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Introduction to PHP tags
Introduction to PHP4/16
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  • 1. Getting started programming in PHP
  • 2. What are commands and comments in PHP
  • 3. Introduction to PHP tags
  • 4. Concatenating files when they are included
  • 5. Assembling the product page
  • 6. Changing the site menu in PHP
  • 7. Changing the site footer in PHP
  • 8. What are variables in PHP
  • 9. Introduction to the debug console
  • 10. Adding PHP directly to the page markup
  • 11. Working with databases
  • 12. Adding images from the database
  • 13. The id variable
  • 14. Introduction to the $_GET command
  • 15. Completing the online store project
  • 16. Summary of “Introduction to PHP”
Assembling the product page
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Concatenating files when they are included

The header component is ready. Add the catalog and footer using require. How can we convert three separate files into a single page?

File concatenation will help us out here. When a require command is encountered during the execution of a script, it is replaced with the contents of the included file in the exact order in which the require commands occur. This is how file concatenation works.

For example, we can open the index.php file in the mini browser and view the main page of the store. We can therefore assemble all of the HTML from the specified scripts in a single place, just like pieces from an erector set. We can include the files within a single script in any order we wish to obtain different page structures.

We will include two more files — components/products_list.php and components/footer.php — in the catalog and make sure that the connected components appear on the page.

Please note that you need to write each require command starting on a new line, with a semicolon ; at the end. This is how we tell PHP that we are finished writing one command and that what comes after is another command.

PHP also has other commands for including files. For example, include. You can learn more about this command in the specification.

