').datepicker({
inline: true
});


//hover states on the static widgets
$('#dialog_link, ul#icons li').hover(
function() { $(this).addClass('ui-state-hover'); },
function() { $(this).removeClass('ui-state-hover'); }
);

});
</script>
<script type="text/javascript">
function lookup(inputString) {
if(inputString.length == 0) {
// Hide the suggestion box.
$('#suggestions').hide();
} else {
$.post("rpc.php", {queryString: ""+inputString+""}, function(data){
if(data.length >0) {
$('#suggestions').show();
$('#autoSuggestionsList').html(data);
}
});
}
} // lookup

function fill(thisValue) {
$('#inputString').val(thisValue);
setTimeout("$('#suggestions').hide();", 200);
}
</script>
</head>
<body>
<?php if($messages) { displayErrors($messages); }?>
<header>
<div id="title">
<h1>My Pub Space
<a href="#" onClick="setActiveStyleSheet('default'); return false;"><img src="images/0.gif" width="15" height="15" border="0" alt="css style" /></a>&nbsp;<a href="#" onClick="setActiveStyleSheet('1'); return false;"><img src="images/1.gif" width="15" height="15" border="0" alt="css style" /></a>&nbsp;<a href="#" onClick="setActiveStyleSheet('2'); return false;"><img src="images/2.gif" width="15" height="15" border="0" alt="css style" /></a>
<span>
<form method="post" class="textbox" action="search.php">
Town/City:&nbsp;<input type="text" size="26" class="searchbox" value="" name="rsTown" id="inputString" onKeyUp="lookup(this.value);" onBlur="fill();" />

<div class="suggestionsBox" id="suggestions" style="display: none;">
<img src="images/upArrow.png" style="position: relative; top: -36px; left: 105px; z-index:1;" alt="upArrow" />
<div class="suggestionList" id="autoSuggestionsList">
&nbsp; </div>
</div>
<input type="image" src="images/go.png" height="30" with="30" value="GO" />
</form>
</span>
  </h1>
</div>
</header>
<nav>
<ul>
<li class="selected"><a href="default.php">Home</a></li>
<li><a href="#">Pubs</a></li>
<li><a href="#">Members</a></li>
<li><a href="#">Events</a></li>
<li><a href="register.php">Register</a></li>
</ul>
</nav>
<section id="intro">
<header>
<h2>Your social guide to going down the pub, online!</h2>
</header>
<p>Stuck in town with nowhere to go? Not sure if up the road or down the street is best? Need to be somewhere warm, cosy and friendly. Need a drink?....<br />You've come to the right place, mypubspace has it all!</p>
<img src="images/pub.jpg" alt="pub" /> </section>
<div id="content">
<div id="mainContent">
<section>
<article class="blogPost">
<header>
<h2>Pubs and Bars UK Listing</h2>

</header>
<?php

$tableName="pubs";
$targetpage = "default.php"; 
$limit = 20; 

$query = "SELECT COUNT(*) as num FROM $tableName";
$total_pages = mysql_fetch_array(mysql_query($query));
$total_pages = $total_pages['num'];

$stages = 3;
$page = mysql_escape_string($_REQUEST['page']);
if( isset($_REQUEST['page']) && ctype_digit($_REQUEST['page']) ) {
      $page = (int) $_GET['page'];
      $start = ($page - 1) * $limit;
}else{
      $start = 0;   
}

    // Get page data
$query1 = "SELECT * FROM $tableName LIMIT $start, $limit";
$result = mysql_query($query1);

// Initial page num setup
if ($page == 0){$page = 1;}
$prev = $page - 1;
$next = $page + 1;
$lastpage = ceil($total_pages/$limit);
$LastPagem1 = $lastpage - 1;


$paginate = '';
if($lastpage > 1)
{




$paginate .= "<div class='paginate'>";
// Previous
if ($page > 1){
$paginate.= "<a href='$targetpage?page=$prev'>previous</a>";
}else{
$paginate.= "<span class='disabled'>previous</span>"; }



