HTML Academy
Declare and call the function
Arrays and functions in PHP3/17
Back to the list of tasks
  • 1. Display all of the products from the order on the page
  • 2. Declare and call the function
  • 3. Function arguments
  • 4. Functions return values
  • 5. Passing the product ID to the function
  • 6. Calculating the shipping cost
  • 7. Optimizing the function
  • 8. Built-in functions
  • 9. The uasort function and sorting products
  • 10. Changing the sorting direction
  • 11. The array_slice function and retrieving part of an array
  • 12. Determining which products are new arrivals
  • 13. The array_filter function and filtering the array
  • 14. Combining the arrays
  • 15. The array_rand function and obtaining random elements
  • 16. The shuffle function and shuffling the array
  • 17. Summary of “Arrays and functions in PHP”
Functions return values
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Function arguments

We declared the function and learned how to call it. However, for the moment our function is not very useful (it simply outputs the same phrase each time in the console). How can we make the function display the total price for each and every product?

Use the function arguments. They allow you to pass different kinds of data to the function and to influence what it outputs.

You specify the arguments in parentheses when declaring a function. You can include as many arguments as you like. If there are several of them, they are separated by commas.

Arguments are similar to variables. They also store values, and their names must begin with a dollar sign. Arguments can only be used in the body of a function.

function my_func($number_1, $number_2) {
  muffin_log($number_1 - $number_2);
}

The function in the example takes two arguments, subtracts the second argument from the first, and outputs the result to the console. But how does it know which numbers to use? To inform of the function of the values, you need to pass the argument values to it.

Argument values are specified in parentheses when the function is called. They are listed in a comma-separated list in the same order as their respective arguments when declaring a function.

my_func(3, 1); // Outputs: "2"
my_func(1, 3); // Outputs: "-2"

We need to calculate the total price of the product. In order to obtain this price, we need to subtract the discount from the full price. Indicate that the get_final_price function should take two arguments: $price and $discount, and output the difference between them to the console. Then call the function after you pass various values to it.

