laravel

Hello, I've developed many projects and saw many developers are using frameworks such as Laravel which i know as well. Is a framework a must or do you prefer your own application base ? Regards

My site is Laravel / PHP based. I'm trying to integrate xenforo into my site with a single login so people who login to my site can be auto-logged into xenforo without the need to login twice. Is there any documentation on that? Can you help me know how to do it?