It involves several steps to Make a call through the Microsoft Teams API in PHP. Firstly, one needs to register an application with Microsoft and obtain an access token. This is done through the Microsoft Teams API documentation by providing necessary credentials and following the given instructions. Once the access token is obtained, you will need to install the PHP SDK for Microsoft Graph, which is a library that simplifies making API calls to Microsoft Teams. This can be done by running a command in the terminal, which installs the necessary dependencies.

After installing the SDK, you can use it to make API calls to Microsoft Teams by initializing the Graph client, setting the access token and creating a request using the SDK. The request can be used to create a new online meeting, get the meeting details, delete the meeting and many more depending on the requirement. In the given example, we are creating an online meeting object and setting the subject of the meeting, then creating a request to create the meeting and executing it. We can then get the join URL from the response and use it to join the meeting.

It’s important to note that this is a basic example of how to make a call through the Microsoft Teams API in PHP, and there are many other options and features that can be used depending on the requirement. The Microsoft Teams API documentation and the documentation for the PHP SDK for Microsoft Graph provide more information on how to make calls and use the SDK.

Here is an example of how to make a call through the Microsoft Teams API in PHP:

1. First, you will need to register your application with Microsoft and obtain an access token. This can be done by following the instructions on the Microsoft Teams API documentation.
2. Next, you will need to install the PHP SDK for Microsoft Graph. This can be done by running the following command in your terminal:

composer require microsoft/microsoft-graph

3. Once you have the SDK installed, you can use it to make API calls to Microsoft Teams. Here is an example of how to make a call to create a new online meeting:

<?php
require_once 'vendor/autoload.php';

use Microsoft\Graph\Graph;
use Microsoft\Graph\Model;

// Initialize the Graph client
$client = new Graph();
$client->setAccessToken("your_access_token_here");

// Create the online meeting object
$onlineMeeting = new Model\OnlineMeeting();
$onlineMeeting->setSubject("Test Meeting");

// Make the API call to create the meeting
$response = $client->createRequest("post", "/me/onlineMeetings")
    ->attachBody($onlineMeeting)
    ->execute();

// Get the meeting join URL from the response
$joinUrl = $response->getJoinUrl();

echo "Join the meeting at: " . $joinUrl;
?>

Note that this is just a simple example, and there are many other options and features that can be used when making calls to the Microsoft Teams API. You can find more information on how to make calls and use the SDK in the Microsoft Teams API documentation and the documentation for the PHP SDK for Microsoft Graph.

Also, to make this code work, you’ll need to replace “your_access_token_here” with the actual access token obtained in step 1.