//查询名字获取学籍编号
public function getstunum($name=''){
if(''===$name) return null;
$list=D('arch_stu');
$field=array('num','name');
if(is_numeric($name)){
$where['num']=$name;
$where['phone']=$name;
}else{
$where['name']=array('like',"{$name}");
$where['parent']=array('like',"{$name}");
$where['address']=array('like',"{$name}%");
}
$where['_logic']='or';
$arr=$list->where($where)->getField('`num`',true);
return $arr;
}看了一下getField的代码，不加true会加上limit 1，加上true的话获取的值全部是NULL,根据调试模式生成的SQL语句，到phpmyadmin能正确执行 最佳答案
