Best Way to update PHP Variable? - php

Question

I am currently having some issues with updating a PHP variable without refreshing the page.
In my situation the code will count the products and if there are none it won't shoot anything out. If the quantity of $total is 1 or greater it will display the amount.
<?php
$total = count_products();
if ($total == 0) {
echo " ";
} else {
echo $total;
}
?>
Now what I am having trouble with is how to update that variable. If I were to add a product, I would not see the updated result until refreshing the page completely. Is there a nice way to update the $total without having to refresh the page?

Answer 1

You can try ajax to do that for you without refreshing page
Basic example here
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-beta1/jquery.min.js"></script>
<script type="text/javascript">
$(document).on("click", ".thebutton", function(e) {
e.preventDefault();
$("#result").load(location.href+ ' #my');
});
</script>
<button href="#" class="thebutton"> add product button</button>
<div id="result">
<div id="my">
<?php
//echo time for demonstration
echo date('a:i:s');
?>
<!-- lets say this is where you echo your total -->
<?php
$total = count_products();
if ($total == 0) {
echo " ";
} else {
echo $total;
}
?>
</div>
</div>
Hope this would be of some help to you