The PHP insteadof keyword allows you to select from which trait a method should be taken if more than one trait has a method with the same name.

<?php
trait message_1 {
    public function msg_a() {
        echo 'My favorite color is blue. ';
    }

    public function msg_b() {
        echo 'My favorite number is 8. ';
    }
}

trait message_2 {
    public function msg_a() {
        echo 'My favorite color is green. ';
    }

    public function msg_b() {
        echo 'My favorite number is 2. ';
    }
}

class my_class {
    use message_1, message_2 {
        message_1::msg_a insteadof message_2;
        message_2::msg_b insteadof message_1;
    }
}

$obj = new my_class();
$obj->msg_a();
$obj->msg_b();
?>