Add Pagination example (#527)

Add a pagination example, see #521

examples/1.2-basic-select.php

@@ -9,6 +9,15 @@ $client = new Solarium\Client($config);
 // get a select query instance
 $query = $client->createQuery($client::QUERY_SELECT);
 
+// Pagination example
+$resulsPerPage = 15;
+$currentPage = 1;
+        
+// Set the number of results to return
+$query->setRows($resultsPerPage);
+// Set the 0-based result to start from, taking into account pagination
+$query->setStart(($currentPage - 1) * $resultsPerPage);
+
 // this executes the query and returns the result
 $resultset = $client->execute($query);