Comments

Files
    <?php require('components/header.php'); require('components/company_info.php'); require('components/footer.php');
    <?php require('components/header.php'); ?>
    <section class="intro"> <div class="container"> <h1 class="intro-title">Comfort and coziness in&nbsp;<b>your</b> apartment</h1> <p>A variety of home furnishings with delivery worldwide</p> </div> </section> <section class="popular-products"> <div class="container"> <h2 class="visually-hidden">Top sellers</h2> <ul class="products-list"> <li> <a class="product-card" href="product.php?product_id=1"> <h3>Mseyulida</h3> <p>floor lamp</p> <span class="price"><del>$289</del> $288</span> <img src="img/item-mseyulida.jpg" width="156" height="120" alt="&quot;Mseyulida&quot; floor lamp"> </a> </li> <li> <a class="product-card product-card-new" href="product.php?product_id=2"> <h3>Rmaeribi</h3> <p>three-seat sofa</p> <span class="price">$5870</span> <img src="img/item-rmaeribi.jpg" width="156" height="120" alt=" &quot;Rmaeribi&quot; three-seat sofa"> </a> </li> <li> <a class="product-card" href="product.php?product_id=3"> <h3>Bletub</h3> <p>ceiling chandelier</p> <span class="price">$1360</span> <img src="img/item-bletub.jpg" width="156" height="120" alt="&quot;Bletub&quot; ceiling chandelier"> </a> </li> </ul> </div> </section> <section class="features"> <div class="container"> <h2 class="features-title">What <b>sets</b> us apart from our competitors?</h2> <ul class="features-list"> <li class="feature-unique">Our unique products are&nbsp;unlike anything else on the market</li> <li class="feature-organic">We use only natural materials</li> <li class="feature-protected">Our furniture is resistant to cat teeth and claws</li> </ul> </div> </section>
    <footer class="site-footer"> <div class="container"> <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="catalog"> <div class="container"> <h1 class="catalog-title">Product catalog</h1> <ul class="products-list"> <li> <a class="product-card" href="product.php?product_id=1"> <h3>Mseyulida</h3> <p>floor lamp</p> <span class="price"><del>$289</del> $288</span> <img src="img/item-mseyulida.jpg" width="156" height="120" alt="&quot;Mseyulida&quot; floor lamp"> </a> </li> <li> <a class="product-card product-card-new" href="product.php?product_id=2"> <h3>Rmaeribi</h3> <p>three-seat sofa</p> <span class="price">$5870</span> <img src="img/item-rmaeribi.jpg" width="156" height="120" alt=" &quot;Rmaeribi&quot; three-seat sofa"> </a> </li> <li> <a class="product-card" href="product.php?product_id=3"> <h3>Bletub</h3> <p>ceiling chandelier</p> <span class="price">$1360</span> <img src="img/item-bletub.jpg" width="156" height="120" alt="Bletub ceiling chandelier"> </a> </li> <li> <a class="product-card" href="product.php?product_id=4"> <h3>Nnulm</h3> <p>desk</p> <span class="price">$6832</span> <img src="img/item-nnulm.jpg" width="156" height="120" alt="&quot;Nnulm&quot; computer desk"> </a> </li> <li> <a class="product-card" href="product.php?product_id=5"> <h3>Asusmer</h3> <p>hanging bed</p> <span class="price"><del>$21320</del>$19320</span> <img src="img/item-asusmer.jpg" width="156" height="120" alt="&quot;Asusmer&quot; hanging bed"> </a> </li> <li> <a class="product-card product-card-new" href="product.php?product_id=6"> <h3>Tre</h3> <p>furniture set</p> <span class="price">$32560</span> <img src="img/item-tre.jpg" width="156" height="120" alt="&quot;Tre&quot; furniture set"> </a> </li> </ul> </div> </section>
    .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: 150px; margin-bottom: 20px; padding: 15px 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; } .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 { margin: 15px 0 10px; } .delivery-title, .custom-title, .contacts-title, .catalog-title, .item-title { padding: 0; margin: 0; font-family: "Georgia", "Times", serif; font-size: 28px; line-height: 36px; font-weight: 400; } .custom-columns { display: flex; flex-grow: 0; } .custom-columns img { display: flex; flex-shrink: 0; align-items: center; margin: 20px 20px 30px 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; } .price { margin-top: auto; font-weight: 700; font-size: 15px; color: #ff8a00; } .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, .item img { display: flex; flex-shrink: 0; align-items: center; margin: 20px 0 30px; min-height: 200px; } .contacts-info { margin: -10px 0 30px; } .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 30px; 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; } .features { padding-top: 20px; padding-bottom: 10px; } .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; } /* Additional styles for an alternate homepage */ .intro-alt { min-height: 145px; margin-bottom: 20px; color: #ffffff; background: linear-gradient(#ffad4c 0%, #ea9b3e 80%, #ffad4c 100%); } .intro-alt .container { display: flex; justify-content: space-between; } .intro-text { flex-shrink: 0; padding: 20px 0; } .intro-item { display: flex; flex-direction: column; align-items: center; position: relative; width: 272px; padding-top: 58px; flex-shrink: 0; } .intro-item img { position: absolute; top: 14px; right: 0; } .intro-item p { margin-bottom: 2px; z-index: 2; } .intro-alt .intro-title { margin: 0; padding: 0 0 4px; font-family: "Georgia", "Times", serif; font-size: 32px; line-height: 36px; font-weight: 700; } .intro-description { margin: 0; padding: 0 0 16px; font-size: 15px; font-weight: 700; } .intro-info { margin: 0; line-height: 22px; } .intro-alt code { display: inline-block; vertical-align: baseline; margin: 0 8px; padding: 1px 8px; font-family: inherit; color: #000000; font-weight: 700; letter-spacing: 0.5px; background-color: #ffffff; border-radius: 4px; } .intro-price { z-index: 2; font-size: 15px; font-weight: 700; } .intro-price del { margin-right: 2px; font-weight: 400; font-size: 13px; color: #000000; text-decoration: line-through; } .services-list { display: flex; padding: 0; margin: 14px 0 0; justify-content: space-between; flex-wrap: wrap; list-style: none; } .services-list li { position: relative; width: 156px; margin-bottom: 20px; padding: 122px 0 0; } .services-list li::before { position: absolute; content: ""; top: 0; left: 0; width: 156px; height: 114px; background-repeat: no-repeat; } .service-cleaning::before { background-image: url("img/service-cleaning.jpg"); } .service-placing::before { background-image: url("img/service-placing.jpg"); } .service-decorating::before { background-image: url("img/service-decorating.jpg"); } .products-title { padding-top: 20px; } .product-card-wide { position: relative; display: flex; flex-wrap: wrap; width: 100px; min-height: 81px; margin-bottom: 30px; margin-left: 20px; padding: 15px 25px 15px 120px; background-color: #ffffff; box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); } .product-card-wide p { margin-bottom: 10px; }

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      1. After including components/header.php, include the file components/products_list.php.
      2. On the next line, include components/footer.php.

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