Requirements

PHP

PHP >= 7.4 is required for this library.

PHP Extensions

• json

• libxml

• simplexml

Packages

In order to get the CAS Lib library running, you will require some dependencies.

To give a maximum freedom to the users using CAS Lib, each required dependencies is a well defined standardized PHP class.

Dependency	PSR	Implementations	Example package
Cache	PSR-6	cache-implementation	symfony/cache
HTTP Message	PSR-7	http-message-implementations	nyholm/psr7
HTTP Factory	PSR-17	http-factory-implementations	loophp/psr17
HTTP Client	PSR-18	http-client-implementations	symfony/http-client

You are free to use any package you want, as long as they are implementing the proper requirement.

CAS Lib only returns standardized HTTP responses, you will need to emit the response back to the client.

You may use custom code for that, but you can also use any of the following packages for this

• zendframework/zend-httphandlerrunner

• http-interop/response-sender