Question

my array is (coming from database)

Array ( [0] => Array ( [date] => 2011-05-12 [user_id] => 48 ) [1] => Array ( [date] => 2011-05-31 [user_id] => 77 ) [2] => Array ( [date] => 2011-05-03 [user_id] => 318 ) [3] => Array ( [date] => 2011-05-20 [user_id] => 619 ) [4] => Array ( [date] => 2011-05-21 [user_id] => 619 ) [5] => Array ( [date] => 2011-05-25 [user_id] => 619 ) [6] => Array ( [date] => 2011-05-28 [user_id] => 619 ) [7] => Array ( [date] => 2011-05-11 [user_id] => 747 ) [8] => Array ( [date] => 2011-05-12 [user_id] => 747 ) [9] => Array ( [date] => 2011-05-29 [user_id] => 747 ) [count] => 10 )

and when i use

foreach($appVenueAmbassador as $kk => $venueUserId){

            $unique[] = $appVenueAmbassador[$kk]['user_id'];

        }

on that query then i get

Array ( [0] => 48 [1] => 77 [2] => 318 [3] => 619 [4] => 619 [5] => 619 [6] => 619 [7] => 747 [8] => 747 [9] => 747 [10] => )

means last element is coming blank
how can i solve this problem ?

Answer 1

That would be because the last element is [count] => 10 and doesn’t have a user_id. You should be seeing a warning regarding this if you’d switch on error reporting. Also, the way you’re grabbing that value is quite overcomplicated. Try this:

foreach ($appVenueAmbassador as $venue){
   if (isset($venue['user_id'])) {
       $unique[] = $venue['user_id'];
   }
}