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carrito.php
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<?php session_start()?>
<?php
if (!isset($_SESSION['carrito']) ){
$_SESSION['carrito'] = [];
}
$total = 0;
$carrito = [];
foreach ($_SESSION['carrito'] as $prod){
if (!isset ($carrito[$prod['producto']])){
$carrito[$prod['producto']] = [];
$carrito[$prod['producto']]['precio'] = $prod['precio'];
$carrito[$prod['producto']]['cantidad'] = $prod['cnt'];
} else {
$carrito[$prod['producto']]['cantidad'] += $prod['cnt'];
}
}
?>
<!doctype html>
<html lang="es">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<title>MiTienda</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<h5>MiTienda</h5>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="./">Productos</a>
</li>
<li class="nav-item active">
<a class="nav-link" href="./carrito.php">Carrito</a>
</li>
<li class="nav-item ">
<a class="nav-link" href="./cerrar_sesion.php">Cerrar Sesión </a>
</li>
</ul>
</div>
</nav>
<main class="m-5">
<style>
h2{
text-align: center;
}
tr{
display: flex;
justify-content: space-around;
}
td{
width:33.4%;
display: flex;
justify-content: center;
align-items: center;
}
</style>
<h2 >Productos</h2>
<table class="table table-striped">
<thead>
<tr>
<td >Producto</td>
<td >Cantidad</td>
<td >Total</td>
</tr>
</thead>
<tbody>
<?php foreach ($carrito as $key => $val):?>
<?php if($carrito[$key]['cantidad']>0):?>
<tr>
<td>
<?php print_r($key)?>
</td>
<td>
<?php echo ($carrito[$key]['cantidad'])?>
</td>
<td>
<?php echo "$".$carrito[$key]['cantidad']*$carrito[$key]['precio']?>
</td>
<?php $total += $carrito[$key]['cantidad']*$carrito[$key]['precio'] ?>
</tr>
<?php endif?>
<?php endforeach?>
<tr>
<?php echo "<h4>Total: $".$total."</h4>"?>
</tr>
</tbody>
</table>
</main>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
</body>
</html>