How to create a helper function in Laravel?

In Laravel, a helper function is a PHP function that you can use globally in your application. You can create a helper function by defining it in a separate PHP file and then autoloading it or by defining it in a service provider.

Here is an example of how you can create a helper function in Laravel:

1. Create a new PHP file in the app/Helpers directory (or any other directory of your choice). Let’s call it helpers.php.
2. In the helpers.php file, define your helper function. For example:

<?php

if (! function_exists('hello')) {
    function hello()
    {
        return 'Hello, World!';
    }
}

1. Autoload the helper file by adding the following line to the composer.json file in the root of your Laravel project:

"autoload": {
    "files": [
        "app/Helpers/helpers.php"
    ]
}


1. Run the following command to update the autoloader:

composer dump-autoload

1. You can now use the hello() function anywhere in your application by calling it like this:

echo hello();

Alternatively,

you can define your helper function in a service provider and register it as a singleton. To do this, follow these steps:

1. Create a new service provider by running the following Artisan command:

echo hello();

1. In the app/Providers/HelperServiceProvider.php file, define your helper function in the boot() method. For example:

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;

class HelperServiceProvider extends ServiceProvider
{
    public function boot()
    {
        if (! function_exists('hello')) {
            function hello()
            {
                return 'Hello, World!';
            }
        }
    }
}

1. Register the service provider in the config/app.php file by adding it to the providers array:

'providers' => [
    // Other service providers...

    App\Providers\HelperServiceProvider::class,
],

1. You can now use the hello() function anywhere in your application by calling it like this:

echo hello();