PHP - If $_get && $_session Not Listening To Me Lol.

Hello everyone, I am working on a form that is similar to a shopping cart system and I am thinking of creating a button that submits the checked value and saves them to a $_SESSION variable. And also a link that links to a cart.html that takes the values of a $_SESSION variable. I am have trouble figuring what tag/attribute should I use in order to achieve that.   Right now my code attached below submits the checked values to cart.html directly. However I want my submit button to save the checked box to a $_SESSION variable and STAY on the same page. And then I will implement a <a> to link to the cart.php.   I researched a little bit about this subject and I know it's somewhat related to ajax/jquery. I just wanted to know more about it from you guys. I appreciate your attention for reading the post and Thanks!   Below is the form that I currently have:

<form name= "finalForm" method="POST" action="cart.php">
<input type="Submit" name="finalSelected"/>

<?php foreach($FinalName as $key => $item) {?>
<tr>
<td><input type="checkbox" name="fSelected[]" value="<?php echo htmlspecialchars($FinalID[$key])?>" />
<?php echo "$FinalID[$key] & $item";?>
</td>
</tr>
<?php } ;?>

Below is the code for cart.php

<?php
require ('connect_db.php');
if(isset($_POST['finalSelected']))
{
	if(!empty($_POST['fSelected']))
	{
		$chosen = $_POST['fSelected'];
		foreach ($chosen as $item)
			echo "aID selected: $item </br>";
		$delimit = implode(", ", $chosen);
		print_r($delimit);
	}

}
if(isset($delimit))
{
$cartSQL = "SELECT * from article where aID in ($delimit)";
$cartQuery = mysqli_query($dbc, $cartSQL) or die (mysqli_error($dbc));
while($row = mysqli_fetch_array($cartQuery, MYSQLI_BOTH))
{
	$aTitle[] = $row[ 'name' ];
}
}
?>

<table>
	
		<?php if(isset($delimit)) { 
		$c=0; foreach($aTitle as $item) {?>
		<tr>
		<td>
			<?php echo $aTitle[$c]; $c++;?>
		</td>
		</tr>
		<?php }}?>
</table>

A few months ago, and a good amount of time before that, I had people telling me to use isset() instead of performing to see if the variable is empty, such as: !$_GET['']

I know the differences in the function and what they do, but when could isset() be used in a situation where it's better/more efficient then: !$_GET['']

I do use isset(), though.

The $_Session has a url variable. Using a Dom how do I properly do:

Code: [Select]
html->load($_SESSION['variable'])

I was thinking about breaking down the session to retrieve the value inside but I don't know how.


 

edited

For the last few hours I have been pulling my hair out on a session not storing when I moved from local host to my vps.

I have been setting sessions like:


$_SESSION['mydata'] = $variable;


This works no problem on my wamp installation.

However to get it to work on my vps, I have to store them like this


$_SESSION[mydata] = $variable;


Can someone please explain to me why this is the case?

PHP 5.3.3

I am trying to redirect a user (currently logged in) to a page where they are able to edit a posted comment.

To keep things secure I am using a forms hidden input value to pass the {postID} to a redirect page

Code: [Select]
<form name="post_edit" method="post" action="post-edit-redirect.php" >
<input type="hidden" name="local" id="local" value="<?php echo $row_rsPosts['postID']; ?>" />
<input type="image" src="../imgs/managepost.png" name="submit" />
</form>

On the redirect page (simplified below) I am setting the {postID} in a SESSION before redirecting to the user to the page to edit their post with the new $_SESSION val for {postID} set.

Code: [Select]
session_start();
$id = $_REQUEST['local'];
$_SESSION['postID']=$id;
header("Location: edit-post.php");

This is working fine in every browser except IE (some one please just put an end to it), where when the edit-post.php page is reached the $_SESSION['postID'] is empty.  If I regenerate the session ID from the redirect page as below IE then sets the SESSION ok.

Code: [Select]
session_start();
session_regenerate_id();
$id = $_REQUEST['local'];
$_SESSION['postID']=$id;
header("Location: edit-post.php");

However there should be no need to do this and would rather not if there is no need.

Any help on why IE is not setting the SESSION is appreciated, and I hope I am not covering old ground here however I am unable to find a solution anywhere. - Cheers

Hi i have made a login in system for a website iam trying to make. after you log  in im trying to display the members username via the $_session created in the check_login.php. but when i Echo or print_r the $_session all is get is  "welcome  array" its like its not passing any information via the $_session from page to page. here is my code thanks in advance.


Check_login.php
session_start();

// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=md5($_POST["mypassword"]);

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);

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

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
$_SESSION["myusername"]==$myusername;
$_SESSION["mypassword"];

header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}

?>

login_success.php

<?
session_start();
if($_SESSION['myusername']="$myusername"){
header("location:main_login.php");
}

Echo "welcome" . $_SESSION['$myusername'];

?>

thanks

Hey, i was reading some code and i find this:

if(stristr($_SESSION["s"]["user"]["asdasd"]),$someString)


How the double/triple [] in $_SESSION works ?

PS: I tryied to google it but it was kinda hard to search :X

Thanks.

Is it possible to add onto the value of a $_SESSION, rather replacing it?


