php - MySQL Error: Commands out of sync; you can't run this command now -

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mysql error: commands out of sync; can't run command now

i above error when try execute sql procedure more once each time.

i've found has "store result", i've been trying figure out while, haven't succeeded yet.

here php code:

$query = "call getobjectsvalue(".$formid.")";  if( $res = $mysqli->query($query) ) {     $mysqli->store_result();      while ($row = $res->fetch_assoc())      {          ...      }     $res->free(); }

for reason, recordset stored procedures 1 has loop through using next_result() command. not case if recordset comes directly execution of sql query (select).

$query="call getobjectsvalue($formid)"; if($res=$mysqli->query($query)) {     {     $row = $res->fetch_assoc()     ...   }   while($mysqli->next_result()); //loop through recordset    $res->free(); }

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