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HomeBackend DevelopmentPHP Tutorial 相关于thinkphp文本字段自增

有关于thinkphp文本字段自增
我要做到的效果是
UPDATE `com_cn_selldetail` SET `remark`=remark+'今天多少号' WHERE id=62322

请问这种用TP怎么写。
我用array('exp',"remark+'今天多少号'");
打印出来是:
UPDATE `com_cn_selldetail` SET `remark`=remark+\'今天多少号\' WHERE id=62322


------解决方案--------------------
通过 tp 是做不到的,除非你去修改他的 model 类代码
即便是可以做到,你的 SQL 指令也是错的

文本字段累加,要用 concat
remark=concat(remark,'今天多少号')
------解决方案--------------------
引用:
引用:通过 tp 是做不到的,除非你去修改他的 model 类代码
即便是可以做到,你的 SQL 指令也是错的

文本字段累加,要用 concat
remark=concat(remark,'今天多少号')

可以说一下,这个在TP中要怎么写。

楼上已经说你用直接相加是做不到了,MYSQL中+只能加数字,字符串连接是用concat方法。你这种只能先取出数据,然后用PHP连接后再更新回去。
不过我搞不懂你这个是什么需求,怎么会有人往数据库字段中后面添加一段中文的需求?如果你是所有数据改字段都要加这段中文,那么我建议你直接在MYSQL中运行去掉条件的UPDATE语句。
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