Member Avatar for musicmancanora4 
Hey guys im not sure how this isset code is working and what each if statement is testing.

a clear explanation would help.

cheers


****ViewProductDetails.php****
Code:

<?php
session_start();
?>
<html>
<body>
<?php


if (isset($_POST['submit']))
{

  if($_SESSION['item']==$_POST['h1'])
{
  $_SESSION['qty'] = $_SESSION['qty'] + 1;
}
else
{
  $_SESSION['item'] = $_POST['h1'];
  $_SESSION['price']= $_POST['h2'];
}

 $_SESSION['itemname'][$_SESSION['item']] = $_SESSION['item'];
 $_SESSION['itemqty'][$_SESSION['item']] = $_SESSION['qty'];
 $_SESSION['itemprice'][$_SESSION['item']] = $_SESSION['price'];

}




?>
<table>
<tr>
<td>
<img src="eric.jpg"/>
</td>
<td>This product is on clearance. New stock needs to come in and all the old stock needs to go. Hurry till offers end!!</td></tr>
<tr><td><form action="erricsson.php" method="post"><input type="submit"
name="submit" value="Add to cart"/><input type="hidden" name="h1"
value="k508i" /><input type="hidden" name="h2" value="400"/></form> </td></tr>
</table>

<a href="cart.php">View your cart</a>
</body>
</html>
  • 3 Contributors
  • 3 Replies
  • 117 Views
  • 6 Hours Discussion Span
  • Latest Post Latest Post by vibhaJ
Member Avatar for cwarn23

Please post a description of what the problem is and what errors you are receiving. In case you are wondering how many words are necessary I would say 32 or more.

Member Avatar for musicmancanora4

Okay im not getting any specific errors im just trying to study the code itself to better understand what its doing.

if (isset($_POST['submit']))
{
 
if($_SESSION['item']==$_POST['h1'])
{
$_SESSION['qty'] = $_SESSION['qty'] + 1;
}
else
{
$_SESSION['item'] = $_POST['h1'];
$_SESSION['price']= $_POST['h2'];
}
 
$_SESSION['itemname'][$_SESSION['item']] = $_SESSION['item'];
$_SESSION['itemqty'][$_SESSION['item']] = $_SESSION['qty'];
$_SESSION['itemprice'][$_SESSION['item']] = $_SESSION['price'];
 
}
Member Avatar for vibhaJ 
if (isset($_POST['submit'])) // when form is submitted
{
 
    if($_SESSION['item']==$_POST['h1']) // if "h1" input's value is same as item stored in session (2*: see below)
    {
    	$_SESSION['qty'] = $_SESSION['qty'] + 1; // then increament qty stored in session
    }
    else // if h1's value is not matching with session (1*: see below)
    {
    	$_SESSION['item'] = $_POST['h1']; // then save "h1"'s value in item session
    	$_SESSION['price']= $_POST['h2']; // save "h2"'s value in price session
    }
    // below is setting session array
    $_SESSION['itemname'][$_SESSION['item']] = $_SESSION['item'];
    $_SESSION['itemqty'][$_SESSION['item']] = $_SESSION['qty'];
    $_SESSION['itemprice'][$_SESSION['item']] = $_SESSION['price'];
     
}

If this is related to cart then below is the meaning:
1*: if you are first time adding product to cart then it will create session
2*: if item is already in cart then increament item's quantity.

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