title: Show only if not exist in mysql
body: <p>I have a table with skiers and ski stations that they are skied in.</p>
  
  <p>For example:</p>
  
  <pre>
  ---------------------
     skier     station
  ---------------------
  |    1     |    2
  |    1     |    3
  |    2     |    2 
  ---------------------
  </pre>
  
  <p>If I have three stations I want to show a text that say that the skier wasn't in this station.</p>
  
  <p>I have:</p>
  
  <pre><code> $result="SELECT * FROM skiers_and_stations WHERE skier = '$id_skier';";
   $makeResult=mysql_query($result, $conexion);
   while ($row = mysql_fetch_array($makeResult, MYSQL_ASSOC)) {
   if ($row['station'] == '1') {   } else {echo "No here before, station 1"}; 
   if ($row['station'] == '2') {   } else {echo "No here before, station 2"}; 
   if ($row['station'] == '3') {   } else {echo "No here before, station 3"}; 
   }
  </code></pre>
  
  <p>But it doesn't work.</p>
  
  <p>I want to display:</p>
  
  <pre>
  Skier 1 
  No here before, station 1
  </pre>