Custom helper not working in laravel, it return undefined function in controller-CodePudding

I am looking to write a global function in laravel using the helper.

Here is my code helpers.php

namespace App\Helpers;

use Illuminate\Http\Request;
use App\Models\User;
use Session;




function showTest(){
    return "test";
}

Composer.json

"autoload": {
        "psr-4": {
            "App\\": "app/",
            "Database\\Factories\\": "database/factories/",
            "Database\\Seeders\\": "database/seeders/"
        },

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

But when i call the function in the controller it returns error;

dd(showTest());

it returns this error;

Call to undefined function App\Http\Controllers\User\showTest()

What could be the problem?

Also I have ran composer dump-autoload

Modified

I have tried all solutions posted here but it’s not working.

Php 8 Laravel 9

CodePudding user response：

You need to run composer dump-autoload and it will work.

For more details click here

CodePudding user response：

Another way of doing this is to register your Helper files in Laravel's service container.

You could either do this in an existing service provider file, or create a new one, for example HelperServiceProvider.php (can be done with php artisan make:provider)

In the register method of the service provider, you can take your helper file and require them globally, as such

public function register()
{
    require_once(glob(app_path().'/Helpers/helpers.php');
}

If you have multiple files, you can simply put them in a for each

public function register()
{
    foreach (glob(app_path().'/Helpers/*.php') as $filename){
        require_once($filename);
    }
}

CodePudding user response：

First I want to apologize for all the troubles.

The problem was that I used namespace in my helpers.php file

This thread saved me

https://stackoverflow.com/a/29736097/14940381

CodePudding user response：

Try loading them inside AppServiceProvider boot method instead of composer file.

require_once app_path('Helpers/helpers.php');

CodePudding user response：

composer.json

"autoload": {
   "psr-4": {
       "App\\": "app/",
       "Database\\Factories\\": "database/factories/",
       "Database\\Seeders\\": "database/seeders/"
   },

   "files":[
       "app/Helpers/helpers.php",
      "app\\Helpers\\helpers.php",
   ]
},

hepler.php

<?php

if(!function_exists('showTest')){
    function showTest()
    {
        return "test";
    }
}

if(!function_exists('showTest2')){
    function showTest2()
    {
        return "test 2";
    }
}

And run composer dump-autoload

CodePudding user response：

You should keep all functions of helper files into a helper class. It should be like,

namespace App\Helpers;

use Illuminate\Http\Request;
use App\Models\User;
use Session;

class HelperClass {
  function showTest(){
      return "test";
  }
}

And then use can add namespace like App\Helpers\HelperClass. It should work.

Thanks:)