phpCAS is an authentication library that allows PHP applications to easily authenticate users via a Central Authentication Service (CAS) server.
Please see the wiki website for more information:
https://wiki.jasig.org/display/CASC/phpCAS
Api documentation can be found here:
https://apereo.github.io/phpCAS/
Copyright 2007-2015, JA-SIG, Inc. This project includes software developed by Jasig. http://www.jasig.org/
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this software except in compliance with the License. You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.