帝国CMS按栏目ID调用对应栏目字段信息方法

function class_field($classid, $field) {     global $empire, $dbtbpre;     $classid = (int)$classid;     $arr = array('classname', 'bname', 'classimg', 'classpagekey', 'intro');     if (!in_array($field, $arr)) {         return FALSE;     }     if (!$classid || !$field) {         return FALSE;     } else {         $class_sqls = $empire->fetch1("select " . $field . " from " . $dbtbpre . "enewsclass where classid=" . $classid);         return $class_sqls[$field];     } }

<?=class_field(栏目id, '字段名称')?>