Developer: Fix for static function photo_shortcode()

@adamtootle are you going to be updating the

static function photo_shortcode(){
  $imagepath = self::photo_url_shortcode();
        if(!empty( $imagepath)){
            return '<img src="' . self::photo_url_shortcode() . '" />';
        } else {
            return "";
        }
    }

so that it no longer throws errors for older versions of PHP? Something like below. Your current version fatally errors. I work at Purdue and I’d like to continue to use your plugin but cannot if the future version does not fix the issue. Please respond soon. Thanks.

static function photo_shortcode(){
  $imagepath = self::photo_url_shortcode();
        if(!empty( $imagepath)){
            return ‘<img src="' . self::photo_url_shortcode() . '" />';
        } else {
            return "";
        }
    }