MySQL update 欄內自加1[例counter] 基於MySQL數據庫計數器的基礎 PHP $sql = "UPDATE test_table SET test_field = test_field + 1 WHERE id = $id"; $result = $db->query($sql); 12 $sql = "UPDATE test_table SET test_field = test_field + 1 WHERE id = $id";$result = $db->query($sql);