--- title: Learn Computing from the Experts | The Rheinwerk Computing Blog | Web Development description: Web Development | Dive into programming, web development, and more with Rheinwerk Computing Blog! Your go-to resource for expanding your computing knowledge. --- [![Rheinwerk Computing Logo](https://blog.rheinwerk-computing.com/hubfs/computing_logo-header.svg)](https://blog.rheinwerk-computing.com/) [Blog](https://blog.rheinwerk-computing.com) - Books - Get an overview of our wide selection of books on every relevant computing topic. - [General Computing](https://www.sap-press.com/rheinwerk-computing/general-computing/) - [DevOps](https://www.sap-press.com/rheinwerk-computing/devops/) - [Programming Languages](https://www.sap-press.com/rheinwerk-computing/programming-languages/) - [Security](https://www.sap-press.com/rheinwerk-computing/security/) - [Software Development](https://www.sap-press.com/rheinwerk-computing/software-development/) - Book Subscription - Get unlimited access to all Rheinwerk Computing books! - [Programming Subscription](https://sap-press.com/subscriptions/) # Web Development [![How to Embed GA4 Tags on a Website](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Embed%20GA4%20Tags%20on%20a%20Website.jpg?height=600&name=How%20to%20Embed%20GA4%20Tags%20on%20a%20Website.jpg)](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) ## [How to Embed GA4 Tags on a Website](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) When setting up Google Analytics 4 on your website, there are a number of steps to complete. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-embed-ga4-tags-on-a-website) [![What Are Custom Definitions in Google Analytics 4 (GA4)?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Are%20Custom%20Definitions%20in%20Google%20Analytics%204%20(GA4)_.jpg?height=600&name=What%20Are%20Custom%20Definitions%20in%20Google%20Analytics%204%20(GA4)_.jpg)](https://blog.rheinwerk-computing.com/what-are-custom-definitions-in-google-analytics-4) ## [What Are Custom Definitions in Google Analytics 4 (GA4)?](https://blog.rheinwerk-computing.com/what-are-custom-definitions-in-google-analytics-4) Many events in Google Analytics 4 (GA4) have fixed parameters that can be filled in automatically when they are called. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-are-custom-definitions-in-google-analytics-4) [![Understanding the Match Expression in PHP 8](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Understanding%20the%20Match%20Expression%20in%20PHP%208.jpg?height=600&name=Understanding%20the%20Match%20Expression%20in%20PHP%208.jpg)](https://blog.rheinwerk-computing.com/match-expression-in-php) ## [Understanding the Match Expression in PHP 8](https://blog.rheinwerk-computing.com/match-expression-in-php) With the match case distinction, PHP 8 actually brings a comparatively large innovation to basic programming functions. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/match-expression-in-php) [![How to Add a Form to a Website with PHP](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Add%20a%20Form%20to%20a%20Website%20with%20PHP.jpg?height=600&name=How%20to%20Add%20a%20Form%20to%20a%20Website%20with%20PHP.jpg)](https://blog.rheinwerk-computing.com/how-to-add-a-form-to-a-website-with-php) ## [How to Add a Form to a Website with PHP](https://blog.rheinwerk-computing.com/how-to-add-a-form-to-a-website-with-php) Dynamic websites never work without a form. In this post, we’ll teach you how to add one with PHP. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-add-a-form-to-a-website-with-php) [![How to Set Up Single-Page Web Applications with React](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Set%20Up%20Single-Page%20Web%20Applications%20with%20React.png?height=600&name=How%20to%20Set%20Up%20Single-Page%20Web%20Applications%20with%20React.png)](https://blog.rheinwerk-computing.com/how-to-set-up-single-page-web-applications-with-react) ## [How to Set Up Single-Page Web Applications with React](https://blog.rheinwerk-computing.com/how-to-set-up-single-page-web-applications-with-react) A React application usually consists of a large number of small files that have interdependencies that you can resolve via the JavaScript module... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-set-up-single-page-web-applications-with-react) [![How to Install the PHP Extension Library PEAR](https://blog.rheinwerk-computing.com/hs-fs/hubfs/How%20to%20Install%20the%20PHP%20Extension%20Library%20PEAR.jpg?height=600&name=How%20to%20Install%20the%20PHP%20Extension%20Library%20PEAR.jpg)](https://blog.rheinwerk-computing.com/how-to-install-the-php-extension-library-pear) ## [How to Install the PHP Extension Library PEAR](https://blog.rheinwerk-computing.com/how-to-install-the-php-extension-library-pear) PEAR is the PHP extension library. PEAR contains all the extensions that are written in PHP. ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/how-to-install-the-php-extension-library-pear) [![Testing Your React Components with Jest: A Quick Guide](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Testing%20Your%20React%20Components%20with%20Jest_%20A%20Quick%20Guide.jpg?height=600&name=Testing%20Your%20React%20Components%20with%20Jest_%20A%20Quick%20Guide.jpg)](https://blog.rheinwerk-computing.com/testing-your-react-components-with-jest-a-quick-guide) ## [Testing Your React Components with Jest: A Quick Guide](https://blog.rheinwerk-computing.com/testing-your-react-components-with-jest-a-quick-guide) When testing a component, you basically proceed in the same way as for an ordinary unit test: you prepare the environment, you perform an operation,... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/testing-your-react-components-with-jest-a-quick-guide) [![What Is a Click Dummy in Web Design?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20a%20Click%20Dummy%20in%20Web%20Design.png?height=600&name=What%20Is%20a%20Click%20Dummy%20in%20Web%20Design.png)](https://blog.rheinwerk-computing.com/what-is-a-click-dummy-in-web-design) ## [What Is a Click Dummy in Web Design?](https://blog.rheinwerk-computing.com/what-is-a-click-dummy-in-web-design) When you present a screen flow for evaluation by a group of users, most people will have a tough time imagining how using the tool will feel to them... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-a-click-dummy-in-web-design) [![What Is a Rapid User Test in Software Development?](https://blog.rheinwerk-computing.com/hs-fs/hubfs/What%20Is%20a%20Rapid%20User%20Test%20in%20Software%20Development.jpg?height=600&name=What%20Is%20a%20Rapid%20User%20Test%20in%20Software%20Development.jpg)](https://blog.rheinwerk-computing.com/what-is-a-rapid-user-test-in-software-development) ## [What Is a Rapid User Test in Software Development?](https://blog.rheinwerk-computing.com/what-is-a-rapid-user-test-in-software-development) Curious how to get user feedback faster than ever? Discover the ins and outs of rapid user testing—an efficient, cost-effective way to refine your... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/what-is-a-rapid-user-test-in-software-development) [![Understanding HTML Character Encoding: Why UTF-8 Matters](https://blog.rheinwerk-computing.com/hs-fs/hubfs/Understanding%20HTML%20Character%20Encoding_%20Why%20UTF-8%20Matters.jpg?height=600&name=Understanding%20HTML%20Character%20Encoding_%20Why%20UTF-8%20Matters.jpg)](https://blog.rheinwerk-computing.com/understanding-html-character-encoding-why-utf-8-matters) ## [Understanding HTML Character Encoding: Why UTF-8 Matters](https://blog.rheinwerk-computing.com/understanding-html-character-encoding-why-utf-8-matters) Ensure your HTML documents display special characters correctly by understanding character encoding and why UTF-8 is the preferred standard for... ![Rheinwerk Computing](https://blog.rheinwerk-computing.com/hubfs/RW-logo-300x300.png) by [Rheinwerk Computing](https://blog.rheinwerk-computing.com/author/rheinwerk-computing) [Read More](https://blog.rheinwerk-computing.com/understanding-html-character-encoding-why-utf-8-matters) - [1](https://blog.rheinwerk-computing.com/tag/web-development/page/1) - [2](https://blog.rheinwerk-computing.com/tag/web-development/page/2) - [3](https://blog.rheinwerk-computing.com/tag/web-development/page/3) - [4](https://blog.rheinwerk-computing.com/tag/web-development/page/4) - ### Blog Topics - [All Topics](https://blog.rheinwerk-computing.com) - [Programming Languages](https://blog.rheinwerk-computing.com/tag/programming-languages) - [How To](https://blog.rheinwerk-computing.com/tag/how-to) - [DevOps](https://blog.rheinwerk-computing.com/tag/devops) - [Featured](https://blog.rheinwerk-computing.com/tag/featured) - [JavaScript](https://blog.rheinwerk-computing.com/tag/javascript) - [Cybersecurity](https://blog.rheinwerk-computing.com/tag/cybersecurity) - [What Is?](https://blog.rheinwerk-computing.com/tag/what-is) - [Artificial Intelligence](https://blog.rheinwerk-computing.com/tag/artificial-intelligence) - [Web Development](https://blog.rheinwerk-computing.com/tag/web-development) - [Software Development](https://blog.rheinwerk-computing.com/tag/software-development) **Subscribe to our blog!**Get notified about future blog updates. - - - ### Most Popular Blog Posts 1. 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