PHP - Session Help

Evening!

I've been iffing and ahhing over this and well im not too sure, hence the post.

Code: [Select]
// Redirects if there is no session id selected and echos the error on the previous page
if(!isset($_GET['get']) || ($_GET['getget'])){
header("Location: #.php?error");
}
So it should simply check if get is set if it isnt then see if getget is set?

If not redirect and show the error.

Now ive tried it and even when get/getget is set it still redirects, probably something silly. Care to share anyone?

Harry.

Just curious how other people feel about this.  I am working on an application where a lot of info is pulled from MySQL and needed on multiple pages.     Would it make more sense to...   1.  Pull all data ONCE and store it in SESSION variables to use on other pages    2.  Pull the data from the database on each new page that needs it   I assume the preferred method is #1, but maybe there is some downside to using SESSION variables "too much"?   Side question that's kind of related:  As far as URLs, is it preferable to have data stored in them (i.e. domain.com/somepage.php?somedata=something&otherdata=thisdata) or use SESSION variables to store that data so the URLs can stay general/clean (i.e. domain.com/somepage.php)?   Both are probably loaded questions but any possible insight would be appreciated.   Thanks! Greg
Edited by galvin, 04 November 2014 - 10:30 AM.

Hi guys help please

Code: [Select]

foreach($_SESSION['cart'] as $id => $value){

}

is this valid?
im getting error

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\shopping cart\new_cart.php on line 48

Many thanks

Hi,
I am trying to get the value of a session veriable and if the variable contains a certain word it will show an error message, else just continue as normal.


if (isset($_POST['selectroom']))
{$_SESSION['room'] = $_POST['selectroom'];}
if (!isset($_SESSION['room']))
$room = "RoomNameA";
else
$room = $_SESSION['room'];


Please Advise,
 - Stuart

How to add more data into $_SESSION? I have following code:
Code: [Select]
if(isset($_GET['poredi']) && $_GET['poredi'] == "upo"){
$idp = intval($_POST['idp']);
$sql = "SELECT * FROM product
WHERE product_id={$idp}";
$query=mysql_query($sql);
if(mysql_num_rows($query)!=0){
$row=mysql_fetch_array($query);
$_SESSION['poredi'] = $row['product_id'];

}
}

On click it need to store more product_id, and after that i have to be able to do query with data (find all data with product_id)?

I am building an app (PHP and MySQL)and I had been using a lot of GET calls to get info from URLs, but the more I thought about it, the more I didn't like the possibility of people being able to mess with the URLs.  So I am in the process of changing everything to use SESSION variables to store data across pages, rather than GET.   The way I see it, SESSION variables are completely behind the scenes so they seem to be the better option.  Am I right, or is GET better than SESSION for some reason?

Hi
I am looking for help with a working script to input multiple lines of data , but i am looking for each line of data to have the $_SESSION[userid] entered into each line, ie into the table $_SESSION[userid], name, surname, age

Many Thanks


<?

include "include/session.php";

include "include/z_db.php";

// check the login details of the user and stop execution if not logged in
require "check.php";

// If member  has logged in then below script will be execuated. 
// let us collect all data of the member 
$row=mysql_fetch_object(mysql_query("select * from plus_signup where userid='$_SESSION[userid]'"));



if(isset($_POST['submit']))
{    foreach($_POST['person'] as $person)  
 
{        
        $name= mysql_real_escape_string($person['name']);    
         $surname= mysql_real_escape_string($person['surname']);       
     $age= mysql_real_escape_string($person['age']);                
      $values[] = "('$name', '$surname', '$age')";    }       
      $query = "INSERT INTO plus_signup (name,surname,age) VALUES "    . implode(', ', $values); 
  $result = mysql_query($query) or die("Error!<br />Query: $query<br />Error: " . mysql_error()); 
  
  
  }
  


?>    


<form method="POST" action='multi.php' name="">
<table>
<tr>

<td>Name<input type="text" name="person[0][name]"></td>
<td>surname<input type="text" name="person[0][surname]"></td>
<td>age<input type="text" name="person[0][age]"></td>
</tr>
<tr>
<td>name<input type="text" name="person[1][name]"></td>
<td>surname<input type="text" name="person[1][surname]"></td>
<td>age<input type="text" name="person[1][age]"></td>
</tr>
<tr>
<td>name<input type="text" name="person[2][name]"></td>
<td>surname<input type="text" name="person[2][surname]"></td>
<td>age<input type="text" name="person[2][age]"></td>
</tr>
</table>

<td><p>
  <input type="submit" name="submit" value="add">
</p>
  
  <p>&nbsp;</p>| &nbsp; <a href=update-profile.php>back</a>|
</form>



<?

require "bottom.php";


?>
<center><br>| &nbsp; <a href=update-profile.php>back</a>|<br></center> 

</body>

</html>

I am having trouble calling the  session var "email" from the landing page. Here is the code that I am using. I am not even sure the session "email" is starting or registering.

