PHP: Foreach echo not showing correctly - php

Question

The output should look like this:
1. Yougurt 4 units price 2000 CRC
But I'm currently getting this:
item. Y Y unitsYquantity. 3 3 units3code. S S unitsSprice. units
This is the script:
<?php
session_start();
//Getting the list
$list[]= $_SESSION['list'];
//stock
$products = array(
'Pineaple' => 500, 'Banana' => 50, 'Mango' => 150,
'Milk' => 500, 'Coffe' => 1200, 'Butter' => 300,
'Bread' => 450, 'Juice' => 780, 'Peanuts' => 800,
'Yogurt' => 450, 'Beer' => 550, 'Wine' => 2500,
);
//Saving the stuff
$_SESSION['list'] = array(
'item' => ($_POST['product']),
'quantity' => ($_POST['quantity']),
'code' => ($_POST['code']),
);
//price
$price = $products[($_SESSION['list']['item'])] * $_SESSION['list']['quantity'];
$_SESSION['list']['price'] = $price;
//listing
echo "<b>SHOPPIGN LIST</b></br>";
foreach($_SESSION['list'] as $key => $item)
{
echo $key, '. ', $item['item'], ' ', $item['quantity'], ' units', $item['price'];
}
//Recycling list
$_SESSION['list'] = $list;
echo "</br> <a href='index.html'>Return to index</a> </br>";
//Printing session
print_r($_SESSION);
?>

Answer 1

The problem is that you are nested 1 level deeper in the arrays than you think you are. To make it clear, the $_SESSION may look lik this (just before entering the foreach):
array(1) {
["list"] => array(3) {
["item"] => string(8) "Pineaple"
["quantity"] => int(30)
["price"] => int(15000)
}
}
(you can use var_dump($var) or print_r($var) methods to see the value: http://php.net/manual/en/function.var-dump.php http://php.net/manual/en/function.print-r.php)
When iterating over $_SESSION["list"], you pass the loop 3 times. In the first iteration, $key is "item", $value "Pineaple".
echo $key, '. ', $item['item'], ' ', $item['quantity'], ' units', $item['price'];
"item . P P units <empty>"
Why?
String "item" is obvious, it's just printed out.
$item['item'] -> 'item' is cast to (int)0, so the first character of $item (Pineaple) is printed: P
(The examples of string->int conversion rules are for example here: http://www.php.net/manual/en/language.types.string.php#language.types.string.conversion)
$item['quantity'] -> the same as above
$item['price'] -> since the price is much higher than the length of the string, empty string is printed:
$myvar = "hi";
echo $myvar[12234]; // prints empty string
In every iteration you get this output, just the first word is changing. Put echo "<br />" at the end of the iteration and you will see it.
I hope this helps you a bit.