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Introduction to PHP10/16
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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”
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Adding PHP directly to the page markup

We created a variable. Now we need to figure out: how do we add its value to the template?

First, add a snippet of PHP code to the template. To do this, we need to use the tags <?php and ?>. When adding PHP to the template, you must use the closing PHP tag. This is how we mark the boundaries of the PHP code.

Then we display the value of the variable on the page in the browser. To do this, you can use the echo command. We indicate the name of the variable in the parentheses after the command name.

As a result, the following code will appear in the template:

<h1><?php echo($title); ?></h1>
// We added PHP code to the template header

But how can we insert the value of the variable in the template? We declared a variable in the main script product.php, and then we included the template components/product_info.php. Due to the fact that we have concatenated the files, the variables from the script are visible in the template. If the value of the variable changes, the value on the page will also change. Here it is, PHP’s superpower!

Add the value of the variable $title to the template and make sure that the product’s name appears.

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Files
    <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"> <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> <li><a href="blog.html">Blog</a></li> </ul> </nav> </header>
    <?php require('components/header.php'); require('components/company_info.php'); require('components/footer.php');
    <?php require('components/header.php'); require('components/products_list.php'); require('components/footer.php'); ?>
    <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>
    <?php require('components/header.php'); $title = 'Leopom chandelier'; require('components/product_info.php'); require('components/footer.php');
    <section class="item"> <div class="container"> <h1 class="item-title">Product name</h1> <img src="img/placeholder.png" width="510" height="392" alt="Placeholder for product photo"> </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. Click on “All files” in the editor. Then open the components folder and go to the product_info.php file.
      2. Inside h1 replace the text Product name with <?php ?>.
      3. Inside the PHP tag write echo($title);.
      4. In the editor, return to product.php and replace the value$title with 'Melmo chair'.

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