How can PHP be used to calculate discounts based on user input in a form?

To calculate discounts based on user input in a form using PHP, you can first create a form with input fields for the original price and discount percentage. Then, upon form submission, retrieve the user input using PHP and calculate the discounted price. Finally, display the discounted price to the user. 

<?php
if(isset($_POST['submit'])){
    $original_price = $_POST['original_price'];
    $discount_percentage = $_POST['discount_percentage'];
    
    $discount_amount = $original_price * ($discount_percentage / 100);
    $discounted_price = $original_price - $discount_amount;
    
    echo "Original Price: $" . $original_price . "<br>";
    echo "Discount Percentage: " . $discount_percentage . "%<br>";
    echo "Discounted Price: $" . $discounted_price;
}
?>

<form method="post">
    Original Price: <input type="number" name="original_price" required><br>
    Discount Percentage: <input type="number" name="discount_percentage" required><br>
    <input type="submit" name="submit" value="Calculate Discount">
</form>

Keywords

PHP form input discount calculation user input mathematical operations

Related Questions