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Adding item to shopping cart from array, data not carried over

Flic

By Flic
in PHP Coding Help

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Flic Newbie

Flic

Posted
Posted

Hi, I have some shopping basket code which works in that the item gets added to the shopping basket, but the information (name, price etc) isn't carried over.

 

I've only recently started learning php so am not sure why it doesn't work properly and would really appreciate it if someone could take a look and let me know where I am going wrong. It did work before but I heavily modified it for my needs hence it not working now . ???

 

Code that its being called from:

<?php$products = array();$products[1] = array("id"=>123,"name"=>"Silo Venting Filter","price"=>123.45,"sub"=>"venting_system", "desc"=>"A cylindrically shaped dust collector for venting of pneumatically filled silos, the stainless steel body contains vertically mounted filter elements. The air jet cleaning system is integrated in the hinged weather protection cover.");foreach($products as $p) {echo "<div class='acc'>";echo "<form method='post' action='cart.php'>";echo "<input type='hidden' name='id' value='".$p['id']."'/>";echo "<img src='images/".$p['sub'].".jpg' alt='".$p['name']."'>";echo "<div><h1><a class='silolink' href='accessories/".$p['sub'].".html'>".$p['name']."</a></h1>";echo $p['desc'];echo "<br><br>£".$p['price'];echo "<input type='submit' value='Add to cart' name='add'></form>";echo "</div></div>";}?>

 

The cart page:

<?phpsession_start();$cart =& $_SESSION['cart']; // point $cart to session cart.if(!is_object($cart)) $cart = new siloCart(); // if $cart ( $_SESSION['cart'] ) isn't an object, make a new cartclass siloCart {	var $total = 0;	var $itemcount = 0;	var $items = array();        var $itemprices = array();	var $itemqtys = array();        var $iteminfo = array();	function cart() {} // constructor function	function get_contents()	{ // gets cart contents		$items = array();		foreach($this->items as $tmp_item)		{		        $item = FALSE;			$item['id'] = $tmp_item;                        $item['name'] = $this->itemname[$tmp_item];			$item['price'] = $this->itemprices[$tmp_item];			$item['sub'] = $this->itemsub[$tmp_item];			$item['desc'] = $this->itemdesc[$tmp_item];			$item['subtotal'] = $item['qty'] * $item['price'];                        $items[] = $item;		}		return $items;	} // end of get_contents	function add_item($itemid,$qty=1,$price = FALSE, $info = FALSE)	{ // adds an item to cart		if($this->items[$itemid] > 0)                { // the item is already in the cart..		  // so we'll just increase the quantity			$this->itemqtys[$itemid] = $qty + $this->itemqtys[$itemid];			$this->_update_total();		} else {			$this->items[]=$itemid;			$this->itemqtys[$itemid] = $qty;			$this->itemprices[$itemid] = $price;			$this->iteminfo[$itemid] = $info;		}		$this->_update_total();	} // end of add_item	function edit_item($itemid,$qty)	{ // changes an items quantity		if($qty < 1) {			$this->del_item($itemid);		} else {			$this->itemqtys[$itemid] = $qty;		}		$this->_update_total();	} // end of edit_item	function del_item($itemid)	{ // removes an item from cart		$ti = array();		$this->itemqtys[$itemid] = 0;		foreach($this->items as $item)		{			if($item != $itemid)			{				$ti[] = $item;			}		}		$this->items = $ti;		$this->_update_total();	} //end of del_item        function empty_cart()	{ // empties / resets the cart                $this->total = 0;	        $this->itemcount = 0;	        $this->items = array();                $this->itemprices = array();	        $this->itemqtys = array();                $this->itemdescs = array();	} // end of empty cart	function _update_total()	{ // internal function to update the total in the cart	        $this->itemcount = 0;		$this->total = 0;                if(sizeof($this->items > 0))		{                        foreach($this->items as $item) {                                $this->total = $this->total + ($this->itemprices[$item] * $this->itemqtys[$item]);				$this->itemcount++;			}		}	} // end of update_total}?><html here><?phpif($_POST['add']) {	$product = $products[$_POST['id']];	$cart->add_item($product['id'],$product['price'],$product['name']);}if($_POST['remove']) {	$rid = intval($_POST['id']);	$cart->del_item($rid);}		    echo "<table><tr><td>ID</td>";		    echo "<td>Name</td>";		    echo "<td>Price</td>";		    echo "<td>Quan</td>";		    echo "<td>Subtotal</td></tr>";if($cart->itemcount > 0) {	foreach($cart->get_contents() as $item) {  		echo "<tr><td>".$item['id']."</td>";		echo "<td>".$item['info']."</td>";		echo "<td>".number_format($item['price'],2)."</td>";		echo "<td>".$item['qty']."</td>";                echo "<td>".number_format($item['subtotal'],2)."</td>";                echo "<td><form method=post><input type='hidden' name='id' value='".$item['id']."'/><input type='submit' name='remove' value='X'/></form></td></tr>";	}	echo "<tr><td colspan=4>Sub total:</td><td>£".number_format($cart->total,2)."</td></tr>";	echo "<tr><td colspan=4>VAT:</td><td>£".number_format($cart->total,2)."</td></tr>";	echo "<tr><td colspan=4>Total:</td><td>£".number_format($cart->total,2)."</td></tr>";	echo "</table>";	} else {       	       echo "<tr><td colspan=5>- No items found in cart -</td></tr>"; 	       echo "</table>";}?></div></div></body></html>

 

Any help would be much appreciated!

