Knockout-Lite/app/Helper/BBCode.php

<?php

namespace App\Helper;

use App\BbCode\KnockoutDefinitionSet;


class BBCode {

    private $content;

    public function __construct($content)
    {
        $this->content = $content;
    }

    public function render()
    {
        return nl2br(htmlentities($this->content));
    }

}