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May 22nd, 2018
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  1. <?php
  2. //Prüfen ob benutzer schon in Gruppe ist z.B.
  3. $query = mysql_query("SELECT alter,username FROM users WHERE username = '$username' AND alter = ''");
  4. $count = mysql_num_rows($query);
  5.  
  6. if(isset($_POST['Deine POST variable'])){
  7. //User wird in neue Gruppe getan
  8. $alter = $_POST['alter'];
  9. //UPDATE
  10.  
  11. if($count == 1){
  12. echo "Du bist schon in einer Altersgruppe";
  13. }
  14. else{
  15. mysql_query("UPDATE users SET alter = '$alter'");
  16. echo "Altersgruppe erfolgreich gesetzt";
  17. }
  18.  
  19. }
  20. ?>
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