Yiisoft/html rendering different output depending on order

Yii 3.0
1

I’ve been playing with yiisoft/html and it seems the order you write the following works/doesn’t work as expected

Does the documentation point out that the order you write these matters? I am using this inside of a WordPress project, sorry I haven’t made a bare minimum example that excludes everything else.

Div::tag()
   ->id('my-id')
   ->class('my-class')
   ->attributes(['tabindex' => '-1'])
   ->content('My content')
   ->render();

Outputs:

<div tabindex="-1">My content</div>

Whereas this

Div::tag()
   ->id('my-id')
   ->attributes(['tabindex' => '-1'])
   ->class('my-class')
   ->content('My content')
   ->render();

Outputs:

<div class="my-class" tabindex="-1">My content</div>

And lastly:

Div::tag()
   ->attributes(['tabindex' => '-1'])
   ->id('my-id')
   ->class('my-class')
   ->content('My content')
   ->render();

Outputs:

<div id="my-id" class="my-class" tabindex="-1">My content</div>

All I have in my composer.json is.

{
    "require": {
        "yiisoft/html": "^3.11"
    }
}
2

I did a minimum example.
composer.json.

{
    "require": {
        "yiisoft/html": "^3.11"
    }
}

index.php

<?php

require_once $_SERVER['DOCUMENT_ROOT'] . '/vendor/autoload.php';

use Yiisoft\Html\Tag\Div;

class MyHelpers {
    public static function MyData() {
        $a = Div::tag()
            ->id('my-id')
            ->class('my-class')
            ->attributes(['tabindex' => '-1'])
            ->content('My content')
            ->render();
        $b = Div::tag()
            ->id('my-id')
            ->attributes(['tabindex' => '-1'])
            ->class('my-class')
            ->content('My content')
            ->render();
        $c = Div::tag()
            ->attributes(['tabindex' => '-1'])
            ->id('my-id')
            ->class('my-class')
            ->content('My content')
            ->render();

        return $a . "\n" . $b . "\n" . $c;
    }
}

echo MyHelpers::MyData();

Outputs the following:

<div tabindex="-1">My content</div>
<div class="my-class" tabindex="-1">My content</div>
<div id="my-id" class="my-class" tabindex="-1">My content</div>
3

The issue was, I was using attributes() and not addAttributes().