static function replace_avatar($avatar) { // Only replace *.gravatar.com if the option is turned on if (BsaUtil::is_enabled(self::OPTION_NAME) && strpos($avatar, 'gravatar.com') > 0) { $avatar = '<img alt="Avatar" src="' . BsaUtil::get_plugin_url() . '/image/default.png" />'; } return $avatar; }