sakura/app/BBcodeDefinitions/User.php

<?php
/**
 * Holds the username linking bbcode class.
 *
 * @package Sakura
 */

namespace Sakura\BBcodeDefinitions;

use JBBCode\CodeDefinition;
use JBBCode\ElementNode;
use Sakura\Router;
use Sakura\User as SakuraUser;

/**
 * Username BBcode for JBBCode.
 *
 * @package Sakura
 * @author Julian van de Groep <me@flash.moe>
 */
class User extends CodeDefinition
{
    /**
     * Constructor.
     */
    public function __construct()
    {
        parent::__construct();
        $this->setTagName("user");
        $this->setUseOption(false);
        $this->setParseContent(false);
    }

    /**
     * Compiles the user bbcode to HTML
     *
     * @param ElementNode $el The JBBCode element node.
     *
     * @return string The compiled HTML.
     */
    public function asHtml(ElementNode $el)
    {
        $content = "";

        foreach ($el->getChildren() as $child) {
            $content .= clean_string($child->getAsText(), true);
        }

        $user = SakuraUser::construct($content);
        $profile = Router::route('user.profile', $user->id);

        return "<a class='default username' href='{$profile} style='color: {$user->colour};
         text-shadow: 0 0 .3em {$user->colour}; font-weight: bold;'>{$user->username}</a>";
    }
}