Hi. Today I’m coding a simple registration form and it is divided in 3 parts (3 pages). I want to restrict the access on some pages to don’t miss a step (example: I’m doing the 1st step but I want to go directly to the 3th step, so I write in the address box “www.mysite.com/registration.php?page=3” but I want that it prints “Sorry, you must complete the step 1 and 2.” or similiar…).
Thanks for your useful support.
Hi there,
You might want to use sessions to accomplish this. Suppose you have these files:
register.html
register.php
register_final.php
register.html is the first landing page where users have to provide user info and process it with register.php.
Now under register.php, you may create a session variable (as token) to be use for register_final.php. Your register.php should look like this:
[php]
$email=$_POST[‘email’]; //form data from register.html
if (!isset($email)){
//prompt and redirect to register.html
}
else{
$_SESSION[‘email’]=$email;
//the rest of register.php code here
}
[/php]
In register_final.php:
[PHP]
if (!isset($_SESSION[‘email’])){
//prompt and redirect to register.html
}
else{
//the rest of register_final.php code here
}
[/PHP]
Those simple lines ensure that users will not miss a step during registration.
Cheers.
Thanks man. It works!
Uh. There is a bug about a part of my code. It should says the errors when I don’t write in all inputs.
This is the code:
form:
[php]
| Username: | Scrivi secondo questo esempio: Nome_Cognome | |
| Password: | La Password per accedere al tuo account. | |
| Confirm Password: | Ridigita la tua Password scritta precedentemente. | |
| Email: | Scrivi la tua email per contattarti in futuro. | |
| “); echo(’’+$error+’’); echo(” |
This is the “get error” code:
[php]$_GET[‘error’] = $interror;
if($interror == 1)
{
$error = “The account exist.”;
}
elseif($interror == 2)
{
$error = “Passwords don’t match.”;
}
elseif($interror == 3)
{
$error = “You must write in all inputs”";
}[/php]
I used the $_GET[‘error’] because I used this code to find the error (it’s a part of checkdata.php):
[php]if(isset($_POST[‘username’]) && isset($_POST[‘pass’]) && isset($_POST[‘pass2’]) && isset($_POST[‘email’]))
{
if($_POST[‘pass’] == $_POST[‘pass2’])
{
if(!$result || !$result2)
{
header(“location:reg.php?error=1”);
}
else
{
header(“location:final.php”);
}
}
else
{
header(“location:reg.php?error=2”);
}
}
else
{
header(“location:reg.php?error=3”);
}[/php]
It says only “0”.
Since you used POST as your method, you should use $_POST function to collect values from your form. Your checkdata.php should look like this:
[PHP]
$username=$_POST[‘username’];
$pass=$_POST[‘pass’];
//perform your query here…
[/PHP]
Ok. This is the full code of my checkdata.php file. But the $error value in the reg.php file says only “0”.
New bug: checkdata.php says HTTP 500 Internal Server Error
Code of checkdata.php:
[php]<?
include(“include/_functions.php”);
include(“include/_connector.php”);
include(“include/_structure.php”);
session_start();
session_regenerate_id(TRUE);
$name = $_POST[‘username’];
$password = numhash($_POST[‘pass’]);
$password2 = numhash($_POST[‘pass2’]);
$email = $_POST[‘email’];
$query = “SELECT * FROM users WHERE LOWER(Name) = LOWER(’$name’)”;
$query2 = “SELECT * FROM users WHERE email = $email”;
$result = mysql_query($query);
$result2 = mysql_query($query2);
if(isset($name) && isset($password) && isset($password2) && isset($email))
{
if($password == $password2)
{
if(!$result || !$result2)
{
header(“location:reg.php?error=1”);
}
else
{
header(“location:final.php”);
}
}
else
{
header(“location:reg.php?error=2”);
}
}
else
{
header(“location:reg.php?error=3”);
}
?>[/php]
Seems like you’ve a perfect code. By the way, it would be a great help if you could print full error message upon querying the database. Just call mysql_error() function to do this, as follows:
[PHP]
$result=mysql_query($query) or die(mysql_error());
$result2=mysql_query($query2) or die(mysql_error());
[/PHP]
You may want to try this much simpler codes for your checkdata.php:
[PHP]<?php
include(“include/_functions.php”);
include(“include/_connector.php”);
include(“include/_structure.php”);
session_start();
session_regenerate_id(TRUE);
$name=$_POST[‘username’];
$password=numhash($_POST[‘pass’]);
$password2=numhash($_POST[‘pass2’]);
$email=$_POST[‘email’];
if(isset($name) && isset($password) && isset($password2) && isset($email)){
if($password==$password2){
$query=“SELECT * FROM users WHERE LOWER(Name)=LOWER(’$name’)”;
$query2=“SELECT * FROM users WHERE email=$email”;
$result=mysql_query($query) or die(mysql_error());
$result2=mysql_query($query2) or die(mysql_error());
if(!$result || !$result2){
Header(‘Location:reg.php?error=1’);
}
else{
Header(‘Location:final.php’);
}
}
else{
Header(‘Location:reg.php?error=2’);
}
}
else{
Header(‘Location:reg.php?error=3’);
}
?>
[/PHP]
Don’t forget to start your PHP scripting block with <?php – for best practice… 
OK, solved!
