PHP Class construct with three optional parameters but one required?
You could use an array to address a specific parameter:
function __construct($param) { $id = null; $email = null; $username = null; if (is_int($param)) { // numerical ID was given $id = $param; } elseif (is_array($param)) { if (isset($param['id'])) { $id = $param['id']; } if (isset($param['email'])) { $email = $param['email']; } if (isset($param['username'])) { $username = $param['username']; } }}And how you can use this:
// IDnew User(12345);// emailnew User(array('email'=>'user@example.com'));// usernamenew User(array('username'=>'John Doe'));// multiplenew User(array('username'=>'John Doe', 'email'=>'user@example.com'));