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Files
    <?php require('products_db.php'); $order = [2, 7, 15, 16]; function get_final_price() { muffin_log('Greetings from the function'); } get_final_price(); get_final_price(); require('components/header.php'); require('components/delivery_info.php'); require('components/footer.php');
    <footer class="site-footer"> <div class="container"> <p class="copyright">© Muffin, 2019</p> <ul class="navigation-list"> <li><a href="catalog.php">Catalog</a></li> <li><a href="delivery.php">Delivery</a></li> <li><a href="contacts.html">Contact us</a></li> </ul> <ul class="social-list"> <li> <a class="social-link-twitter" href="https://twitter.com"> <span class="visually-hidden">Twitter</span> </a> </li> <li> <a class="social-link-instagram" href="https://instagram.com"> <span class="visually-hidden">Instagram</span> </a> </li> <li> <a class="social-link-facebook" href="https://facebook.com"> <span class="visually-hidden">Facebook</span> </a> </li> </ul> </div> </footer> </body> </html>
    <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Online store for home furnishings</title> <link href="style.css" rel="stylesheet"> </head> <body> <header class="site-header"> <nav class="site-navigation"> <a class="logo-link" href="index.php"> <img src="img/logo-full.svg" width="62" height="17" alt="Gloevk store logo"> </a> <ul class="navigation-list"> <li><a href="catalog.php">Catalog</a></li> <li><a href="delivery.php">Delivery</a></li> <li><a href="contacts.html">Contact us</a></li> </ul> </nav> </header>
    <section class="order"> <div class="container"> <h1 class="order-title">Delivery order</h1> <table class="order-list"> <tr> <th>Photos</th> <th>Product name</th> <th>Price</th> <th>Delivery price</th> </tr> <?php foreach($order as $id): ?> <tr> <td><img src="<?= get_img_url($id) ?>" width="68" height="52" alt="<?= get_product_title($id) ?>"></td> <td><?= get_product_title($id) ?></td> <td></td> <td class="cost"></td> </tr> <?php endforeach; ?> </table> </div> </section>
    <?php function get_products() { return [ '1' => [ 'title' => 'Asusmer hanging bed', 'img_url' => 'img/item-asusmer.jpg', 'price' => 10000, 'discount' => 1000, 'is_new' => true, 'is_last' => false, 'type' => 'furniture', 'colors' => ['blue'], 'features' => ['Pleases cats', 'Inspires envy', 'Hangs firmly', 'Soft', 'Stylish', 'Yours', 'Doesn’t swing like a baby’s cradle', 'Waits for you at home'] ], '2' => [ 'title' => 'Badeta armchair', 'img_url' => 'img/item-badeta.jpg', 'price' => 3500, 'discount' => 0, 'is_new' => false, 'is_last' => false, 'type' => 'furniture', 'colors' => ['blue', 'black'], 'features' => ['Shakes the apartment', 'Cozy', 'Hangs firmly', 'It’s just as if grandma knitted it'] ], '3' => [ 'title' => 'Blempere stickers', 'img_url' => 'img/item-blempere.jpg', 'price' => 500, 'discount' => 0, 'is_new' => false, 'is_last' => true, 'type' => 'other', 'colors' => ['blue', 'black', 'red'], 'features' => ['Adhere permanently', 'Bright', 'Funny', 'Stylish', 'Do not launder'] ], '4' => [ 'title' => 'Bletub chandelier', 'img_url' => 'img/item-bletub.jpg', 'price' => 4000, 'discount' => 0, 'is_new' => true, 'is_last' => true, 'type' => 'lighting', 'colors' => ['red'], 'features' => ['The cat cannot reach it', 'It hangs firmly in place', 'Shines brightly'] ], '5' => [ 'title' => 'Breirbury organizer', 'img_url' => 'img/item-breirberi.jpg', 'price' => 5000, 'discount' => 3000, 'is_new' => true, 'is_last' => true, 'type' => 'other', 'colors' => ['yellow'], 'features' => ['So that your junk is always an arm’s reach away', 'Convenient', 'You can cook and watch a movie at the same time'] ], '6' => [ 'title' => 'Mseyulida lamp', 'img_url' => 'img/item-mseyulida.jpg', 'price' => 4000, 'discount' => 500, 'is_new' => true, 'is_last' => false, 'type' => 'lighting', 'colors' => ['orange', 'green', 'yellow', 'blue', 'black'], 'features' => ['Suitable for any interior', 'Sturdy'] ], '7' => [ 'title' => 'Rmaeribi sofa', 'img_url' => 'img/item-rmaeribi.jpg', 'price' => 15000, 'discount' => 4500, 'is_new' => true, 'is_last' => true, 'type' => 'furniture', 'colors' => ['green', 'black', 'red', 'blue'], 'features' => ['Soft', 'Cozy', 'Cats and children love it', 'Hides stains', 'Easy to clean'] ], '8' => [ 'title' => 'Nnulm desk', 'img_url' => 'img/item-nnulm.jpg', 'price' => 5000, 'discount' => 0, 'is_new' => true, 'is_last' => false, 'type' => 'furniture', 'colors' => ['green'], 'features' => ['Eco-friendly', 'Lots of drawers', 'It has room for a mug