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<?php
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/**
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* Based on http://www.webforcecart.com/ for updates to this script
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*/
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class Cart_Library {
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public $total_price;
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public $items = array();
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public $item_prices = array();
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public $item_quantities = array();
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public $item_info = array();
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public function get_cart_data() {
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$cart_data = array();
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foreach ($this->items as $tmp_item) {
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$item = array();
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$item['id'] = $tmp_item;
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$item['quantity'] = $this->item_quantities[$tmp_item];
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$item['price'] = $this->item_prices[$tmp_item];
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$item['info'] = $this->item_info[$tmp_item];
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$item['subtotal_price'] = $item['quantity'] * $item['price'];
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$cart_data[] = $item;
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}
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return $cart_data;
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}
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public function add_item($id, $quantity, $price, $info) {
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if (array_key_exists($id, $this->item_quantities) && $this->item_quantities[$id] > 0) {
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// If the item is already in the cart, just increase the quantity
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$this->item_quantities[$id] = $quantity + $this->item_quantities[$id];
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$this->_update_total_price();
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} else {
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$this->items[] = $id;
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$this->item_quantities[$id] = $quantity;
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$this->item_prices[$id] = $price;
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$this->item_info[$id] = $info;
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}
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$this->_update_total_price();
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}
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public function edit_item($id, $new_quantity) {
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if ($new_quantity < 1) {
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$this->del_item($id);
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} else {
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$this->item_quantities[$id] = $new_quantity;
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}
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$this->_update_total_price();
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}
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public function remove_item($id) {
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$new_items = array();
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$this->item_quantities[$id] = 0;
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foreach ($this->items as $item_id) {
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if ($item_id != $id) {
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$new_items[] = $item_id;
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}
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}
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$this->items = $new_items;
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$this->_update_total_price();
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}
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public function empty_cart() {
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$this->items = array();
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$this->item_prices = array();
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$this->item_quantities = array();
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$this->item_info = array();
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}
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private function _update_total_price() {
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$this->total_price = 0;
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if (count($this->items) > 0) {
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foreach ($this->items as $item) {
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$this->total_price = $this->total_price + ($this->item_prices[$item] * $this->item_quantities[$item]);
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}
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}
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}
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}
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/* End of file: ./system/libraries/cart/cart_library.php */
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Page URI: http://www.infopotato.com/index.php/code/library/cart/