I have a script to increase the amount of each product in the cart via javascript, but I do not know which page to put it in.
<script>
document.getElementById("diminuir").onclick = function(){myFunc1()};
document.getElementById("aumentar").onclick = function(){myFunc2()};
function myFunc1() {
if ($_SESSION['itens'][$idproduto] > 0) {
var newVal = parseFloat($_SESSION['itens'][$idproduto]) - 1;
} else {
newVal = 0;
}
}
function myFunc2() {
var newVal = parseFloat($_SESSION['itens'][$idproduto]) + 1;
}
$_SESSION['itens'][$idproduto]= newVal;
</script>I have a page where the customer chooses the products he wants to add to the cart through this code:
<a class='fa fa-cart-plus' style='font-size:30px' href='cart.php?add=carrinho&id=".$row['id_mol_comp']."'></a> </div>this reference to the cart.php page that contains only php:
<script>
document.getElementById("diminuir").onclick = function(){myFunc1()};
document.getElementById("aumentar").onclick = function(){myFunc2()};
function myFunc1() {
if ($_SESSION['itens'][$idproduto] > 0) {
var newVal = parseFloat($_SESSION['itens'][$idproduto]) - 1;
} else {
newVal = 0;
}
}
function myFunc2() {
var newVal = parseFloat($_SESSION['itens'][$idproduto]) + 1;
}
$_SESSION['itens'][$idproduto]= newVal;
</script>
<?php
session_start();
if (!isset($_SESSION['itens'])){
$_SESSION['itens']=array();
}
if(isset($_GET['add'])&& $_GET['add']=="carrinho") {
$idproduto = $_GET['id'];
if(!isset($_SESSION['itens'][$idproduto])){
$_SESSION['itens'][$idproduto]=1;
}else{
$_SESSION['itens'][$idproduto]+=1;
}
}
header('location: carrinho.php');
?> Finally, there is a final page cart.php to print the cart with the prudutos.
My question is which of the pages to put the script to make the buttons increase and decrease the amount