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PHP Question: Subject: Functions and Arrays. INSTRUCTIONS: Objective: • Write functions. • Use server-side includes. •...

PHP Question:

Subject: Functions and Arrays.

INSTRUCTIONS:

Objective:

• Write functions.
• Use server-side includes.
• Create and utilize a numeric array.
• Create and utilize an associative array.

Requirements:

Create a script file called functions.php, where you will be adding functions.

priceCalc() function:

• 2 parameters: price and quantity.
• Create a numeric array of discounts with the following values: 0,0,.05,.1,.2,.25.
• Get the discount percent from the array using the quantity as the index. If the quantity is greater than 5, use 5 as the index.
• Calculate the discount price using the discount percent.
• Calculate the total by multiplying the discount price by the quantity.
• Return the total to the calling script.

Create a new page called invoice.php:

1.) It would be beneficial to make a copy of the controls.php file and rename it to invoice.php for this section.
2.) Include the functions.php file.
3.) Create an associative array that uses the artist name as the key and the album title as the value. Use any artists and songs that you like and include 10 elements.
4.) Include the header.php file and passing the pageTitle variable to it.
5.) Add a separate entry to the array for "The White Album" by "The Beatles" bringing the total number of albums to 11.
6.) Create a heading variable and assign it the value <h2> Artists and Albums </h2>.
7.) Use a foreach loop to write out every artist and album from the associative array to the web page.

Using the while and for loops from the Controls assignment:

1.) In each loop, replace the price calculation with a call to the priceCalc() function, passing the quantity equal to the loop counter and a price of 12.99 if the download variable is false or 9.99 if it is true. Write out the quantity and total for each iteration.
2.) Add the shipping if download is false.
3.) Include footer.php

Solutions

Expert Solution

There are few points that I want to mention before the solution: Please go through the following points

1. There is no controls.php file provided in the question.
2. For the while and for loops from the Controls assignment section:
   a. There is no limit for iteration mentioned, so I have taken it to be 11, number of albums
   b. And no download variable value is provided and no condition as when it is going to be true . So I have done the program taking it to be false.
   c. No shiping price is given , so I have taken it to be 20 by default.It can be changed according to your requirement which is not mentioned in the question.

functions.php

<html>
   <head>
      <title>Calculate the total price</title>
   </head>
   
   <body>
   
      <?php
         function priceCalc($price, $quantity) {
                        $discounts= array(0.0,0.0,0.05,0.1,0.2,0.25);
                        $index=$qunatity;
                        if(&quantity>5)
                                $index=5;
                        $discountPrice= $price-(($discounts[$index]*$price)/100);
                        $total= $discountPrice* $quantity;
            
            return $total;
         }
      ?>
      
   </body>
</html>

invoice.php

<html>
   <head>
      <title>Albums Collection and their price</title>
   </head>
   
   <body>
   
      <?php include 'functions.php';
                        $pageTitle = 'Get the collections along with their total price';
                        include 'header.php';
                        include 'footer.php';
                 $albums=array("A Girl Called Eddy"=>"Been Around", "Halsey"=>"37", "Manic"=>"43","Little Big Town"=>"Nightfall","Mac Miller"=>"Circles","Mura Masa"=>"R.Y.C.","Of Montreal"=>"Ur Fun","Pinegrove"=>"Marigold","Prince Royce"=>"Alter Ego","Beach Bunny"=>"Honeymoon");
         
                 
                 $albums["The Beatles"]="The White Album";
                 $heading= "<h2> Artists and Albums </h2>";
                 echo $heading;
                 foreach($albums as $x => $x_value) {
                        echo "Artist: " . $x . ", Albums: " . $x_value;
                        echo "<br>";
                }
                $download=false;
                $shipping=20;
                for ($x = 0; $x <= 11; $x++) {
                        if($download== false)
                                $price=12.99;
                        else
                                $price=9.99;
                        $total=priceCalc($price,$x);
                        if($download==false)
                                $total=%total+$shipping;
                        echo "Quantity:" .$x. ", Total Price: " .$total;
                        echo "<br>";
                        
                }
                
      ?>
      
   </body>
</html>

venereology answered 2 years ago
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