thinkphp的select跟find的区别
thinkphp的select和find的区别
thinkphp是比较好的php开发框架,能比较快速的开发MVC架构的管理系统,我们需要用到 select()和find()方法,两个方法都能返回数据集数组,但有什么不同呢?先看一下我的代码对比:
$tech=M('techlevel','HR_CS_','DB_CONFIG2');$Data=$tech->where('id=1')->find();dump($Data);$Data=$tech->where('id=1')->select();dump($Data);
结果
array(6) { ["ID"] => int(1) ["TechLevel"] => string(2) "10" ["Remark"] => string(4) "??" ["CreateDate"] => string(19) "2013-03-14 15:14:38" ["CreateBy"] => string(5) "admin" ["ROW_NUMBER"] => string(1) "1"}array(1) { [0] => array(6) { ["ID"] => int(1) ["TechLevel"] => string(2) "10" ["Remark"] => string(4) "??" ["CreateDate"] => string(19) "2013-03-14 15:14:38" ["CreateBy"] => string(5) "admin" ["ROW_NUMBER"] => string(1) "1" }}
从上面的代码可以看出,find()返回一个一维数组,select()返回一个二维数组,所以在取值时有所不同,一维数组取值用$data["TechLevel"],二维数组取值用$data[0]["TechLevel"],由于一开始没了解这个用法,调试一天也取不值,最后有dump方法才看到两个方法的不同所在!

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