Architecture is x86. I have insatlled the enterprise version of couchbase but i try to run hello-couchbase.php code then it is giving error CouchbaseCluster not found. After searching on google i found that i have to install php sdk but i don’t know to install it. As i already informed i am having window system , xampp version 3.2.1 and php version is 5.5.24. Please help me in insatlling the php sdk from base level.