Now I have the $error var bug… it says only “0”. How can I solve it?
I’m wonderin either how did you get that 0 as $error value. But anyway, how did you extract the value for ‘error’ variable in this URL: “reg.php?error=1”?
In your reg.php file, you may use GET method to pull the value being passed in the URL like $error=$_GET[‘error’];
Solved.
New bug ( :’(): The Logout page doesn’t work…
This is the code…
[php]<?php
session_start();
include(“inc/functions.php”);
setcookie(‘username’, $name, time()-86400);
setcookie(‘pass’, $pass, time()-86400);
setcookie(‘sessionlog’, $s_log, time()-86400);
session_destroy();
?>[/php]
As I understand it, you want to create cookie first (which will expire the next 24 hours) before finally killing current sessions.
Here’s my solution for you:
[php]
[/php]
It says only “not connected” now.
New bug: I’m coding the Terms and Conditions page and I want the user must click on the checkbox (I accept) and then click on submit button. But it doesn’t work…
This is the form code:
[php]
I accept.
This is the check function:
[php]if(isset($_POST[‘accept’]))
{
header(“location:?p=index&sub=register&step=steptwo”);
}
else
{
echo(“”);
}[/php]
Something’s wrong with your form action. Replace it with:
[php]
Your checkdata.php should look something like this:
[php]
if($_POST[‘step’]==‘stepone’){
if(isset($_POST[‘accept’])){
//redirect to step 2
}
else{
// alert
}
}
[/php]
Thanks a lot for your support :D.
New bug (I’m sorry if I’m going in off topic…):
This is a part of the registration, but it says the inputs are empty…
This is the code:
[php]elseif($step == “steptwo”)
{
$perreg = “10%”;
$interror = $_GET[‘error’];
if($interror == 1)
{
$error = “Account exist!”;
}
elseif($interror == 2)
{
$error = “Passwords don’t match.”;
}
elseif($interror == 3)
{
$error = “You must complete all the form!!”;
}
else
{
$error = “”;
}
echo(“
| username: | |
| Password: | |
| Conferma la Password: | |
| Email: |
if($_GET['username'] == "" || $_GET['pass'] == "" || $_GET['pass2'] == "" || $_GET['email'] == "")
{
header("location:?p=index&sub=register&step=steptwo&error=3");
}
else
{
if($result != $_GET['username'] || $result2 != $_GET['email'])
{
$_SESSION['username'] = $_GET['username'];
$_SESSION['password'] = $_GET['password'];
$_SESSION['email'] = $_GET['email'];
header("location:?p=index&sub=register&step=stepthree");
}
else
{
header("location:?p=index&sub=register&step=steptwo&error=1");
}
}
}[/php]Solved.
I have now a little problem. I made a function that randomize a numer and select the question to print but it don’t work…
I want to do a quiz with random questions.
This is the function:
[php]function onRandomQuestionQuiz()
{
$tot_question = 75;
switch(rand(1, $tot_question))
{
case 1:
{
$question = “Che significa Role play?”;
$answerA = “Gioco di ruolo”;
$answerB = “Gioco a gruppo”;
$answerC = “Gioco rolloso”;
$answerD = “Non ne ho idea”;
$answer = “A”;
}
case 2: [other questions…][/php]
Now I want to print these vars to the register page, but how do I do it?