Using Blade template engine in WordPress plugins.

Blade Test.php

<?php
/**
 * Plugin Name: Blade Test
 */

/*
# composer.json
{
    "name": "naran/experimental",
    "autoload": {
        "psr-4": {
            "Naran\\Experimental\\": "src/"
        }
    },
    "require": {
        "illuminate/container": "^7.23",
        "illuminate/view": "^7.23",
        "illuminate/config": "^7.23"
    },
    "require-dev": {}
}

# src/MyRepository.php

namespace Naran\Experimental;

use Illuminate\Config\Repository;

class MyRepository extends Repository
{
}
*/

if ( ! file_exists(__DIR__ . '/vendor/autoload.php')) {
    return;
}

require_once __DIR__ . '/vendor/autoload.php';

add_action('template_redirect', 'naran_experimental_template');

function naran_experimental_template()
{
    if (is_page('sample-page')) {
        $container = \Illuminate\Container\Container::getInstance();

        $container->bindIf('config', \Naran\Experimental\MyRepository::class, true);
        $container->bindIf('files', \Illuminate\Filesystem\Filesystem::class, true);
        $container->bindIf('events', \Illuminate\Events\Dispatcher::class, true);

        $config = $container->make('config');
        $config->set(
            [
                'view.compiled' => __DIR__ . '/templates-complied',
                'view.paths'    => [
                    get_stylesheet_directory() . '/naran-experimental/templates',
                    get_template_directory() . '/naran-experimental/templates',
                    __DIR__ . '/templates',
                ]
            ]
        );

        (new \Illuminate\View\ViewServiceProvider($container))->register();

        $output = $container->make('view')
                            ->make('greetings', ['user_name' => 'Cristy'])
                            ->render();
        echo $output;

        $output = $container->make('view')
                            ->file(__DIR__ . '/templates/favorites.blade.php', ['item' => 'donut'])
                            ->render();
        echo $output;
        exit;
    }
}