PHP My Multi User Login System Won't Work

Brandon3000 · May 10, 2022

I've been trying to make a multi user login system but when I try to log on it stays at the login page (index.php) page. What can I do?

index.php

PHP:

<form method="post" class="form-horizontal">

    <div class="form-group">
        <label class="col-sm-3 control-label">Email</label>
        <div class="col-sm-6">
            <input type="text" name="txt_email" class="form-control" placeholder="enter email" />
        </div>
    </div>

    <div class="form-group">
        <label class="col-sm-3 control-label">Password</label>
        <div class="col-sm-6">
            <input type="password" name="txt_password" class="form-control" placeholder="enter password" />
        </div>
    </div>

    <div class="form-group">
        <label class="col-sm-3 control-label">Select Type</label>
        <div class=col-sm-3>
            <select class="form-control" name="txt_role">
                <option value="" selected="selected"> - Which one are you </option>
                <option value="admin"> Admin </option>
                <option value="parent"> Parent </option>
                <option value="swimmer"> Swimmer </option>
            </select>
        </div>
    </div>

    <div class="form-group">
        <div class="col-sm-offset-3 col-sm-9 m-t-15">
            <input type="submit" name="btn_login" class="btn btn-success" value="Login">
        </div>
    </div>

    <div class="form-group">
        <div class="col-sm-offset col-sm-9 m-t-15">
            You don't have an account at Water Tower 2000 <a href="register.php">
                <p class="text-info">Register Water Tower 2000 Account </p>
            </a>
        </div>
    </div>
</form>

index.php PHP Code

PHP:

<?php
require_once 'connection.php';
session_start ();

if(isset ($_SESSION["admin_login"]))

{
    header ("location:admin/admin_home.php");
}

if(isset ($_SESSION["parent_login"]))

{
    header ("location:parent/parent_home.php");
}

if(isset ($_SESSION["swimmer_login"]))
{
    header ("location:swimmer/swimmer_home.php");
}


if (isset ($_GET['btn_login'])) {

    $email = $_GET ["txt_email"];

    $password = $_GET ["txt_password"];

    $email = $_GET ["txt_role"];

if(empty($email)){

    $errorMsg[]="please enter your water tower email";

}

else if(empty($password)){

    $errorMsg[]="please enter yout water tower email";
}

else if(empty($role)){

    $errorMsg[]="please enter yout water tower email";

}


else if($email AND $password AND $role){

try{

$select_stmt=$db->prepare("SELECT email,password,role FROM masterlogin WHERE email=:uemail

AND password=:upassword AND role=:urole");

$select_stmt->bindParam(":uemail",$email);

$select_stmt->bindParam(":upassword",$password);

$select_stmt->bindParam(":urole",$role);

$select_stmt->excute();

while ($row=$select_stmt->fetch(PDO::FETCH_ASSOC)){

    $dbemail =$row["email"];

    $dbpassword =$row["password"];

    $dbrole =$row["role"];

}
    
if($email!=null AND $password!=null AND $role!=null){

if($select_stmt->rowCount()>0){

if ($email!==$dbemail AND $password==$dbpassword AND $role==$dbrole){

switch($dbrole) {

case "admin":

$_SESSION ["admin_login"]=$email;
$loginMsg="Admin...Your in Water Tower...";
header("refresh:3;admin/admin_home.php");
break;

case "parent":
$_SESSION["parent_login"]=$email;
$loginMsg="Parent...Welcome To Water Tower...";
header("refresh:3;parent/parent_home.php");
break;

case "swimmer":
$_SESSION ["swimmer_login"]=$email;
$loginMsg="Fellow swimmer...Your in Water Tower...";
header("refresh:3;swimmer/swimmer_home.php");
break;

default:
$errorMsg[]="Sorry but either the email/password/role is wrong";
}

}



else {

$errorMsg="Sorry but either the email/password/role is wrong";
}

}

else {

$errorMsg="Sorry but either the email/password/role is wrong";

}

}

else{

$errorMsg="Sorry but either the email/password/role is wrong";

}

}



catch (PDOException $e){

$e->getMassage();