// Pages
if ($lastpage < 7 + ($stages * 2)) // Not enough pages to breaking it up
{
for ($counter = 1; $counter <= $lastpage; $counter++)
{
if ($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}
}
}
elseif($lastpage > 5 + ($stages * 2)) // Enough pages to hide a few?
{
// Beginning only hide later pages
if($page < 1 + ($stages * 2))
{
for ($counter = 1; $counter < 4 + ($stages * 2); $counter++)
{
if ($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}
}
$paginate.= "...";
$paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
$paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";
}
// Middle hide some front and some back
elseif($lastpage - ($stages * 2) > $page && $page > ($stages * 2))
{
$paginate.= "<a href='$targetpage?page=1'>1</a>";
$paginate.= "<a href='$targetpage?page=2'>2</a>";
$paginate.= "...";
for ($counter = $page - $stages; $counter <= $page + $stages; $counter++)
{
if ($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}
}
$paginate.= "...";
$paginate.= "<a href='$targetpage?page=$LastPagem1'>$LastPagem1</a>";
$paginate.= "<a href='$targetpage?page=$lastpage'>$lastpage</a>";
}
// End only hide early pages
else
{
$paginate.= "<a href='$targetpage?page=1'>1</a>";
$paginate.= "<a href='$targetpage?page=2'>2</a>";
$paginate.= "...";
for ($counter = $lastpage - (2 + ($stages * 2)); $counter <= $lastpage; $counter++)
{
if ($counter == $page){
$paginate.= "<span class='current'>$counter</span>";
}else{
$paginate.= "<a href='$targetpage?page=$counter'>$counter</a>";}
}
}
}

// Next
if ($page < $counter - 1){ 
$paginate.= "<a href='$targetpage?page=$next'>next</a>";
}else{
$paginate.= "<span class='disabled'>next</span>";
}

$paginate.= "</div>";


}
 echo $total_pages.' Results';
 // pagination
 echo $paginate;
?>

<div id="accordion">
<?php 
 

while($row = mysql_fetch_array($result))
{

echo '<div><h3><a href=\"#\">'.$row['rsPubName'].'</a></h3><div>'.$row['rsAddress'].'<br />'.$row['rsTown'].', '.$row['rsCounty'].'<br />'.$row['rsPostCode'].'<br /><br />Region: '.$row['Region'].'<br /><br />Telephone: '.$row['rsTel'].'</div></div>';

}

?>
</div>
</article>
</section>

</div>
<aside>
<section>
<header>
<h3>Members Login Area</h3>
</header>
<form method="post" class="textbox" action="<?php print $_SERVER["PHP_SELF"]; ?>">
Username:&nbsp;<br />
<input type="text" class="textbox" name="rsUser" value="<?php print isset($_POST["rsUser"]) ? $_POST["rsUser"] : "" ; ?>">
Password:&nbsp;<br />
<input type="password" class="textbox" name="rsPass">
<br />
<br />
<input name="submit" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" type="submit" value="Login">
<br />
</form>
<ul>
<li><button id="button" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" role="button" aria-disabled="false"><span class="ui-button-text"><a href="register.php">Sign up</a></span></button></li>
<li><button id="button" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" role="button" aria-disabled="false"><span class="ui-button-text"><a href="forgot.php">Forgot Password</a></span></button></li>
</ul>
</section>
<section>
<header>
<h3>Quick Search</h3>
</header>
<ul>
<li><a href="#">Coming Soon!</a></li>
</ul>
</section>
</aside>
</div>
<footer>
<div>
<section id="about">
<header>
<h3>About</h3>
</header>
<p>My Pub Space is one of the largest and newest UK Pubs and Bars Listing sites online. It is not just a list of pubs, we have added a touch of interactive social pubbing experience online! Once registered, you can view information on pubs in your area, write reviews, organise your evenings out!</p>
</section>
<section id="blogroll">
<header>
<h3>Links</h3>
</header>
<ul>
<li><a href="#">Coming Soon!</a></li>
</ul>
</section>
<section id="popular">
<header>
<h3>Popular</h3>
</header>
<ul>
<li><a href="#">Coming Soon!</a></li>
</ul>
</section>
</div>
</footer>
</body>
</html>

Hi,

I am a php newbie, who has a page that relies on some php scripts, and to which I am trying to add a login page written in php.  I took the example from he

http://www.howtodothings.com/computers-internet/how-to-make-a-login-system-for-your-website

Basically it consists of adding:

<?
require("log.php");
?>

to the top of any page I want to protect, a log.php file which performs the actions of the form, linking to a mySQL database, and a login.php file which contains the form.

I have the login working fine, but it breaks one of the PHP scripts on the page that is protected.  It is an upload script, called Weaverbox, based on FancyUpload.  The uploads which are handled by a file called upload.php, aren't happening.  The progress shows that they are being uploaded, but nothing is uploaded, and there is no success message.  As soon as I remove the code from the top of the page requiring log.php all works fine again.

I think I may have to add some rules/extensions to resolve this conflict, but I don't know how to go about this.  Would someone be able to help me get it sorted?

Thanks

Nick

ONE of my SESSION values isn't remaining after login while others do.

This works fine on my localhost, it's on the live site that there is a problem and it just started yesterday. Before that it worked great.

