External functions API
From MoodleDocs
Overview
The External functions API allows you to create fully parameterised methods that can be accessed by external programs (such as Web services).
externallib.php
- This file is located at the root of your plugin.
- This file is composed by a class that contains the external function referenced in services.php
For more information on how to implement the external function read the External functions API documentation.
Example
You will find an example of an external.php file in the web service template plugin. This plugin contains a web service hello_world function. To make testing easy for you, the plugin is distributed with a test client in the folder /client.