Is WHITELISTED_IPS a standard

The WHITELISTED_IPS is not a standard environment variable in Laravel or any other framework by default. It's a custom variable that you can define in your .env file to suit your application's needs.

The error you're encountering might be due to a syntax issue in your .env file or the way you're using the variable. Here are a few steps to troubleshoot and implement this correctly:

1. Check the .env File Syntax: Ensure that your .env file is correctly formatted. The WHITELISTED_IPS variable should be defined without spaces around the = sign, like this:

   WHITELISTED_IPS=127.0.0.1,192.168.1.1
   

   Make sure there are no quotes around the IP addresses unless you specifically need them.

2. Clear Configuration Cache: If you have cached your configuration, you need to clear it after making changes to the .env file. Run the following command:

   php artisan config:cache
   

3. Blade Syntax: The Blade syntax you provided seems correct for checking if the user's IP is not in the whitelist. Ensure that the logic aligns with your requirements. Here's the code snippet again for clarity:

   @unless(auth()->check() && !in_array(request()->ip(), explode(',', env('WHITELISTED_IPS', ''))))
       // Your content
   @endunless
   

   This code will display the content unless the user is authenticated and their IP is in the WHITELISTED_IPS.

4. Error Handling: If you continue to receive a 500 error, check your Laravel logs located in storage/logs/laravel.log for more detailed error messages. This can provide insight into what might be going wrong.

By following these steps, you should be able to use the WHITELISTED_IPS variable effectively in your application. If the issue persists, double-check the error logs for more specific information.