ThinkPHP5.1 给字段取别名$arrdata = array( 'aa' => 'id', 'bb' => 'n

$arrdata = array( 'aa' => 'id', 'bb' => 'name', 'cc' => 'fraction', );

$reuslt = Db::name('DBname') ->field($ arrdata) ->select();

dump($reuslt)

{
  [0] =&gt; array(3) {
    ["aa"] =&gt; int(1)
    ["bb"] =&gt; string(9) "张三"
    ["cc"] =&gt; string(1) "60"
  }
  [1] =&gt; array(3) {
    ["aa"] =&gt; int(19)
    ["bb"] =&gt; string(15) "李四"
    ["cc"] =&gt; string(26) "46"
  }
  [2] =&gt; array(3) {
    ["aa"] =&gt; int(20)
    ["bb"] =&gt; string(15) "王五"
    ["cc"] =&gt; string(18) "77"
  }
  [3] =&gt; array(3) {
    ["aa"] =&gt; int(21)
    ["bb"] =&gt; string(12) "赵六"
    ["cc"] =&gt; string(18) "99"
  }
}