and a pile of papers'] ], '9' => [ 'title' => 'Tre furniture set', 'img_url' => 'img/item-tre.jpg', 'price' => 20000, 'discount' => 3000, 'is_new' => true, 'is_last' => true, 'type' => 'furniture', 'colors' => ['yellow', 'black'], 'features' => ['Relaxes', 'Doesn’t creak', 'Looks cool'] ], '10' => [ 'title' => 'Granny style chandelier', 'img_url' => 'img/item-default-old-lamp.jpg', 'price' => 7000, 'discount' => 2000, 'is_new' => false, 'is_last' => true, 'type' => 'lighting', 'colors' => ['blue', 'black'], 'features' => ['Nostalgic', 'Fits into any interior', 'Your neighbors will envy it', 'Stylish'] ], '11' => [ 'title' => 'Do lamp', 'img_url' => 'img/item-do.jpg', 'price' => 3500, 'discount' => 500, 'is_new' => true, 'is_last' => false, 'type' => 'lighting', 'colors' => ['black'], 'features' => ['Looks beautiful', 'Shines'] ], '12' => [ 'title' => 'Tueta panel', 'img_url' => 'img/item-tueta.jpg', 'price' => 5000, 'discount' => 20, 'is_new' => true, 'is_last' => true, 'type' => 'textile', 'colors' => ['red'], 'features' => ['Will surprise your guests', 'It makes you want to touch it', 'Eye-catching'] ], '13' => [ 'title' => 'Nmiao pillow', 'img_url' => 'img/item-nmyao.jpg', 'price' => 1500, 'discount' => 0, 'is_new' => false, 'is_last' => false, 'type' => 'textile', 'colors' => ['orange'], 'features' => ['Cozy for the cat', 'Comfortable for you', 'Fun for your kid'] ], '14' => [ 'title' => 'Kel lamp', 'img_url' => 'img/item-kel.jpg', 'price' => 3000, 'discount' => 20, 'is_new' => true, 'is_last' => false, 'type' => 'lighting', 'colors' => ['orange', 'blue'], 'features' => ['Helps you read at night', 'Small', 'Exudes a cozy glow', 'Doesn’t bother others'] ], '15' => [ 'title' => 'Omase pillow', 'img_url' => 'img/item-omase.jpg', 'price' => 2000, 'discount' => 100, 'is_new' => true, 'is_last' => true, 'type' => 'textile', 'colors' => ['grey', 'black'], 'features' => ['Brightly colored', 'Square', 'Soft'] ], '16' => [ 'title' => 'Ormu basket', 'img_url' => 'img/item-ormu.jpg', 'price' => 2200, 'discount' => 20, 'is_new' => true, 'is_last' => false, 'type' => 'other', 'colors' => ['blue'], 'features' => ['Everything fits', 'You can plant a flower in it', 'Hides the cat'] ], '17' => [ 'title' => 'Pinas paperclips', 'img_url' => 'img/item-pinas.jpg', 'price' => 100, 'discount' => 0, 'is_new' => true, 'is_last' => true, 'type' => 'other', 'colors' => ['blue', 'black'], 'features' => ['Do not rust', 'Strong', 'You get a bunch of them', 'There is enough to last a long time'] ], '18' => [ 'title' => 'Preum compact cassette', 'img_url' => 'img/item-preum.jpg', 'price' => 200, 'discount' => 20, 'is_new' => true, 'is_last' => false, 'type' => 'other', 'colors' => ['blue', 'black'], 'features' => ['Soothing', 'Surprise your teen', 'You can rewind the tape with a pencil'] ], '19' => [ 'title' => 'Rmob souvenir', 'img_url' => 'img/item-rmob.jpg', 'price' => 1500, 'discount' => 20, 'is_new' => false, 'is_last' => false, 'type' => 'other', 'colors' => ['green', 'orange', 'yellow'], 'features' => ['For the Marvel fan', 'You can plant a flower', 'Glorious', 'Makes you smile'] ], '20' => [ 'title' => 'Tkuoko chandelier', 'img_url' => 'img/item-tkuoko.jpg', 'price' => 2100, 'discount' => 1000, 'is_new' => false, 'is_last' => false, 'type' => 'lighting', 'colors' => ['green', 'orange'], 'features' => ['Glitters', 'Shines', 'Looks expensive', 'Can be hung'] ], '21' => [ 'title' => 'Briatuo armchairs', 'img_url' => 'img/item-briatuo.jpg', 'price' => 7000, 'discount' => 5500, 'is_new' => false, 'is_last' => true, 'type' => 'furniture', 'colors' => ['blue'], 'features' => ['Vivid', 'Deep', 'Beautiful', 'Relaxing', 'Comfortable for your back'] ] ]; } function get_filters() { return [ 0 => [ 'url' => 'all', 'name' => 'All products', ], 1 => [ 'url' => 'lighting', 'name' => 'Lighting', ], 2 => [ 'url' => 'furniture', 'name' => 'Furniture', ], 3 => [ 'url' => 'textile', 'name' => 'Textile', ], 4 => [ 'url' => 'other', 'name' => 'Other', ] ]; } function get_product_attribute($id, $attr) { $products = get_products(); $result = $products[$id][$attr] ?? null; return $result; } function get_product_price($id) { return get_product_attribute($id, 'price'); } function get_product_title($id) { return get_product_attribute($id, 'title'); } function get_img_url($id) { return get_product_attribute($id, 'img_url'); } function get_product_discount($id) { return get_product_attribute($id, 'discount'); } function get_product_is_new($id) { return get_product_attribute($id, 'is_new'); } function get_product_is_last($id) { return get_product_attribute($id, 'is_last'); } function get_product_features($id) { return get_product_attribute($id, 'features'); }
