Building a central index with Lucene + Solr

[Álvaro Vargas Quezada]

Hi everyone!
I'm trying to develop a central index, I installed Solr and I reach the screen 
that I attach. But the problem is that I don't know how to continue since this 
point, I wanted to develop an app in php which use Solr, but I don't know how, 
anyone that can help me maybe with a tutorial or something like that?
Thanks and greetz from Chile!