com.ceilidhkit/App/TwigExtensions/NavigationExtension.php

<?php

namespace App\TwigExtensions;

use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;

require_once dirname($_SERVER["DOCUMENT_ROOT"]) . "/vendor/autoload.php";

class NavigationExtension extends AbstractExtension
{
    public function getFunctions()
    {
        return [
            new TwigFunction('RenderServiceLinks', [$this, 'RenderServiceLinks']),
            new TwigFunction('RenderBackButton', [$this, 'RenderBackButton']),
        ];
    }

    public function RenderServiceLinks(): string
    {
        $serviceLinkHTML = "";

        return "yrdy";
    }

    public function RenderBackButton(string $title) : string
    {
        $html = '
        <div style="display: flex; align-items: center;">
            <div style="cursor: pointer; display: flex; align-items: center;" onclick="window.history.back();">
                <i class="material-icons">arrow_back</i>
                <span>Back</span>
            </div>
            <h1 style="margin-left: 1em;">{{TITLE}}</h1>
            <div style="display: table; clear: both"></div>
        </div>
        ';
        return str_replace(
            search: "{{TITLE}}",
            replace: $title,
            subject: $html
        );
    }
}