mysql - PHP Mysqli trigger a query one after other -

i trying fetch first id 1 table , later after ids fetched trying fetch number of id's.

my problem

• as want select value of first query completion result

• i unable trigger second query after first query completed both triggerid @ time

  first query

  $query ="select * abc  xyz='xyz' , standard='xyz' ";         $data=mysqli_query($mysqli,$query)or die(mysqli_error());         $id = array();         while($row=mysqli_fetch_array($data)){             $id[] = $row['id'];       }     $idall = "'" . implode("','", $id) . "'"; 

second query

        $query="select  mobno euser userid in ($idall)" ;                     $data=mysqli_query($mysqli,$query)or die(mysqli_error());                     $mobiles = array();                     while($row=mysqli_fetch_array($data)){                         $mobiles[] = $row['mobilenum'];                      }                     $mobilesstr = implode(',', $mobiles);                       echo $mobilesstr;                   } 

try

select  mobno euser userid in (select id abc  xyz='xyz' , standard='xyz');