thinkphp的select跟find的区别

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Release: 2016-06-13 12:51:46
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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);
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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"
  }
}

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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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