Don Alexander Eckford's Query Demo via POST
Note this DEMO passes a variable (and its value) via a POST ternary operation. In other words, the name of the variable and its value is being passed through a POST form.
ID = 0
Note this DEMO passes a variable (and its value) via a POST ternary operation. In other words, the name of the variable and its value is being passed through a POST form.
ID = 0
<?php
// Include the header file (assumed to contain common HTML, CSS, or JS)
include('includes/header.php');
// Enable full error reporting (useful during development, not for production)
error_reporting(E_ALL);
ini_set('display_errors', 1); // Ensure that errors are displayed during development
// Retrieve the 'id' from a POST request using the ternary operator
// If the 'id' is set, it's used; otherwise, it defaults to 0
$id = isset($_POST['id']) ? intval($_POST['id']) : 0; // Improvement: Use intval() for security to sanitize the 'id'
?>
<!-- Display the title of the page -->
<h1>Don Alexander Eckford's Query Demo via POST</h1>
<p>
Note this DEMO passes a variable (and its value) via a POST ternary operation.
In other words, the name of the variable and its value is being passed
through a POST form.
</p>
<!-- Display the current ID value -->
<p>
ID = <?php echo htmlspecialchars($id); ?> <!-- Improvement: Use htmlspecialchars() to prevent XSS attacks -->
</p>
<!-- Create a form that decreases the ID value when submitted -->
<form action="" method="POST"> <!-- The form submits to the same page (action="") -->
<!-- A hidden input field that decreases the value of ID by 1 -->
<input type="hidden" name="id" value="<?php echo($id - 1); ?>">
<input type="submit" name="submit" value="DECREASE"> <!-- The submit button -->
</form>
<br>
<!-- Create another form that increases the ID value when submitted -->
<form action="" method="POST"> <!-- The form submits to the same page (action="") -->
<!-- A hidden input field that increases the value of ID by 1 -->
<input type="hidden" name="id" value="<?php echo($id + 1); ?>">
<input type="submit" name="submit" value="INCREASE"> <!-- The submit button -->
</form>
<?php
// Include the footer file (assumed to contain closing HTML tags or scripts)
include('includes/footer.php');
?>