Uncaught Error Class Unirest Request not found when creating issue in php

Am trying to create an issue in Jira using Rest API for php.
https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-issues/#api-rest-api-3-issue-post

when I tried to run the code, it throws error Fatal error : Uncaught Error: Class ‘Unirest\Request’ not found.

I have tried to access the unirest site here to get the library, the site does not exist
http://unirest.io/php.html

Hi @EsedoFredrick,

I’m not familiar with the stack you’re using. If you’re still stuck, maybe reach out to a forum relating to the stack.

Regards,
Dugald