$_SESSION['order']['cartcontenttext'] += echo 'Small: "'.$content['sizes'].'"';
$_SESSION['order']['cartcontenttext'] += echo 'Medium: "'.$content['sizem'].'"';
$_SESSION['order']['cartcontenttext'] += echo 'Large: "'.$content['sizel'].'"';


... so the result would be something like this:
echo $_SESSION['order']['cartcontenttext'];
Quote

Small: 1Medium: 3Large: 2

I have parts of my webpage protected with the following
Code: [Select]
session_start();
if(!isset($_SESSION['myusername'])){
header("Location:login.php");
} else {
$username = $_SESSION['myusername'];
}
How secure is this?

The goal is so people who don't have access to the page (don't have a login account) cannot get access

Thanks for any tips

Hello all,

I have this at the top of my page to ensure that only logged in users can see the content
Code: [Select]
if(!isset($_SESSION['myusername'])){
header("Location:login.php");
exit;
} else {
$username = $_SESSION['myusername'];
}

This, of course is checked in the login form against a database and only stored in $_SESSION once it's verified...

Now, my question is -- how secure is this? For example, could someone have $_SESSION['myusername'] set from another webpage, then navigate to mine and be able to see the protected content?

I, for some unknown reason, decided to attempt to build my first social networking website for my senior project. I am sort of a dumb dumb when it comes to PHP. For what I am currently working on now I need to display "members" that go to the same "school" and start in the same "semester" according to whomever is currently logged in. I understand $_SESSION['userid'] = mysql_insert_id(); is tracking the current user, but how would I track other information attached to that current user. The "school" and "semester" are tracked within tables outside of the "user" table.

Any help at all would be awesome. If you need anymore information let me know.

Thanks a trizillion.

What types of data can the $_SESSION cookie store? Objects? Resources? And how are these stored in text form?

hello all, hoping someone can help, i am still pretty new to php and i am stuck on creating a php cart.
the code i have below is working, but the problem i am having is i need a store in the session array i am struggling to get my head around it so hoping someone can help here.
i am hoping to have $product_id (which is currently in) $option1,2,3 and $text (for a textarea box)
heres my function file
function get_product() { echo "Hello"; } function add_product() { $product_id = $_POST['product_id']; if ($product_id == 'NULL') { echo "No Product Selected!"; } if (isset($_SESSION['cart'][$product_id])) { $_SESSION['cart'][$product_id]++; echo "<script>window.location='product.php'</script>"; }else{ $_SESSION['cart'][$product_id] = 1; echo "<script>window.location='product.php'</script>"; } } function increase_product() { $product_id = $_GET['product_id']; $_SESSION['cart'][$product_id]++; echo "<script>window.location='cart.php'</script>"; } function decrease_product() { $product_id = $_GET['product_id']; $_SESSION['cart'][$product_id]--; echo "<script>window.location='cart.php'</script>"; } function empty_cart() { unset($_SESSION['cart']); echo "<script>window.location='cart.php'</script>"; } }()
my product page (currently with out the extra form items (option1,2,3 etc)
include '_class/cart.php';$core->session($mode = 'start');if(isset($_POST['buy'])){$cart->add_product();}?><!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>Product</title></head><body><?php $core->navbar();?><form method="post" action=""><input name="product_id" type="hidden" value="Coffee" /><h1>Cup Of Coffee</h1><p>Buy me you know you want too!</p><input name="buy" type="submit" value="Add To Basket" id="buy" /></form><form method="post" action=""><input name="product_id" type="hidden" value="Biscuits" /><h1>Barrel Of Biscuits</h1><p>When Coffee Just Gives You The Munchies!</p><input name="buy" type="submit" value="Add To Basket" id="buy" /></form></body></html>()
my include cart file
if (isset($_SESSION['cart'])) {//Session Cart foreach($_SESSION['cart'] as $product_id => $quantity){//Session Array if($quantity < 1){//Quantity Less Then 1 unset($_SESSION['cart'][$product_id]); echo "<script>window.location='cart.php'</script>"; }//End Quantity Less Then 1 if(!$_SESSION['cart']){//Cart Array Empty unset($_SESSION['cart']); echo "<script>window.location='cart.php'</script>"; }//End Cart Array Empty if ($product_id != NULL){//Show Products echo '<h1>' . $product_id . '</h1>'; echo "Quantity <br>"; ?><a href="cart.php?product_id=<?php echo $product_id; ?>&option=increase">+</a> <?php echo $quantity; ?> <a href="cart.php?product_id=<?php echo $product_id; ?>&option=decrease">-</a><?php }//End Show Products }//End Session Array require 'library/paypal.php'; }else{ echo "Your Basket Is Empty"; }//End Session Cart()
and my actual cart file

include '_class/cart.php';$core->session($mode = 'start');?><!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>Cart</title></head><body><?php$core->navbar(); if (isset($_GET['product_id']['option'])) { $product_id = $_GET['product_id']; $option = $_GET['option']; if ($option == 'decrease'){ $cart->decrease_product(); } if ($option == 'increase'){ $cart->increase_product(); } }elseif (isset($_GET['option'])){ $option = $_GET['option']; if ($option == 'empty'){ $cart->empty_cart(); } }else{ require 'library/cart.php'; }?><p><a href="cart.php?option=empty">Empty Cart</a></p></body></html>()


please explain answers or exmples as clear as possible thanks everyone

Hi i'm new to the forum and i'm wondering if anyone here could help me out with the problem i'm having. the script i have uses $_SESSION['userid'] = $users['id']; and i'm not exactly sure how to read that .. any information would be helpful. thanks in advance