prepare($sql); $stmt->bind_param('i', $id); $stmt->execute(); $result = $stmt->get_result(); $synonyms = []; while ($row = $result->fetch_assoc()) { $synonyms[] = [ 'idanalysisvocabulary' => $row['idanalysisvocabulary'], 'nameanalysisvoc' => $row['nameanalysisvoc'] ]; } echo json_encode($synonyms);