Gain insights into modern PHP by delving into POST requests, forms, sessions, and redirects to build a CRUD app with authentication, focusing on pure PHP without frameworks.

Learn PHP Without a Framework by Matthias Noback.png

php-setup.tar.gz

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PHP for the Web is a terrific introduction on how to use modern PHP effectively. While there is a lot of material out there about building applications with PHP, most of them focus on using a framework like Laravel or Symfony. By working with pure PHP, you will be able to focus on the core ideas instead of how a particular framework implements them.

In this course, you will learn how to use multiple web technologies like POST requests, forms, sessions, and redirects to build a CRUD application with an authentication system.

By the end, you will have all the ingredients at your disposal to go out and build stunning, dynamic PHP web applications.

PHP for the Web: Learn PHP without a Framework

# Problem statement

Here is a coding challenge that incorporates all the concepts that we have covered up to this point. 

You are going to create a PHP script that shows "Congratulations!" in a language selected by the user. When you come back to the page, it should still know what language the user selected earlier. We will use a `cookie` for that.

**Tasks:**
- Create a `congratulations.php` script that shows an HTML `<select>` element with two options, English and Dutch.
- Add a `submit` button and make sure to put these elements in an HTML form.
- Make sure the selected language gets submitted as a query parameter called `language`.
- If the query parameter `language` exists, we should copy its value to a cookie called `language`.
- If the query parameter doesn't exist, we should look for a cookie called `language`.
- If the `cookie` doesn't exist, we should fall back to the default language, which is English.
- Below the `form`, show "Congratulations!" in the selected language. When Dutch is selected, show "Gefeliciteerd!".
- Verify that your code is flexible enough by adding one or more additional languages.
- What should happen if you call the page with `?language=invalid`?

Let's create a PHP script to display "Congratulations!" in a language selected by the user.

Getting Started

Serving Resources

Serving PHP Scripts

Forms

Cookies

Sessions

Authentication

PHP Project Structure

CRUD Part 1: Create

CRUD Part 2: The Rest

File Uploads

Error Handling

Automated Testing

Conclusion

Challenge: Showing "Congratulations!"

Problem statement