title: apache solr 5.3.0 search in multiple core
body: <p>I am using solr 5.3.0 , I have 6 core. schema of all 6 core is same. now I want to search query in all 6 core at one time. Is there any way to do it? I am using php solarium. It will be really helpful is anyone can share small example code.</p>
  
  <p>Thanks in advance </p>