Out of the four SESSIONs made I can only echo three values on other pages, member id the most important doesn't transfered to other pages

Notes: all these files are in the same folder, there is a SESSION started for the member id on the login page, you can see that it is used in the redirect below and the redirect works fine with the redirect going to the correct page " $home/member/index.php?user=$id_mem "

Here is the login page
// Here's the basic login page info
<?php # login.php
session_start();
ob_start() 
...connect to db & header called...
...Form validation.....

if ($e && $p) { // If everything's OK.
// Query the database:
$q = "SELECT id_mem, display_name, mem_group FROM sn_members WHERE (email='$e' AND password=SHA1('$p')) AND active IS NULL";
$r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc));
//  or die("Error: ".mysqli_error($dbc));

if (@mysqli_num_rows($r) == 1) { // If a match was made.

// Register the values & redirect:
// Give SELECTED elements a session
$_SESSION = mysqli_fetch_array ($r, MYSQLI_ASSOC);
$_SESSION['agent'] = md5($_SERVER['HTTP_USER_AGENT']);
mysqli_free_result($r);

// Update db for last login
$id_mem = $_SESSION['id_mem']; // <<< SESSION member id has a value here because it's used in the redirect below
$ip = $_SERVER['REMOTE_ADDR']; // Get ip address of person logging in
$q = "UPDATE sn_members SET last_login = Now(), ip = '$ip' WHERE id_mem = '$id_mem' LIMIT 1";
$r = mysqli_query ($dbc, $q) or trigger_error("Query: $q\n<br />MySQL Error: " . mysqli_error($dbc));

header("Location: $home/member/index.php?user=$id_mem");
exit(); // Quit the script.

}
?>


Here is the main page that a user would be redirect to above
<?php // /member/ all member info is through this folder
session_start();
ob_start();

if (isset($_GET['user']) && is_numeric($_GET['user'])) {
$user = $_GET['user'];
$user = $user;
if ($user < 0) {
header("Location: $home/index.php");
exit();
}
}

if ((!isset($_SESSION['id_mem']))  && (!isset($_SESSION['agent']) OR ($_SESSION['agent'] != md5($_SERVER['HTTP_USER_AGENT'])))){
// If not a logged in member redirect
header("Location: $home/index.php");
exit(); // Quit the script.
}
?>

Thanks in advance for the help
SJ

Hello, I am once again desperately asking for your help,

I am working on a simple login page and I am having trouble actually getting it  to login. I display error messages for if the user doesn't enter anything but I can't seem to get it to work for if the credentials are wrong. It logs the user in whether the information is right or not and i dont even know what to do now

 

This is the code any suggestions would be greatly appreciated

<?php
    /*
    Name: Deanna Slotegraaf 
    Course Code: WEBD3201
    Date: 2020-09-22
    */

    $file = "sign-in.php";
    $date = "2020-09-22";
    $title = "WEBD3201 Login Page";
    $description = "This page was created for WEBD3201 as a login page for a real estate website";
    $banner = "Login Page";
    require 'header.php';

    $error = "";

    if($_SERVER["REQUEST_METHOD"] == "GET")
    {
        $username = "";
        $password = "";
        $lastaccess = "";        
        $error = "";
        $result = "";
        $validUser = "";
    }
    else if($_SERVER["REQUEST_METHOD"] == "POST")
    {        
    	$conn;
        $username = trim($_POST['username']); //Remove trailing white space
        $password = trim($_POST['password']); //Remove trailing white space

    if (!isset($username) || $username == "") {
      $error .= "<br/>Username is required";
    }
    if (!isset($password) || $password == ""){
      $error .= "<br/>Password is required";
    }
    if ($error == "") {
      $password = md5($password);
      $query = "SELECT * FROM users WHERE EmailAddress='$username' AND Password='$password'";
      $results = pg_query($conn, $query);
      //$_SESSION['username'] = $username;
        //$_SESSION['success'] = "You are now logged in";
        header('location: dashboard.php');
      }else {
        $error .= "Username and/or Password is incorrect";
      }

}

?>

<div class = "form-signin">
    <?php
             echo "<h2 style='color:red; font-size:20px'>".$error."</h2>";
    ?>
<form action = "<?php echo $_SERVER['PHP_SELF'];  ?>" method="post">

      <label for="uname"><b>Login ID</b></label>
      <input type="text" name="username" value="<?php echo $username; ?>"/>
      <br/>
      <label for="psw"><b>Password</b></label>
      <input type="password" name="password" value="<?php echo $password; ?>"/>
      <br/>
        <button type="submit" name="login_user">Login</button>
        <button type="reset">Reset</button></div>
</form>
</div>

<?php require "footer.php"; ?>