Code: [Select]
$referer = $_SERVER['HTTP_REFERER'];

$email = $_POST['email'];

$sql="SELECT * FROM users WHERE email='$email' ";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $email, table row count must be 1 row

if($count==1){
// Session Register email
session_start();
  $_SESSION['email'] = $email;

header("location:".$referer2." ");
exit();
 }

Pls tell me what is wrong?

<?PHP
include("dba.php");

function hvataj ($trazi, $id)
{
$upit = mysql_query ('select * from administrator where member_id = '.$id.'');

return ( $row = mysql_fetch_assoc ($upit)  ) ? $row[$trazi] : mysql_error ();
}
?> 

I have parse error here on this line when I want to echo it:

<?PHP echo "<img src='images/korisnik_slike/".hvataj('slika',$_SESSION['member_id']."' />"; ?>

Hello everyone

I have the following code

$num = 1;
$query = mysql_query("SELECT * FROM people");
while($row = mysql_fetch_array($query))
{
$nums = $num++;
$_SESSION['equal'.$nums.''] = $row['name'];
$_SESSION['total'.$nums.''] = $row['age'];
}

which basically returns me SESSION names by increasing by 1, so it could produce the following session names

Code: [Select]
equal1
total1
equal2
total2
equal3
total3
equal4
total4
instead of setting those as sessions, I simply want to set them as vars, so instead of

$_SESSION['equal'.$nums.''] = $row['name'];
$_SESSION['total'.$nums.''] = $row['age'];

it would look like

$equal.$nums = $row['name'];
$total.$nums = $row['age'];

I have tried

$equal.$nums = $row['name'];
$total.$nums = $row['age'];

but it doesn't seem to work

any ideas?

thanks

Why is my SESSION not getting set in the code below?!

Code: [Select]
<?php
// Initialize a session.
session_start();

// Initialize Logged-In Status.
$_SESSION['loggedIn'] = FALSE;

// Display Logged-In Status.
echo '<p>$_SESSION[\'loggedIn\'] = ' . $_SESSION['loggedIn'] . '</p>';

exit();

When I run this I get...

$_SESSION['loggedIn'] =


Debbie

Is there anyway to work out the age of a session, i.e the time that has elapsed since it was created?

Cheers

I'm trying to make my own shopping cart for the first time and having a problem getting products to add to it. All I get is "No product in cart.".
Its nothing special now, I'm just trying to reach the first stepping stone of adding something successfully to the session.

index.html
Code: [Select]
<?php session_start(); ?>
<?php
$cart = $_SESSION['cart'];
if (!$cart) {
echo "No product in cart.";
}
if ($cart) {
foreach ($id) {
echo $id;
}
}
?>
<A href="index.html?action=add&id=1">Add to cart</A>
What have I done wrong and what am I suppose to do?

Code: [Select]
<?php

session_start();
if(!session_is_registered(myusername)){
header("location:./default.php");
}

?>

My session works fine but I am just wondering how I can echo the current sessions username?

Thanks

People please help me i beg you, been trying to do this same thing for the past 4hours (-) close to giving up on php and learning a new languages :S

Well as I was updating my login/sign up because its old and it was not very safe.

Now my session are not working, well they work when i set them but it wont destroy so you cant log out. I have tryed doing 100 ways but i get one error or another or it dont work out all.

login page

<?php session_start();

require_once "../config.php"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>



<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Admin CP</title>





<?php

$flag=0;
if(isset($_POST['Submit']))
{
$con = database_connect();


$username = $_POST['username'];
$password = $_POST['password'];
clean($username);
clean($password);
$username = mysql_real_escape_string($username);
$password = mysql_real_escape_string($password);
mysql_close($con);
$md5password= md5($password);

database_connect();

