How can I send url where I use sessions? - php

Question

I use sessions in the products site. My problem is how can I send the single products datasheet site's url.
In the product datasheet site, I fill up the sessions when I click on a product's image in the index site:
<?php session_start(); include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_COOKIE['image_src']."'");
while ($f = mysql_fetch_array($sql))
{
$_SESSION['fid'] = $f['id']; //product id
$_SESSION['fimg'] = $f['image']; //product image
$_SESSION['fname'] = $f['name']; //product name
$_SESSION['fdecription'] = $f['decription']; //product description
$_SESSION['fcategory'] = $f['category']; //product category
}
?>
Than the same site I write out the sessions (the product infos):
e.g:
<?php session_start(); print ($_SESSION[fname]);
echo "<img src='".$_SESSION['fimg']."' height='350' width='250'>";?>
But this way always the last clicked products infos will be in the sessions.
And I can't open more than one product's datasheet at the same time.

Answer 1

You just need to create another "level" to your session array:
<?php
session_start();
include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_COOKIE['image_src']."'");
# Create a counter variable
$counter = 0;
while ($f = mysql_fetch_array($sql))
{
$_SESSION[$counter]['fid'] = $f['id']; //product id
$_SESSION[$counter]['fimg'] = $f['image']; //product image
$_SESSION[$counter]['fname'] = $f['name']; //product name
$_SESSION[$counter]['fdecription'] = $f['decription']; //product description
$_SESSION[$counter]['fcategory'] = $f['category']; //product category
# Increment the counter
$counter++;
}
?>
Then on the page which you want to view the images, just loop that array:
<?php
for( $i=0; $i<count($_SESSION); $i++ )
{
...
echo '<img src="'.$_SESSION[$i]["fimg"].'">';
...
}
?>
Multi-dimensional Arrays
PHP Docs - Arrays

Answer 2

I solve the problem:
Firstly I have to call the page this way: index.php?image_src=XY
Then I need to use $_GET insted of $_COOKIE.
Finally with this way the sessions are unnecessary.
<?php include "connection.php";
$sql = mysql_query("SELECT * FROM products WHERE img = '".$_GET['image_src']."'");
while ($f = mysql_fetch_array($sql))
{
$fid = $f['id']; //product id
$fimg = $f['image']; //product image
$fname = $f['name']; //product name
$fdecription = $f['decription']; //product description
$fcategory = $f['category']; //product category
}
?>
And I can write out the datas:
<?php echo "<img src='".$fimg."' height='350' width='250'>";
echo "$fdecription";
?>