Note this DEMO passes a variable (and it's value) via a GET ternary operation.
In other words, the name of the variable and it's value is being passed
through the URL. There is no form involved.
Please note the string "?id=-2" in the URL.
This could be used to give users an option to flip through choices. The id in this example refers to a category of furniture for sale.
Category:
N/A
ID = -2
<?php
include('includes/header.php');
// set error reporting to all
error_reporting(E_ALL);
// get the id from the URL via GET ternary operator
$id = isset($_GET['id']) ? $_GET['id'] : 0;
// create items array for shopping demonstration
$items = array("beds","chairs","recliners","dining chairs","sofas","end tables",
"dining tables","coffee tables","dressers","desks","bookshelves","kids furniture");
?>
<h1>Veronica's Query Demo via GET</h1>
<p>
Note this DEMO passes a variable (and it's value) via a GET ternary operation.
In other words, the name of the variable and it's value is being passed
through the URL. There is no form involved.
<br>Please note the string "?id=<?php echo($id); ?>" in the URL.
</p>
<p>
This could be used to give users an option to flip through choices.
The id in this example refers to a category of furniture for sale.
</p>
<p>Category:
<?php
if ($id > -1 && $id < count($items))
{
echo($items[$id]);
} else
{
echo('N/A');
}
echo("<br><br>ID = $id");
?>
</p>
<br>
<a href="query_string_via_get.php?id=<?php echo($id - 1); ?>"> DECREASE Number </a>
<a href="query_string_via_get.php?id=<?php echo($id + 1); ?>"> INCREASE Number </a>
<?php
include('includes/footer.php');
?>