Synvox · January 28, 2016 00:07
diff --git a/display.php b/display.php
 <?php
        // these will never show because they are never echo'ed in this file.
        $error_message = "";
        if (empty($product_description)){
           $error_message = 'Field cannot be blank.';
        } else if (!is_numeric($list_price)){
            $error_message = 'List price must be a valid number.';
        } else if (!is_numeric($discount_percent)){
            $error_message = 'Discount must be a valid number.';
        } else {
            $error_message = "";
        }
        
        // Display Errors
        if ($error_message !== "") {
            require('input1.php');
            exit;
        }
  ?>
 <!DOCTYPE html>
 <html>
 <head>
    <title>Product Discount Calculator</title>
    <link rel="stylesheet" type="text/css" href="main.css">
 </head>
 <body>
    <main>
        <h1>Product Discount Calculator</h1>

        <label>Product Description:</label>
        <?php $product_description = filter_input(INPUT_POST, 'product_description');?>
        <?php echo htmlspecialchars($product_description);?><br>


        <label>List Price:</label>
        <span><?php $list_price = filter_input(INPUT_POST, 'list_price');?></span>
        <span><?php $list_price_f = "$".  number_format($list_price, 2); ?></span>
        <span><?php echo htmlspecialchars($list_price_f); ?><br></span>

        <label>Standard Discount:</label>
        <span><?php $discount_percent = filter_input(INPUT_POST, 'discount_percent');?></span>
        <span><?php $discount_percent_f = $discount_percent."%";?></span>
        <?php echo htmlspecialchars($discount_percent_f); ?><br>

        <label>Discount Amount:</label>
        <?php $discount_amount = $list_price * $discount_percent * .01; ?>
        <?php $discount_amount_f = "$".  number_format($discount_amount,2);?>
        <span><?php echo $discount_amount_f; ?></span><br>

        <label>Discount Price:</label>
        <?php $discount_price = $list_price - $discount_amount; ?>
        <?php $discount_price_f = "$". number_format($discount_price,2)?>
        <span><?php echo $discount_price_f; ?></span><br>



        <label>Sales Tax:</label>
            <?php $sales_tax = $discount_price * .08; // CHANGE $discount_price_f to $discount_price
              $sales_tax_f = "$".  number_format($sales_tax,2);
              echo $sales_tax_f;
              ?><br>
        <label>Total:</label>
           <?php
                 // CHANGE $discount_price_f to $discount_price
                 // CHANGE $sales_tax_f to $sales_tax

                 // Note, I think you meant + and not *
                 //                      |
                 //                      v
                 $after_tax = $sales_tax + $discount_price;
                 $after_tax_f = "$".  number_format($after_tax,2);
                 echo $after_tax_f;
            ?>

    </main>
 </body>
 </html>
diff --git a/input1.php b/input1.php
 <!DOCTYPE html>
 <html>
 <head>
    <title>Product Discount Calculator</title>
    <link rel="stylesheet" type="text/css" href="main.css">
 </head>

 <body>
    <main>
        <h1>Product Discount Calculator</h1>
        <form action="display_discount.php" method="post">

             <?php 
             $error_message = "";?>
            
            <div id="data">
                <label>Product Description:</label>
                <input type="text" name="product_description"><br>
                    <?php echo $error_message; ?>
                <label>List Price:</label>
                <input type="text" name="list_price"><br>
                    <?php echo $error_message; ?>
                <label>Discount Percent:</label>
                <input type="text" name="discount_percent"><span>%</span><br>
                    <?php echo $error_message; ?>
            </div>

            <div id="buttons">
                <label>&nbsp;</label>
                <input type="submit" value="Calculate Discount"><br>
            
               
            </div>

        </form>
    </main>
 </body>
 </html>
	<?php
	// these will never show because they are never echo'ed in this file.
	$error_message = "";
	if (empty($product_description)){
	$error_message = 'Field cannot be blank.';
	} else if (!is_numeric($list_price)){
	$error_message = 'List price must be a valid number.';
	} else if (!is_numeric($discount_percent)){
	$error_message = 'Discount must be a valid number.';
	} else {
	$error_message = "";
	}

	// Display Errors
	if ($error_message !== "") {
	require('input1.php');
	exit;
	}
	?>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Product Discount Calculator</title>
	<link rel="stylesheet" type="text/css" href="main.css">
	</head>
	<body>
	<main>
	<h1>Product Discount Calculator</h1>

	<label>Product Description:</label>
	<?php $product_description = filter_input(INPUT_POST, 'product_description');?>
	<?php echo htmlspecialchars($product_description);?><br>


	<label>List Price:</label>
	<span><?php $list_price = filter_input(INPUT_POST, 'list_price');?></span>
	<span><?php $list_price_f = "$". number_format($list_price, 2); ?></span>
	<span><?php echo htmlspecialchars($list_price_f); ?><br></span>

	<label>Standard Discount:</label>
	<span><?php $discount_percent = filter_input(INPUT_POST, 'discount_percent');?></span>
	<span><?php $discount_percent_f = $discount_percent."%";?></span>
	<?php echo htmlspecialchars($discount_percent_f); ?><br>

	<label>Discount Amount:</label>
	<?php $discount_amount = $list_price * $discount_percent * .01; ?>
	<?php $discount_amount_f = "$". number_format($discount_amount,2);?>
	<span><?php echo $discount_amount_f; ?></span><br>

	<label>Discount Price:</label>
	<?php $discount_price = $list_price - $discount_amount; ?>
	<?php $discount_price_f = "$". number_format($discount_price,2)?>
	<span><?php echo $discount_price_f; ?></span><br>



	<label>Sales Tax:</label>
	<?php $sales_tax = $discount_price * .08; // CHANGE $discount_price_f to $discount_price
	$sales_tax_f = "$". number_format($sales_tax,2);
	echo $sales_tax_f;
	?><br>
	<label>Total:</label>
	<?php
	// CHANGE $discount_price_f to $discount_price
	// CHANGE $sales_tax_f to $sales_tax

	// Note, I think you meant + and not *
	// \|
	// v
	$after_tax = $sales_tax + $discount_price;
	$after_tax_f = "$". number_format($after_tax,2);
	echo $after_tax_f;
	?>

	</main>
	</body>
	</html>