 

Thanks!

Flic Newbie

Flic

Posted
  • Author
Posted

Sorry, didn't realise it had all gone onto one line!

 

<?php
$products = array();
$products[1] = array("id"=>123,"name"=>"Silo Venting Filter","price"=>123.45,"sub"=>"venting_system", "desc"=>"A cylindrically shaped dust collector for venting of pneumatically filled silos, the stainless steel body contains vertically mounted filter elements. The air jet cleaning system is integrated in the hinged weather protection cover.");

foreach($products as $p) {
echo "<div class='acc'>";
echo "<form method='post' action='cart.php'>";
echo "<input type='hidden' name='id' value='".$p['id']."'/>";
echo "<img src='images/".$p['sub'].".jpg' alt='".$p['name']."'>";
echo "<div><h1><a class='silolink' href='accessories/".$p['sub'].".html'>".$p['name']."</a></h1>";
echo $p['desc'];
echo "<br><br>£".$p['price'];
echo "<input type='submit' value='Add to cart' name='add'></form>";
echo "</div></div>";
}
?>

 

<?php
session_start();
$cart =& $_SESSION['cart']; // point $cart to session cart.
if(!is_object($cart)) $cart = new siloCart(); // if $cart ( $_SESSION['cart'] ) isn't an object, make a new cart

class siloCart {
var $total = 0;
var $itemcount = 0;
var $items = array();
        var $itemprices = array();
var $itemqtys = array();
        var $iteminfo = array();

function cart() {} // constructor function

function get_contents()
{ // gets cart contents
	$items = array();
	foreach($this->items as $tmp_item)
	{
	        $item = FALSE;

		$item['id'] = $tmp_item;
                        $item['name'] = $this->itemname[$tmp_item];
		$item['price'] = $this->itemprices[$tmp_item];
		$item['sub'] = $this->itemsub[$tmp_item];
		$item['desc'] = $this->itemdesc[$tmp_item];
		$item['subtotal'] = $item['qty'] * $item['price'];
                        $items[] = $item;
	}
	return $items;
} // end of get_contents


function add_item($itemid,$qty=1,$price = FALSE, $info = FALSE)
{ // adds an item to cart
	if($this->items[$itemid] > 0)
                { // the item is already in the cart..
	  // so we'll just increase the quantity
		$this->itemqtys[$itemid] = $qty + $this->itemqtys[$itemid];
		$this->_update_total();
	} else {
		$this->items[]=$itemid;
		$this->itemqtys[$itemid] = $qty;
		$this->itemprices[$itemid] = $price;
		$this->iteminfo[$itemid] = $info;
	}
	$this->_update_total();
} // end of add_item


function edit_item($itemid,$qty)
{ // changes an items quantity

	if($qty < 1) {
		$this->del_item($itemid);
	} else {
		$this->itemqtys[$itemid] = $qty;
	}
	$this->_update_total();
} // end of edit_item


function del_item($itemid)
{ // removes an item from cart
	$ti = array();
	$this->itemqtys[$itemid] = 0;
	foreach($this->items as $item)
	{
		if($item != $itemid)
		{
			$ti[] = $item;
		}
	}
	$this->items = $ti;
	$this->_update_total();
} //end of del_item


        function empty_cart()
{ // empties / resets the cart
                $this->total = 0;
        $this->itemcount = 0;
        $this->items = array();
                $this->itemprices = array();
        $this->itemqtys = array();
                $this->itemdescs = array();
} // end of empty cart


function _update_total()
{ // internal function to update the total in the cart
        $this->itemcount = 0;
	$this->total = 0;
                if(sizeof($this->items > 0))
	{
                        foreach($this->items as $item) {
                                $this->total = $this->total + ($this->itemprices[$item] * $this->itemqtys[$item]);
			$this->itemcount++;
		}
	}
} // end of update_total

}
?>

<html links>

<?php

if($_POST['add']) {
$product = $products[$_POST['id']];
$cart->add_item($product['id'],$product['price'],$product['name']);
}
if($_POST['remove']) {
$rid = intval($_POST['id']);
$cart->del_item($rid);
}

	    echo "<table><tr><td>ID</td>";
	    echo "<td>Name</td>";
	    echo "<td>Price</td>";
	    echo "<td>Quan</td>";
	    echo "<td>Subtotal</td></tr>";

if($cart->itemcount > 0) {
foreach($cart->get_contents() as $item) {
  		echo "<tr><td>".$item['id']."</td>";
	echo "<td>".$item['info']."</td>";
	echo "<td>".number_format($item['price'],2)."</td>";
	echo "<td>".$item['qty']."</td>";
                echo "<td>".number_format($item['subtotal'],2)."</td>";
                echo "<td><form method=post><input type='hidden' name='id' value='".$item['id']."'/><input type='submit' name='remove' value='X'/></form></td></tr>";
}
echo "<tr><td colspan=4>Sub total:</td><td>£".number_format($cart->total,2)."</td></tr>";
echo "<tr><td colspan=4>VAT:</td><td>£".number_format($cart->total,2)."</td></tr>";
echo "<tr><td colspan=4>Total:</td><td>£".number_format($cart->total,2)."</td></tr>";
echo "</table>";
} else {
       	       echo "<tr><td colspan=5>- No items found in cart -</td></tr>";
	       echo "</table>";
}

?>
</div></div></body>
</html>

 

That looks like its gone on ok this time, sorry about that.

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