How can the EVA principle in PHP development help improve code organization and maintainability?

The EVA principle in PHP development stands for Encapsulate, Validate, and Assert. By following this principle, developers can improve code organization and maintainability by encapsulating related functionality into classes or functions, validating input data to ensure its correctness, and asserting conditions to catch errors early in the development process. 

class User {
    private $username;

    public function setUsername($username) {
        // Validate input data
        if (!is_string($username)) {
            throw new InvalidArgumentException('Username must be a string');
        }

        // Set username
        $this->username = $username;
    }

    public function getUsername() {
        return $this->username;
    }
}

$user = new User();
$user->setUsername('john_doe');
echo $user->getUsername(); // Output: john_doe

Keywords

EVA principle PHP development code organization maintainability software architecture

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