title: Show all keys with phpcassa
body: <p>I'm fairly new to cassandra but i have making good progress so far.</p>
  
  <pre><code>$conn = new ConnectionPool('Cluster');
  $User = new ColumnFamily($conn, 'User');
  
  $index_exp = CassandraUtil::create_index_expression('email', 'John@dsaads.com');
  $index_clause = CassandraUtil::create_index_clause(array($index_exp));
  $rows = $User-&gt;get_indexed_slices($index_clause);
  
  foreach($rows as $key =&gt; $columns) {
  echo $columns['name']."&lt;br /&gt;";
  }
  </code></pre>
  
  <p>Im using this type of query to get specific date from somebodys email adress.
  However, i now want to do 2 things.</p>
  
  <ol>
  <li>Count every user in the database and display the number</li>
  <li>List every user in the database with $columns['name']." ".$columns['email']</li>
  </ol>
  
  <p>In mysql i would just remove the 'where attribute' from the select query, however i think its a little bit more complicated here?</p>