$user_id = 123; $email = 'newemail@example.com'; // connect to database $conn = new mysqli($servername, $username, $password, $dbname); if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } // prepare SQL statement $sql = "UPDATE users SET email='$email' WHERE id='$user_id'"; // run SQL statement if ($conn->query($sql) === TRUE) { echo "Email updated successfully"; } else { echo "Error updating email: " . $conn->error; } // close database connection $conn->close();
class User { private $email; public function set_email($email) { $this->email = $email; } public function get_email() { return $this->email; } } // create user object $user = new User(); // set email address $user->set_email('john@example.com'); // get email address echo "User email: " . $user->get_email();Package Library: The package library for set_email function depends on the framework or CMS being used. For example, in Laravel, the set_email function can be used in the User model without any additional package library. However, if using a CMS like WordPress, a plugin or custom code may be required to implement set_email functionality.