title: results from $wpdb->last_query
body: <p>I am attempting to move a single page into Wordpress as a plugin as an Admin menu. I first verify that isset($wpdb) but my test query fails. I do $wpdb->last_query and I don't understand the results.</p>
  
  <p>This is what I try:</p>
  
  <pre><code>    $clientquery = $wpdb-&gt;query("select post_title from wp_posts where id=390");
      exit(var_dump( $wpdb-&gt;last_query));
  </code></pre>
  
  <p>This is the result:</p>
  
  <blockquote>
  <pre><code>string(44) "select post_title from wp_posts where id=390"
  </code></pre>
  </blockquote>
  
  <p>Where is string(44) coming from?  BTW, I am absolutely new to developing in PHP and Wordpress learning this on my own.</p>
  
  <p>Also, if I change the query to "select * from ..." the result changes to string(35)... . What?</p>