PHP development: How to implement article reading progress bar and sharing function

PHP development: How to implement article reading progress bar and sharing function

Introduction:
Article reading progress bar and sharing function are to provide users with a better reading experience and important features that make it easy to share content. In PHP development, we can achieve these two functions through some technical means. This article will introduce you to the specific implementation method and give corresponding code examples.

1. Implementation of the article reading progress bar
The key to implementing the article reading progress bar is to obtain the current user's reading progress (that is, the height of the currently scrolled document), and then convert it into a value relative to the entire article percentage. The specific implementation steps are as follows:

1. Introduce the jQuery library into the HTML page:

   <script src="https://cdn.jsdelivr.net/npm/jquery@3.5.1/dist/jquery.min.js"></script>

2. Define the progress bar style in the CSS style file:

   #progress-bar {
     width: 100%;
     height: 5px;
     background-color: #ebebeb;
   }
   
   #progress-fill {
     height: 100%;
     background-color: #00aaff;
   }

3. Implement scrolling event listening and progress bar update in JavaScript script:

   $(document).ready(function() {
     $(window).scroll(function() {
    var docHeight = $(document).height();
    var winHeight = $(window).height();
    var scrollTop = $(window).scrollTop();
    var scrollPercent = (scrollTop / (docHeight - winHeight)) * 100;
   
    $('#progress-fill').css('width', scrollPercent + '%');
     });
   });

4. Insert the progress bar element into the HTML page:

   <div id="progress-bar">
     <div id="progress-fill"></div>
   </div>

Through the above steps, you can implement a simple article reading progress bar.

2. Implementation of the article sharing function
The key to realizing the article sharing function is to share the link and title of the current article to various social platforms through the social media API. The following takes Facebook sharing as an example to give specific implementation methods:

1. Introduce Facebook's JavaScript SDK into the HTML page:

   <div id="fb-root"></div>
   <script async defer crossorigin="anonymous" src="https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v11.0&appId=YOUR_APP_ID&autoLogAppEvents=1" nonce="YOUR_NONCE"></script>

   Among them, YOUR_APP_ID is your Facebook The application ID obtained after creating the application on the developer platform.

2. Insert the share button into the HTML page:

   <div class="fb-share-button" data-href="当前文章链接" data-layout="button_count" data-size="small">
     <a target="_blank" href="https://www.facebook.com/sharer/sharer.php?u=当前文章链接&src=sdkpreparse" class="fb-xfbml-parse-ignore">分享</a>
   </div>

   Note that you need to replace the current article link with the link to the actual article.

Through the above steps, users can click the share button to share the current article to Facebook.

In summary, through the above code examples, we can implement the article reading progress bar and sharing functions. Readers can further improve and customize these two functions according to specific needs to better suit their own websites or applications. Wish everyone good luck with development!

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