How to create custom helper file in laravel 5.6? - laravel

Question

When I create an autoload helper file with composer following error ocures:
Fatal error: composerRequireebefe31fc60fbe2897fba8c156ec310c(): Failed
opening required
'D:\xampp\htdocs\common_module\vendor\composer/../../app/Http/helpers.php'
(include_path='D:\xampp\php\PEAR') in
D:\xampp\htdocs\common_module\vendor\composer\autoload_real.php on
line 66

Answer 1

Following are steps to create a Custom Helper In Laravel 5.5
Step : 1 Create app/helpers.php file
First, create one helper class file in app/helpers.php path and in this file we are write our any custom helper logic into the function.
Step : 2 Add app/helpers.php file in composer.json file
Now, we are add our app/helpers.php file in composer.json file for a autoload section.
"autoload": {
"classmap": [
...
],
"psr-4": {
"App\\": "app/"
},
"files": [
"app/helpers.php" //Add This Line
]
},
After done this then once we are run following command.
composer dump-autoload
for more visit following link
Visit How To Create Custom Helper In Laravel 5.5
I hope this will help you...

Answer 2

In older version of Laravel I do the following:
app folder create a Helpers folder
Create a class YourHelper class file
in that class file set namespace to App\Helpers
Name the class file
in config/app.php in aliases create an alias (so you can call the helper in your view also) 'YourHelper'=>'App\Helpers\YourHelper::class'

Answer 3

If you are new to Laravel or PHP, let’s walk through how you might go about creating your own helper functions that automatically get loaded by Laravel.
Creating a Helpers file in a Laravel App
you can organize the location of your helper file(s) however you want, however, here are a few suggested locations:
app/helpers.php
app/Http/helpers.php
I prefer to keep mine in app/helpers.php in the root of the application namespace.
Autoloading
PHP functions cannot be autoloaded. However, we have a much better solution through Composer than using require or require_once.
So composer has a files key (which is an array of file paths) that you can define inside of autoload:
"autoload": {
"files": [
"app/helpers.php"
],
"classmap": [
"database/seeds",
"database/factories"
],
"psr-4": {
"App\\": "app/"
}
},
Once you add a new path to the files array, you need to dump the autoloader:
composer dump-autoload
(Use this command after changing composer.json.)
Now on every request the helpers.php file will be loaded automatically because Laravel requires Composer’s autoloader in public/index.php:
require __DIR__.'/../vendor/autoload.php';
Defining Functions
Defining functions in your helpers class is the easy part, although, there are a few caveats. All of the Laravel helper files are wrapped in a check to avoid function definition collisions:
if (! function_exists('env')) {
function env($key, $default = null) {
// ...
}
}
I prefer to use function_exists checks in my application helpers, but if you are defining helpers within the context of your application, you could forgo the function_exists check.