}

}

else {

$errorMsg="Sorry but either the email/password/role is wrong";

}

}

?>

register.php

PHP:

<form method ="post" class="form-horizontal">

<div class ="form-group">
<label class = "col-sm-3 control-label">Username</label> 
<div class = "col-sm-6"> 
<input type = "text" name="txt_username" class="form-control" placeholder = "enter username" />
</div>
</div>

<div class ="form-group">
<label class = "col-sm-3 control-label">Password</label> 
<div class = "col-sm-6"> 
<input type = "password" name="txt_password" class="form-control" placeholder = "enter password" />
</div>
</div>

<div class ="form-group">
<label class = "col-sm-3 control-label">Username</label> 
<div class = "col-sm-6">
<select class = "" name="txt_role">
<option value = "" selected = "selected"> - select role - </option>
<option value = "swimmer">Swimmer</option>         
<option value = "parent">Parent</option>
</select>   
</div>
</div>

<div class = "form-group">
<div class = "col-sm-offset-3 col-sm-9- m-t-15">   
<input type = "submit" name="btn_register" class="btn btn-primary" value = "Register">
</div>
</div>

<div class = "form-group">
<div class ="col-sm-offset-3 col-sm-9 m-t-15">
You have an account at Water Tower? <a href = "index.php"><p class = "text-info">Login Account </p></a>       
</div>
</div>

</form>

register.php PHP Code

PHP:

<?php

require_once 'connection.php';

if(isset ($_GET["btn_register"]))

{

if (isset ($_GET['btn_login'])) {
    $username = $_GET ["txt_username"];
    $email = $_GET ["txt_email"];
    $password = $_GET ["txt_password"];
    $role = $_GET ["txt_role"]


if(empty($username)){
    $errorMsg[]="please enter your usernmae";
}

else if(empty($email)){
    $errorMsg[]="please enter your email";
}

else if(!filter_var($email,FILTER_VALIDATE_EMAIL)){
    $errorMsg[]="please enter a valid email address ";
}

else if(empty($password)){
    $errorMsg[]="please enter password";
}   

else if (strlen ($password) < 6) {
    $errorMsg[]="It needs to be more than 6 characters";
}

else if (empty($role)) < 6) {
    $errorMsg[]="Please select a role";
}


try{
$select_stmt=$db->prepare("SELECT username,email FROM masterlogin WHERE username=:uname OR
email=:uemail");

$select_stmt->bindParam(":uname",$username);
$select_stmt->bindParam(":uemail",$email);
$select_stmt->excute();
$row=$select_stmt->fetch(PDO::FETCH_ASSOC);


if ($row["username"]==$username){
    $errorMsg[]="Sorry but username already exsit";
}

else if ($row["email"]==$email){
    $errorMsg[]="Sorry but email already exsit";
}

else if($isset($errorMsg))

{

$insert_stmt=$db->prepare ("INSERT INTO masterlogin (username,email,password,root) VALUES(:uname,:uemail,:upassword,:urole)");
$insert_stmt->bindParam(":uname",$username);
$insert_stmt->bindParam("uemail",$uemail);
$insert_stmt->bindParam("upassword",$upassword);
$insert_stmt->bindParam("urole",$role);

if($insert_stmt->excute())

{

$registerMsg = "Register Succesfully...Wait Login Page";   
header("refresh:4;index.php");

       }

   }

 }

 catch (PDOException $e) {

    echo $e->getMassage();

 }

}

}

?>

connection.php

PHP:

<?php

$db_host="localhost";
$db_user="root";
$db_password= "";
$db_name="php_water tower 2000";

try {

    $db=new PDO ("mysql:host={$db_host};dbname={$db_name}",$db_user,$db_password);
    $db->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);

}

catch (PDOEXCEPTION $e) {
    $e->getMessage();
}

?>

admin_home.php

PHP:

<style type = "text/css">

body {
    padding:0;
    margin:0;
    background:
}
    
h1 {

    font-size:5em;
    margin:0;
    padding:0;
    text-align:center;
    font-family: 'arial';
    position:absolute;
    top:50%;
    left:50%;
    transform: translateX(-50%);

