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Arrays and loops in PHP7/16
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  • 1. Outputting several elements to PHP
  • 2. What are arrays?
  • 3. Indexes of the array elements
  • 4. Adding an element to the array by index
  • 5. The while loop in PHP
  • 6. Embedding the while loop in the template
  • 7. Counting the number of elements in the array using the count command
  • 8. Adding count to the template
  • 9. Outputting elements from the array by id
  • 10. The associative array in PHP
  • 11. The foreach loop in PHP
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  • 16. Summary of “Arrays and loops in PHP: Part 1”
Adding count to the template
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Counting the number of elements in the array using the count command

The marketers unexpectedly decided to increase the number of product features, and they sent a list of elements that need to be added to the array.

At the previous step, we ourselves calculated the number of elements in the array, and we wrote this number in the $index < 6 condition. After the new features were added, the number of elements changed. But do we really have to independently recalculate the number of elements and edit the condition every time the array is changed?

To automatically count the number of elements in an array, which is called the array length, we can use the count command.

Take an array of numbers:

$numbers = [1, 2, 3, 4, 5];

Let’s calculate the length of this array. To do this, you need to write a set of parentheses after the word count, and inside the parentheses indicate the name of the array. Let’s save the obtained value to a variable so that we can continue to use it in the future.

$numbers_quantity = count($numbers);
muffin_log($numbers_quantity); // Outputs: 5

The $numbers_quantity variable will be equal to 5. In other words, the $numbers array will contain only five elements.

You need to keep in mind that the count command counts the number of elements and not their indexes. The index of final element in the $numbers array is equal to 4, not 5.

Let’s check how this command functions in practice: count the number of elements in $features and output the result to the console. And then let’s please the marketers by adding the list of product features to the array. Check that the array length changes.

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Files
    <?php require('products_db.php'); require('components/header.php'); $id = $_GET['product_id']; $title = get_product_title($id); $img_url = get_img_url($id); $price = get_product_price($id); $discount = get_product_discount($id); $is_new = get_product_is_new($id); $is_last = get_product_is_last($id); $product_class = 'item'; // Add elements to the array below $features = ['Pleases cats', 'Inspires envy', 'Hangs firmly', 'Soft', 'Stylish', 'Yours']; // Declare a variable $features_quantity here if ($discount > 0) { $price_with_discount = $price - $discount; } if ($discount > 1400 || $is_last) { $product_class = $product_class . ' item-hot'; }; if ($is_new) { $product_class = $product_class . ' item-new'; } require('components/product_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.html">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.html">Delivery</a></li> <li><a href="contacts.html">Contact us</a></li> </ul> </nav> </header>
    <section class="<?= $product_class ?>"> <div class="container"> <h1 class="item-title"><?= $title ?></h1> <div class="item-container"> <div class="item-img"> <img src="<?= $img_url ?>" width="290" height="222" alt="<?= $title ?>"> </div> <div class="item-info"> <h2 class="title-advantages">Product advantages:</h2> <ul class="item-advantages"> <?php $index = 0; ?> <?php while ($index < 6): ?> <li><?= $features[$index] ?></li> <?php $index = $index + 1 ?> <?php endwhile;?> </ul> <div class="item-buy"> <p class="price-old"><i>Price </i>$<?= $price ?></p> <?php if ($discount > 0): ?> <p class="price-new"><i>New price </i>$<?= $price_with_discount ?></p> <?php endif; ?> </div> </div> </div> </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; } .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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      1. Declare a variable $features_quantity with the value count($features) on line 17 of the product.php file.
      2. Output the variable $features_quantity to the console using the string below. Open the console and see what is displayed in it.
      3. On line 15 manually add the following new elements to the end of the array: , 'Doesn't swing like a baby's cradle', 'Waits for you at home'. See what is output to the console.

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