I've got some variable variables which i need to check that they are not
 same !
 There can be up to 9 of them !

 for ($i = 1; $i <= $city_only_one; $i++) {
 $citydb = "stellen_city_".$i ;
 $new_city_db.$i = $$citydb;

 and what i need to do is check that
 $new_city_db1 does not equal $new_city_db2 or 3 etc
 and then
 $new_city_db2 does not equal 3 + 4 etc...

 Whats the best way of doing this !??

 Any help appreciated

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