}

</style>
</body>

<body>
<h1> This is the Admin Page </h1>
</body>


<?php

session_start();

if(isset ($_SESSION["admin_login"]))
{
    header ("location:.../index.php");
}

if(isset ($_SESSION["parent_login"]))
{
    header ("location:parent/parent_home.php");
}

if(isset ($_SESSION["swimmer_login"]))
{
    header ("location:swimmer/swimmer_home.php");
}

if(isset ($_SESSION["admin_login"]))
{
 ?>
Welcome,
<?php
echo $_SESSION ['admin_login'];

}
?>

<a href = "../logout.php">Logout</a>

parent_home.php

PHP:

<style type = "text/css">

body {
    padding:0;
    margin:0;
    background:
}
    
h1 {

    font-size:5em;
    margin:0;
    padding:0;
    text-align:center;
    font-family: 'arial';
    position:absolute;
    top:50%;
    left:50%;
    transform: translateX(-50%);

}

</style>
</body>

<body>
<h1> This is the Parent Page </h1>
</body>

<?php

session_start();

if(isset ($_SESSION["parent_login"]))
{
    header ("location:.../index.php");
}

if(isset ($_SESSION["admin_login"]))
{
    header ("location:.../admin/admin_home.php");
}

if(isset ($_SESSION["swimmer_login"]))
{
    header ("location:.../swimmer/swimmer_home.php");
}

if(isset ($_SESSION["parent_login"]))
{
 ?>
Welcome,
<?php
echo $_SESSION ['parent_login'];

}
?>

<a href = "../logout.php">Logout</a>

swimmer_home.php

PHP:

<style type = "text/css">

body {
    padding:0;
    margin:0;
    background:
}
    
h1 {

    font-size:5em;
    margin:0;
    padding:0;
    text-align:center;
    font-family: 'arial';
    position:absolute;
    top:50%;
    left:50%;
    transform: translateX(-50%);

}

</style>
</body>

<body>
<h1> This is the Swimmer Page </h1>
</body>

<?php

session_start();

if(isset ($_SESSION["swimmer_login"]))
{
    header ("location:.../index.php");
}

if(isset ($_SESSION["admin_login"]))
{
    header ("location:.../admin/admin_home.php");
}

if(isset ($_SESSION["parent_login"]))
{
    header ("location:.../parent/parent_home.php");
}

if(isset ($_SESSION["swimmer_login"]))
{
 ?>
Welcome,
<?php
echo $_SESSION ['swimmer_login'];

}
?>

<a href = "../logout.php">Logout</a>

logout.php

PHP:

<style type = "text/css">

body {
    padding:0;
    margin:0;
    background:
}
    
h1 {

    font-size:5em;
    margin:0;
    padding:0;
    text-align:center;
    font-family: 'arial';
    position:absolute;
    top:50%;
    left:50%;
    transform: translateX(-50%);

}

</style>
</body>

<body>
<h1> This is the Swimmer Page </h1>
</body>

<?php

session_start();

if(isset ($_SESSION["swimmer_login"]))
{
    header ("location:.../index.php");
}

if(isset ($_SESSION["admin_login"]))
{
    header ("location:.../admin/admin_home.php");
}

if(isset ($_SESSION["parent_login"]))
{
    header ("location:.../parent/parent_home.php");
}

if(isset ($_SESSION["swimmer_login"]))
{
 ?>
Welcome,
<?php
echo $_SESSION ['swimmer_login'];

}
?>

<a href = "../logout.php">Logout</a>

OldMan · May 11, 2022

Just looking at your main HTML page I see that you don't have a destination for your form. You need an "action" attribute to give it a place to be submitted.
You also have method as POST but in the PHP file you are looking for GET.

Code:

if (isset ($_GET['btn_login'])) {

    $email = $_GET ["txt_email"];

$password = $_GET ["txt_password"];

$email = $_GET ["txt_role"];

Not sure if you close the if statement.

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PHP My Multi User Login System Won't Work

Brandon3000

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