    .visually-hidden:not(:focus):not(:active), input[type="checkbox"].visually-hidden, input[type="radio"].visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; border: 0; padding: 0; white-space: nowrap; clip-path: inset(100%); clip: rect(0 0 0 0); overflow: hidden; } body { min-width: 550px; padding: 0; margin: 0; font-family: "Arial", "Helvetica", sans-serif; font-size: 13px; line-height: 18px; } a { text-decoration: none; color: inherit; } .container { width: 510px; padding: 0 20px; margin: 0 auto; } .site-navigation { display: flex; width: 510px; padding: 0 20px; margin: 0 auto; justify-content: space-between; } .site-header { position: relative; z-index: 2; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); } .logo-link:hover, .logo-link:focus { opacity: 0.5; } .logo-link:active { opacity: 0.3; } .logo-link img { margin: 10px 0; } .navigation-list { display: flex; margin: 0 -15px 0 0; padding: 0; list-style: none; flex-wrap: wrap; justify-content: flex-end; } .navigation-list a:hover, .navigation-list a:focus { opacity: 0.5; } .navigation-list a:active { color: #ff8a00; } .navigation-list a { display: block; padding: 12px 15px 11px; color: #845927; } .intro .container { z-index: -1; min-height: 160px; margin-bottom: 0; padding: 20px 0 0; box-sizing: border-box; background-image: url("img/index-background.jpg"); background-repeat: no-repeat; background-position: top right; } .intro-title { width: 240px; padding: 0; margin: 0; font-family: "Georgia", "Times", serif; font-size: 28px; line-height: 36px; font-weight: 400; } .brands-title b, .intro-title b, .features-title b, .delivery-text b { font-weight: 400; color: #ff8a00; } .intro p { width: 210px; margin: 8px 0 10px; padding: 0; line-height: 20px; } .quote { display: block; position: relative; padding: 0 0 0 33px; margin: 20px 0 20px; font-family: "Georgia", "Times", serif; font-style: italic; } .quote p { padding: 0; margin: 0; font-size: 16px; line-height: 24px; quotes: none; } .quote::before { position: absolute; content: "«"; top: 0; left: 0; font-size: 36px; color: #ff8a00; } .author { display: block; padding: 0; margin: 4px 0; } .popular-products { margin: 0; background-color: #fff3e5; } .delivery, .custom, .contacts, .catalog, .item, .order { padding-top: 15px; padding-bottom: 10px; } .delivery-title, .custom-title, .contacts-title, .catalog-title, .order-title { padding: 0; margin: 5px 0; font-family: "Georgia", "Times", serif; font-size: 28px; line-height: 36px; font-weight: 400; } .filters { display: flex; flex-wrap: wrap; margin: 10px -10px -10px 0; padding: 0; list-style: none; } .filter { display: flex; padding: 8px 16px; margin: 0 10px 10px 0; color: #ff8a00; border: 1px solid #ff8a00; border-radius: 4px; cursor: pointer; } .filter:focus, .filter:hover { color: #ffffff; background-color: #ff8a00; } .filter:active { box-shadow: inset 0 2px 10px #c86c00; } .filter.filter-current { color: #ffffff; background-color: #ff8a00; box-shadow: inset 0 2px 10px #c86c00; cursor: default; } .custom-columns { display: flex; flex-grow: 0; } .custom-columns img { display: flex; flex-shrink: 0; align-items: center; margin: 20px 20px 20px 0; min-height: 200px; } .custom-columns div { margin: 5px 0 20px; } .products-list { display: flex; padding: 20px 0 0; margin: 0 0 0 -20px; flex-wrap: wrap; flex-shrink: 0; list-style: none; } .products-list li { display: flex; } .product-card { position: relative; display: flex; width: 132px; margin-bottom: 20px; margin-left: 20px; padding: 124px 12px 12px; flex-direction: column; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); } .product-card-new { position: relative; } .product-card-new::after { position: absolute; content: "new"; width: 34px; height: 15px; top: 8px; right: -2px; font-weight: 700; line-height: 14px; color: #ffffff; text-align: center; background-color: #ff8a00; border-radius: 4px 0 0 4px; } .product-card:hover, .product-card:focus { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); } .product-card:active { box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1); } .product-card img { position: absolute; top: 0; left: 0; order: -1; } .product-card h3 { margin: 0 0 2px 0; padding: 0; font-family: "Georgia", "Times", serif; font-size: 15px; line-height: 18px; font-weight: 400; } .product-card p { margin: 0 0 8px 0; padding: 0; font-family: "Georgia", "Times", serif; font-style: