How can outsourcing authentication to a separate class improve reusability in PHP applications?

Outsourcing authentication to a separate class can improve reusability in PHP applications by separating the authentication logic from the rest of the application. This allows the authentication functionality to be easily reused in multiple parts of the application or even in different projects. Additionally, it promotes better code organization and maintainability by encapsulating authentication-related code in a single class. 

// Authentication class
class Authentication {
    public function authenticate($username, $password) {
        // Authentication logic here
    }
}

// Implementation in application
$auth = new Authentication();
$auth->authenticate($username, $password);

Keywords

authentication outsourcing separate class reusability PHP applications

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