src/Filter.php
public function setting($key)
    {
        return isset($this->settings[$key]) ? $this->settings[$key] : null;
    }
public function setting($key)
    {
        return isset($this->settings[$key]) ? $this->settings[$key] : null;
    }
public function setting ( $ key ) { return isset ( $ this -> settings [ $ key ] ) ? $ this -> settings [ $ key ] : null ; }
Getter for global settings

@param $key
@return mixed|null
Getter for global settings