italic; font-size: 13px; line-height: 16px; } .product-options { display: flex; flex-wrap: wrap; justify-content: space-between; margin-top: auto; } .cost, .price { margin-right: 10px; flex-shrink: 1; font-weight: 700; font-size: 15px; color: #ff8a00; } .colors-list { display: flex; margin: 4px 0 0 -4px; padding: 0; list-style: none; } .colors-list li { box-sizing: border-box; width: 10px; height: 10px; margin-left: 4px; border-radius: 50%; } .color-orange { background-color: orange; } .color-yellow { background-color: yellow; } .color-green { background-color: green; } .color-red { background-color: red; } .color-blue { background-color: blue; } .color-black { background-color: black; } .color-white { background-color: white; border: 1px solid #c0c0c0; } .price del { margin-right: 2px; font-weight: 400; font-size: 13px; color: #000000; text-decoration: line-through; } .map-link { display: block; margin-top: -20px; margin-bottom: 30px; color: #845927; } .map-link:hover, .map-link:focus { opacity: 0.5; } .map-link:active { color: #ff8a00; } .contacts img { display: flex; flex-shrink: 0; align-items: center; margin: 20px 0 30px; min-height: 200px; } .item-title { display: inline-block; vertical-align: baseline; padding-right: 50px; margin: 5px 0 0; font-family: "Georgia", "Times", serif; font-size: 28px; line-height: 36px; font-weight: 400; } .item-new .item-title { position: relative; } .item-new .item-title::after { position: absolute; content: "new"; width: 38px; height: 16px; top: 13px; right: 0; font-family: "Arial", "Helvetica", sans-serif; font-size: 15px; font-weight: 700; line-height: 14px; color: #ffffff; text-align: center; background-color: #ff8a00; border-radius: 4px; } .item-container { display: flex; } .item-img { display: flex; flex-shrink: 0; margin: 20px 0; } .item-hot .item-img { position: relative; padding-top: 36px; } .item-hot .item-img::before { position: absolute; content: ""; width: 290px; height: 36px; top: 0; left: 0; background-color: #fff3e5; background-image: url("img/icon-hot.svg"); background-repeat: no-repeat; background-size: 11px 14px; background-position: 62px 10px; } .item-hot .item-img::after { position: absolute; content: "The product will soon sell out!"; top: 10px; left: 80px; } .item-info { margin: 8px 0 10px 20px; flex-grow: 1; } .title-advantages { margin: 10px 0 8px; font-family: "Georgia", "Times", serif; font-size: 15px; line-height: 22px; font-weight: 400; } .item-advantages { margin: 0; padding-left: 14px; padding-bottom: 12px; border-bottom: 1px solid #e2e2e2; font-family: "Georgia", "Times", serif; font-style: italic; list-style: none; } .item-advantages li { position: relative; margin-bottom: 6px; } .item-advantages li::before { position: absolute; content: ""; width: 6px; height: 6px; top: 6px; left: -14px; background-color: #000000; border-radius: 50%; } .item-buy { display: flex; flex-wrap: wrap; margin: 16px 0 0; } .item-buy .price { display: flex; flex-wrap: wrap; align-items: baseline; position: relative; max-width: 510px; margin-top: -2px; margin-bottom: 10px; flex-shrink: 0; } .item-buy p { margin: 0 30px 10px 0; word-wrap: break-word; } .item-buy i { display: block; margin-bottom: 2px; font-family: "Georgia", "Times", serif; font-style: italic; font-size: 13px; font-weight: 400; color: #000000; } .price-old i { margin-bottom: 3px; } p.price-new { margin-right: 0; font-weight: 700; font-size: 18px; color: #ff8a00; } .button { display: flex; flex-shrink: 0; max-width: 462px; padding: 8px 24px 7px; margin-bottom: 40px; text-align: center; color: #ffffff; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; background-color: #ff8a00; border-radius: 4px; box-shadow: 0 4px 4px rgba(255, 138, 0, 0.4); } .button:hover, .button:focus { background-color: #ff9900; box-shadow: 0 6px 8px rgba(255, 138, 0, 0.4); } .button:active { background-color: #ff8a00; box-shadow: 0 2px 2px rgba(255, 138, 0, 0.6); } .order-list { width: 100%; margin: 10px 0 20px; border-collapse: collapse; text-align: left; } .order-list img { width: 68px; height: 52px; margin-bottom: -5px; } .order-list tr { border-bottom: 1px solid #e2e2e2; } .order-list td { padding: 10px 20px 10px 0; } .order-list th:last-child { width: 140px; } .order-list th { padding: 10px 20px 10px 0; font-family: "Georgia", "Times", serif; font-style: italic; font-weight: 400; vertical-align: bottom; } .order-list td:last-child, .order-list th:last-child { padding-right: 0; } .contacts-info { margin: -10px 0 20px; } .contacts-info p { position: