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Create a PHP Function

Learn to create a simple PHP function within a Symfony controller and modify the existing index method to display dynamic content on a new web page. This lesson guides you through adding and calling a testable function, preparing your application for subsequent PHPUnit tests.

In this lesson, we’ll create a PHP function and make our new web page use it. This function will be used for PHPUnit testing later on in the course.

Add a PHP function

First, let’s create a simple testable PHP function.

  • In the widget below, find the src/Controller/NewPageController.php file.
  • Add the new function.
    public function personalMessage(): string
    {
        return "PHP is cool";
    }

Modify the index() function

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