Hello, I ask another question because I have other doubts, I do not know if it's okay.
Well, I propose what I have to do first. An object-oriented shopping cart (POO) that has basic operations such as adding product to cart to the aldo of each one, printing the objects added to a cart, see cart etc. I re-issued a code and it's almost over (I think) just that I miss some mistakes that I do not know how to solve when I want to add a cart and see the cart
codigo: int, clave primaria
producto: varchar(30)
descripción: varchar(255)
precio: decimal (5,2)
Warning: Missing argument 2 for Product :: enter_product (), called in C: \ xampp \ htdocs \ shopping.php on line 16 and defined in C: \ xampp \ htdocs \ classes \ Product.php on line 62
Warning: Missing argument 3 for Product :: enter_product (), called in C: \ xampp \ htdocs \ shopping.php on line 16 and defined in C: \ xampp \ htdocs \ classes \ Product.php on line 62
Notice: Undefined variable: product in C: \ xampp \ htdocs \ classes \ Product.php on line 64
Notice: Undefined variable: price in C: \ xampp \ htdocs \ classes \ Product.php on line 65 Y Notice: Undefined variable: Product in C: \ xampp \ htdocs \ ver_carrito.php on line 25
Fatal error: Call to a member function imprime_carrito () on null in C: \ xampp \ htdocs \ ver_carrito.php on line 25
here are my codes so I do not do so long the post
home
<?php
session_start();
if (!isset($_SESSION['usuario'])){
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Carrito de Compras</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<link rel="stylesheet" type="text/css" href="bootstrap/css/bootstrap.min.css">
<link href="http://fonts.googleapis.com/css?family=Asap:400,700" rel="stylesheet" type="text/css">
</head>
<body>
<div id="wrap"> <div id="main">
<div class="container">
<nav class="navbar navbar-inverse" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#acolapsar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a href="./" class="navbar-brand">ABM Productos</a>
</div>
</div>
</nav>
<?php
require 'autoload.php';
$base = new BasedeDatosmysqli(SERVIDOR,USUARIO,PASSWORD,BASE);
$producto = new Producto($base);
$productoOK = $producto->getProductos();
if ($productoOK){
echo '<table class="table table-striped">
<tr class="active">
<td>Código</td>
<td>Producto</td>
<td>Descripcion</td>
<td>Precio</td>
<td colspan="2">Operaciones</td>
</tr>';
for ($i=0;$i<count($productoOK);$i++){
echo '<tr>
<td>'.$productoOK[$i]['codigo'].'</td>
<td>'.$productoOK[$i]['producto'].'</td>
<td>'.$productoOK[$i]['descripcion'].'</td>
<td>'.$productoOK[$i]['precio'].'</td>
<td><a href="carrito.php?codigo='.$productoOK[$i]['codigo'].'><button type="button" class="btn btn-info">Añadir a carrito</button></a></td>
</tr>';
}
echo '</table>';
}
else{
echo 'Aún no hay datos ingresados';
}
?>
</div>
</div>
<div id="push"></div>
</div>
<footer><div class="container">Este es el pie de página</div></footer>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>
</body>
</html>
producto.php
<?php
class Producto {
public $db;
public function __construct($base){
$this->db = $base;
}
public function __destruct() {
$this->db = null;
}
public function getProductos(){
//echo $this->db->error;
$respuesta = $this->db->enviarQuery("select * from productos");
if (!$respuesta and $this->db->error!=''){
echo $this->db->error;
return false;
}
else{
if (!$respuesta){
return false;
}
else {
return $respuesta;
}
}
}
public function getProducto($codigo){
//echo $this->db->error;
$respuesta = $this->db->enviarQuery("select * from productos where codigo = $codigo");
if (!$respuesta and $this->db->error!=''){
echo $this->db->error;
return false;
}
else{
if (!$respuesta){
return false;
}
else {
return $respuesta;
}
}
}
function carrito () {
$this->cantidad=0;
}
function introduce_producto($codigo,$producto,$precio){
$this->codigo[$this->cantidad]=$codigo;
$this->producto[$this->cantidad]=$producto;
$this->precio[$this->cantidad]=$precio;
$this->cantidad++;
}
function imprime_carrito(){
$suma = 0;
echo '<table border=1 cellpadding="3">
<tr>
<td><b>Nombre producto</b></td>
<td><b>Precio</b></td>
<td> </td>
</tr>';
for ($i=0;$i<$this->cantidad;$i++){
if($this->codigo[$i]!=0){
echo '<tr>';
echo "<td>" . $this->nombre[$i] . "</td>";
echo "<td>" . $this->precio[$i] . "</td>";
echo "<td><a href='eliminar_producto.php?linea=$i'>Eliminar producto</td>";
echo '</tr>';
$suma += $this->precio[$i];
}
}
//muestro el total
echo "<tr><td><b>TOTAL:</b></td><td> <b>$suma</b></td><td> </td></tr>";
//total más IVA
echo "<tr><td><b>IVA (16%):</b></td><td> <b>" . $suma * 1.16 . "</b></td><td> </td></tr>";
echo "</table>";
}
function elimina_producto($linea){
$this->codigo[$linea]=0;
}
}
?>
cart.php
<?php
session_start();
if (!isset($_SESSION['usuario'])){
}
require 'autoload.php';
$base = new BasedeDatosmysqli(SERVIDOR,USUARIO,PASSWORD,BASE);
$producto = new Producto($base);
$producto->introduce_producto('precio' . 'producto' . 'codigo');
?>
<html>
<head>
<title>Introduce Producto</title>
</head>
<body>
Producto introducido.
<br>
<br>
<a href="index.php">- Volver</a>
<br>
<br>
<a href="ver_carrito.php">- Ver carrito</a>
</body>
</html>
ver_carrito.php
<?php
session_start();
if (!isset($_SESSION['usuario'])){
}
require 'autoload.php';
$base = new BasedeDatosmysqli(SERVIDOR,USUARIO,PASSWORD,BASE);
$producto = new Producto($base);
$Producto->imprime_carrito($_GET['codigo']);
?>
<html>
<head>
<title>Introduce Producto</title>
</head>
<body>
<br>
<br>
<a href="index.php">Volver</a>
</body>
</html>