relative; padding-left: 16px; margin: 12px 0; } .contact-phone::before { position: absolute; content: ""; width: 10px; height: 13px; top: 2px; left: 0; background-image: url("img/icon-phone.svg"); } .contact-address::before { position: absolute; content: ""; width: 9px; height: 13px; top: 2px; left: 0; background-image: url("img/icon-pin.svg"); } .delivery-background { display: flex; flex-shrink: 0; align-items: center; margin: 20px 0 20px; min-height: 200px; background-image: url("img/delivery-background.jpg"); background-repeat: no-repeat; background-position: center left; } .delivery-text { width: 210px; margin-left: auto; padding: 16px 20px 20px; background-color: #ffffff; box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1); } .delivery-text p { margin: 8px; padding: 0; } .brands { padding-top: 20px; padding-bottom: 4px; background-color: #f8f8f8; } .brands-list { display: flex; padding: 0; margin: 16px -20px 0 0; flex-wrap: wrap; list-style: none; } .brands-list li { position: relative; width: 112px; margin: 0 20px 16px 0; padding-top: 58px; } .brands-list li::before { position: absolute; content: ""; top: 0; left: 0; width: 112px; height: 50px; background-repeat: no-repeat; } .brands-ehm::before { background-image: url("img/brands-ehm-grey.svg"); } .brands-cubic::before { background-image: url("img/brands-cubic-grey.svg"); } .brands-tehnodom::before { background-image: url("img/brands-tehnodom-grey.svg"); } .brands-dg::before { background-image: url("img/brands-dg-grey.svg"); } .brands-ehm:hover::before { background-image: url("img/brands-ehm.svg"); } .brands-cubic:hover::before { background-image: url("img/brands-cubic.svg"); } .brands-tehnodom:hover::before { background-image: url("img/brands-tehnodom.svg"); } .brands-dg:hover::before { background-image: url("img/brands-dg.svg"); } .features { padding-top: 20px; padding-bottom: 10px; } .brands-title, .features-title, .services-title, .products-title { margin: 0; padding: 0; font-family: "Georgia", "Times", serif; font-size: 20px; line-height: 24px; font-weight: 400; } .features-list { display: flex; padding: 0; margin: 14px 0 0; justify-content: space-between; flex-wrap: wrap; list-style: none; } .features-list li { position: relative; width: 142px; margin-bottom: 10px; } .features-list li::before { position: absolute; content: ""; top: 2px; left: 0; } .feature-unique { padding-left: 22px; } .feature-unique::before { width: 16px; height: 12px; background-image: url("img/feature-unique.svg"); } .feature-organic { padding-left: 25px; } .feature-organic::before { width: 19px; height: 12px; background-image: url("img/feature-organic.svg"); } .feature-protected { padding-left: 16px; } .feature-protected::before { width: 10px; height: 12px; background-image: url("img/feature-protected.svg"); } .site-footer { background-color: #847462; } .site-footer .container { display: flex; flex-grow: 1; justify-content: space-between; } .copyright { margin: auto 0; flex-shrink: 0; color: #ffffff; } .site-footer .navigation-list { margin-right: 15px; margin-left: -15px; justify-content: left; } .copyright + .navigation-list { justify-content: center; margin-left: 15px; } .site-footer a { display: block; margin: 0; padding: 14px 15px; color: #ffffff; } .social-list { display: flex; width: 110px; padding: 0; margin: 0 -10px 2px; justify-content: end; flex-shrink: 0; flex-wrap: wrap; align-items: center; list-style: none; } .social-list a { display: block; width: 14px; height: 14px; padding: 10px; background-repeat: no-repeat; background-position: center; } .social-link-twitter { background-image: url("img/icon-twitter.svg"); } .social-link-instagram { background-image: url("img/icon-instagram.svg"); } .social-link-facebook { background-image: url("img/icon-facebook.svg"); } .social-list a:hover, .social-list a:focus { opacity: 0.5; } .social-list a:active { opacity: 0.3; }

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      Goalscompleted
      1. On line 6, indicate that the get_final_price function takes two arguments: $price and $discount.
      2. In the function body, output the following to the console instead of 'Greetings from the function': $price - $discount.
      3. On line 10, pass the argument values 1000 and 200 to the get_final_price function. Please note that "800" is output to the console.
      4. On the next line, pass the argument values 3000 and 0 to the get_final_price function. Please note that "3000" is now output.

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