static function NextStep($step)
    {
        $keys = array_keys(self::Steps());
        $index = array_search($step, $keys);
        if ($index !== false && $index < count($keys) - 1)
        {
           return $keys[$index + 1];
        }
        return null;
    }
static function NextStep($step)
    {
        $keys = array_keys(self::Steps());
        $index = array_search($step, $keys);
        if ($index !== false && $index < count($keys) - 1)
        {
           return $keys[$index + 1];
        }
        return null;
    }
static function NextStep ( $ step ) { $ keys = array_keys ( self :: Steps ( ) ) ; $ index = array_search ( $ step , $ keys ) ; if ( $ index !== false && $ index < count ( $ keys ) - 1 ) { return $ keys [ $ index + 1 ] ; } return null ; }
Gets the next step name
@param string $step The current step key name
@return string Returns the next step name or null if
Gets the next step name