$sql="select * from $membertables WHERE username='$username' and password='$md5password' and (userlevel='1' or userlevel='2') ";
$res=mysql_query($sql);
if(!$res)
{
die('error in database');
}
$row=mysql_fetch_array($res);
if(mysql_num_rows($res)>0)
{

$_SESSION['logged_in'] ="loggedin";
$_SESSION['userid']=$row['uid'];
$_SESSION['username']=$row['username'];
$_SESSION['userlevel']=$row['userlevel'];
session_write_close();
header('location:welcome.php');
}
else
{
$_SESSION['logged_in'] = "notloggedin";
$flag=1;
}
}
?>


 
<script language="javascript">
function valid()
{
if(document.frm1.txtuname.value=="")
{
alert('Enter User-ID');
document.frm1.txtuname.focus();
return false;
}
if(document.frm1.txtpass.value=="")
{
alert('Enter Password');
document.frm1.txtpass.focus();
return false;
}
}
</script>


<!-- CSS -->
<link href="style/css/transdmin.css" rel="stylesheet" type="text/css" media="screen" />
<!--[if IE 6]><link rel="stylesheet" type="text/css" media="screen" href="style/css/ie6.css" /><![endif]-->
<!--[if IE 7]><link rel="stylesheet" type="text/css" media="screen" href="style/css/ie7.css" /><![endif]-->

<!-- JavaScripts-->
<script type="text/javascript" src="style/js/jquery.js"></script>
<script type="text/javascript" src="style/js/jNice.js"></script>
</head>

<body>

<div id="wrapper">
    

<!-- h1 tag stays for the logo, you can use the a tag for linking the index page -->
    

<h1><a href="#"><span>Transdmin Light</span></a></h1>
        
        <!-- You can name the links with lowercase, they will be transformed to uppercase by CSS, we prefered to name them with uppercase to have the same effect with disabled stylesheet -->
        <ul id="mainNav">
        

<li></li> 
        

<!-- Use the "active" class for the active menu item  -->
        

<li></li>
        

<li></li>
        

<li class="logout"></li>
        </ul>
        <!-- // #end mainNav -->
        
  <div id="containerHolder">

<div id="container"><!-- // #sidebar -->

                <!-- h2 stays for breadcrumbs -->
              <h2>Login &raquo;</h2>
                
              <div id="main">
              
              
                  <form action="index.php" method="post" name="frm1" id="frm1" onSubmit="return valid();">

                <table width="100%" border="0" cellpadding="0" cellspacing="0"">
                 
                    
                    <tr>
                      <td align="left"><table border="0" cellpadding="5" cellspacing="1" width="576">
                       
                       
                        <tbody>
                          <tr>
                            <td colspan="2" align="center"><br />
                              Please enter your User Name and password below.<br /></td>
                          </tr>
                          
                          
                          
                          <?php   if($flag==1)  {  ?>
                          <tr>
                            <td width="333" align="center" style="background-color: #F00; text-decoration: underline; color: #FF0;" ><p>Enter Valid User-Name or Password </p></td>
                          </tr>
                          
                          
                          
                          <?php

}

?>
                          
                          
                          
                          <tr>
                            <td align="right" >User Name:</td>
                            <td width="344"><input style="background-color: rgb(221, 234, 248);" class="form_text" id="username" name="username" />
                            <script language="JavaScript" type="text/javascript">document.getElementById('txtuname').focus(); </script></td>
                          </tr>
                          
                          
                          <tr>
                            <td align="right">Password:</td>
                            <td><input class="form_text" id="password" name="password" type="password" /></td>
                          </tr>
                          
                          
                          <tr>
                            <td>&nbsp;</td>
                            <td> <input class="buttons" value="sign me in" name="Submit" type="submit" id="Submit" /> </td>
                          </tr>
                          
                          <tr>
                            <td style="height: 30px;">&nbsp;</td>
                            <td>&nbsp;</td>
                          </tr> 
                           
                      </table>
                      </td>
                    </tr>
                 </tbody>
                </table>
             
                </form>
              </div>
                <!-- // #main -->
                
              <div class="clear"></div>
            </div>
            <!-- // #container -->
        </div>

        <!-- // #containerHolder -->
        
        <p id="footer"><?php echo $footer ?></p>
    </div>
    <!-- // #wrapper -->
</body>
</html>





<?php
session_start();
if($_SESSION['logged_in']="loggedin");
else{

 header('location:index.php');
}

?>





sign out page

<?php
session_start();

session_unset();
session_destroy();
header('location:index.php');
?>