我在db中的给定字段上尝试增加1时出现问题.我尝试了有无活动记录.
我的函数看起来像这样(在我的模型中)
function _set_reads($id){ $this->db->set('reads','reads+1',FALSE) $this->db->where('id',$id); $this->db->update('article'); }
和
function _set_reads($id){ $sql = 'update article set reads=reads+1 where id=?'; $this->db->query($sql,array($id)); }
Error Number: 1064 You have an error in your sql Syntax; check the manual that corresponds to your MysqL server version for the right Syntax to use near 'reads+1 WHERE `id` = '15'' at line 1 UPDATE `article` SET `reads` = reads+1 WHERE `id` = '15'
我使用的是最新版本的MAMP
解决方法
– 需要小的修正
$this->db->where('id',$id); $this->db->set('set_row','`set_row`+ 1',FALSE);
谢谢