How can object-oriented programming concepts be integrated into a web frontend using PHP?

To integrate object-oriented programming concepts into a web frontend using PHP, you can create classes for different components of your frontend, such as a user interface or a form. This allows for better organization, reusability, and easier maintenance of your code.

// Example of creating a class for a user interface component
class UserInterface {
    private $title;

    public function __construct($title) {
        $this->title = $title;
    }

    public function display() {
        echo "<h1>{$this->title}</h1>";
    }
}

// Implementation of the UserInterface class
$userInterface = new UserInterface("Welcome to our website");
$userInterface->display();