private function sort()
    {
        // sort by reverse key length
        uksort($this->tokens, function ($first, $second) {
            return strlen($second) - strlen($first);
        });
    }
private function sort()
    {
        // sort by reverse key length
        uksort($this->tokens, function ($first, $second) {
            return strlen($second) - strlen($first);
        });
    }
private function sort ( ) { // sort by reverse key length uksort ( $ this -> tokens , function ( $ first , $ second ) { return strlen ( $ second ) - strlen ( $ first ) ; } ) ; }
Sort the tokens into reverse key length order
Sort the tokens into reverse key length order