larave5.4 How to implement a custom public function creation

Public functions, simply speaking, can be used directly anywhere. Two methods of implementation are briefly introduced. First, create a new helpers.php file in the app directory, using the Customize public function.

Then you need to introduce this custom function,

The first method: the project root directory finds the Bootstrap folder,

, open the autoload.php file and bring in the previously defined helpers.php.

The second kind: using composer to implement, the project root directory found Composer.json file, inside the introduction of custom function file,

Then, execute the composer dump-autoload command under the project root directory.

Both of these methods can be used to create a common function, and can be directly called to this custom function anywhere, very convenient.