Getting error "method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given" when using Livewire and AdminLTE.

[JA-Developer]

What were you trying to do?

I have a personal project that I have been building in a web environment for a long time. The project is using Javascript and Livewire for the "frontend" and PHP 8.4 for the backend. Also, I am using the AdminLTE template with Vite. Recently, I decided to implement Native PHP in my project.

My project have installed the following libraries using composer:

• barryvdh/laravel-dompdf ....................................................................................... DONE
• darryldecode/cart ............................................................................................. DONE
• jeroennoten/laravel-adminlte .................................................................................. DONE
• laravel/fortify ............................................................................................... DONE
• laravel/jetstream ............................................................................................. DONE
• laravel/pail .................................................................................................. DONE
• laravel/sail .................................................................................................. DONE
• laravel/sanctum ............................................................................................... DONE
• laravel/tinker ................................................................................................ DONE
• livewire/livewire ............................................................................................. DONE
• maatwebsite/excel ............................................................................................. DONE
• nativephp/electron ............................................................................................ DONE
• nativephp/laravel ............................................................................................. DONE
• nesbot/carbon ................................................................................................. DONE
• nunomaduro/collision .......................................................................................... DONE
• nunomaduro/termwind ........................................................................................... DONE

What happened?

When I run the command "php artisan native:serve" everything works fine. But, when my webpage is opened I get the following error:

TypeError

"method_exists(): Argument #1 ($object_or_class) must be of type object|string, array given"

MyProject\vendor\nativephp\laravel\src\Events\EventWatcher.php :17

    public function register(): void
    {
        Event::listen('*', function (string $eventName, array $data) {
            $event = $data[0] ?? (object) null;
 
            if (! method_exists($event, 'broadcastOn')) {
                return;
            }
 
            $channels = $event->broadcastOn();
 
            // Only events dispatched on the nativephp channel
            if (! in_array('nativephp', $channels)) {
                return;
            }
 
            // Only post custom events to broadcasting endpoint

How to reproduce the bug

Make a small project with Livewire with AdminLTE where you dispatch an event using Livewire and run the command: "php artisan native:serve"

Package Versions

{
"installed": [
{
"name": "nativephp/electron",
"direct-dependency": true,
"homepage": "https://github.com/nativephp/electron",
"source": "https://github.com/NativePHP/electron/tree/0.9.0",
"version": "0.9.0",
"description": "Electron wrapper for the NativePHP framework.",
"abandoned": false
},
{
"name": "nativephp/laravel",
"direct-dependency": false,
"homepage": "https://github.com/nativephp/laravel",
"source": "https://github.com/NativePHP/laravel/tree/0.7.0",
"version": "0.7.0",
"description": "Laravel wrapper for the NativePHP framework.",
"abandoned": false
},
{
"name": "nativephp/php-bin",
"direct-dependency": false,
"homepage": "https://nativephp.com",
"source": "https://github.com/NativePHP/php-bin/tree/0.5.6",
"version": "0.5.6",
"description": "PHP binaries used by the NativePHP framework",
"abandoned": false
}
]
}

PHP Version

8.4.5

Laravel Version

11.44.2

Node Version

20.12.0

Which operating systems have you seen this occur on?

Windows

OS version

Microsoft Windows 10 Pro, 10.0.19045 N/A Build 19045

Notes

As a WorkAround, i replaced the following line in the file vendor/nativephp/laravel/src/Events/EventWatcher.php:

When I did that, the exception was not thrown anymore.

[simonhamp]

I feel like your fix makes sense and would be a nice PR to solve this.

My only concern - and what I'd like to understand more - is: what is the value of $eventName here when it fails? When would an event name be an array?

[JA-Developer]

I catched the error and logged the values of $eventName and $data. So, the values are the following:

$eventName = "cart.created"
$data = array:2 [▼ // vendor\nativephp\laravel\src\Events\EventWatcher.php:25
  0 => []
  1 => Darryldecode\Cart\Cart {#1876 ▼
    #session: Illuminate\Session\SessionManager {#631 ▼
      #container: Illuminate\Foundation\Application {#4 …44}
      #config: Illuminate\Config\Repository {#47 ▶}
      #customCreators: []
      #drivers: array:1 [▶]
    }
    #events: Illuminate\Events\Dispatcher {#40 …6}
    #instanceName: "cart"
    #sessionKey: "4yTlTDKu3oJOfzD"
    #sessionKeyCartItems: "4yTlTDKu3oJOfzD_cart_items"
    #sessionKeyCartConditions: "4yTlTDKu3oJOfzD_cart_conditions"
    #config: array:6 [▼
      "format_numbers" => false
      "decimals" => 0
      "dec_point" => "."
      "thousands_sep" => ","
      "storage" => null
      "events" => null
    ]
    #currentItemId: null
  }
]

So, the event is being dispatched by the library Darryldecode\Cart\Cart. I guess that the way of the library Darryldecode\Cart\Cart works is dispatching events as arrays. Not sure, though.