title: MYSQL count a specific entry
body: <p>I have a "Top-20" System in my Webinterface where 20 players got listed and sorted by level. Now i want to show the guy, who is logged in, at the bottom of the table and display which entry he is.
  I have made it with photoshop to show how it should be: </p>
  
  <p><img src="https://i.stack.imgur.com/Lsi8r.jpg" alt="enter image description here"></p>
  
  <p>My question is, how can i get the number of this specific entry?
  For the top 20 i have following query: </p>
  
  <pre><code>select username,spielerlevel,member,leader 
  from accounts 
  where adminlevel = 0 
  order by spielerlevel desc 
  limit 20
  </code></pre>
  
  <p>Thanks.</p>