I like to run my code just once. But somehow it runs twice, which causes some further problems.

---

The Problem

The method setCurrentItem on Page runs twice.

The value true is dumped two times by var_dump(true).

I would like to implement a conditional redirect which does not work because the code is run more than once.

I would also like to get some general coding advice on my code, because I am relatively new to PHP.

Thanks, everyone!

---

Now: The Code

index.php:

<?php

require_once '../src/App.php';
require_once '../src/Page.php';
require_once '../src/Item.php';

$app = new App();

App.php:

<?php

class App
{
    public $pages = [];
    public $currentPage = null;

    public function __construct()
    {
        $this->loadPages();
        $this->setCurrentPage();
    }

    private function loadPages()
    {
        $paths = glob('../content/**/page.json');

        foreach ($paths as $path) {
            $data = json_decode(file_get_contents($path));
            $this->pages[$data->slug] = new Page($data);
        }
    }

    private function setCurrentPage()
    {
        $pathSegments = isset($_GET['path']) ? explode('/', trim($_GET['path'], '/')) : [];
        $slug = isset($pathSegments[0]) ? $pathSegments[0] : 'home';

        if (array_key_exists($slug, $this->pages)) {
            $this->currentPage = $this->pages[$slug];
        } else {
            $siteConfig = json_decode(file_get_contents('../config/site.json'));
            header('Location: '.$siteConfig->basePath);
        }
    }
}

Page.php:

<?php

class Page
{
    public $slug;
    public $title;
    public $dynamic;

    public $items = [];
    public $currentItem = null;

    public function __construct($data)
    {
        $this->distributeData($data);

        if ($this->dynamic) {
            $this->loadItems();
            $this->setCurrentItem();
        }
    }

    private function distributeData($data)
    {
        $this->slug = $data->slug;
        $this->title = $data->title;
        $this->dynamic = $data->dynamic;
    }

    private function loadItems()
    {
        $paths = glob('../content/*.'.$this->slug.'/**/item.json');
        
        foreach ($paths as $path) {
            $data = json_decode(file_get_contents($path));
            $this->items[$data->slug] = new Item($data);
        }
    }

    private function setCurrentItem()
    {
        $pathSegments = isset($_GET['path']) ? explode('/', trim($_GET['path'], '/')) : [];
        $slug = isset($pathSegments[1]) ? $pathSegments[1] : null;

        if (array_key_exists($slug, $this->items)) {
            $this->currentItem = $this->items[$slug];
        }

        var_dump(true);
    }
}