What are the risks of using poorly generated PHP code in terms of scalability and maintainability?

Using poorly generated PHP code can lead to scalability issues due to inefficient code structure and lack of optimization. It can also result in maintainability problems as the code may be difficult to understand, debug, and modify in the future. To address these risks, it is essential to follow best practices in PHP development, such as writing clean and well-organized code, using proper design patterns, and regularly refactoring code to improve performance and readability.

// Example of well-organized PHP code following best practices

class User {
    private $id;
    private $username;
    
    public function __construct($id, $username) {
        $this->id = $id;
        $this->username = $username;
    }
    
    public function getId() {
        return $this->id;
    }
    
    public function getUsername() {
        return $this->username;
    }
}

$user = new User(1, 'john_doe');
echo $user->getUsername();