在laravel转换对象数组 [英] Converting object to array in laravel

问题描述

我问这样它让我一个数组DB：

i queried a DB like this which got me an array:

foreach($oid as $orderid) {
    $orderdetailData[] = DB::table('order_details')
        ->join('orders', 'order_details.oid', '=', 'orders.oid')
        ->select('order_details.oid', 'orders.ostatus')
        ->where('order_details.oid', $orderid)->get();
    }

    $data = array_flatten($orderdetailData);
    return $data;

这是数组我得到

array (size=2)
  0 => 
    object(stdClass)[174]
      public 'oid' => int 1
      public 'ostatus' => string 'Placed' (length=6)
  1 => 
    object(stdClass)[158]
      public 'oid' => int 2
      public 'ostatus' => string 'Placed' (length=6)

我试图让这个数组的形式

I am trying to get this array in the form

array (size=2)
  0 => 
    array (size=2)
      public 'oid' => int 1
      public 'ostatus' => string 'Placed' (length=6)
  1 => 
    array (size=2)
      public 'oid' => int 2
      public 'ostatus' => string 'Placed' (length=6)

我试着这样做：

foreach($orderdetailData as $key => $value){
    $data[] = array_flatten($orderdetailData[$key]);
}

但是，这样做让我的数组形式如下：

But doing this gets me an array in this form:

array (size=2)
  0 => 
    array (size=1)
      0 => 
        object(stdClass)[174]
          public 'oid' => int 1
          public 'ostatus' => string 'Placed' (length=6)
  1 => 
    array (size=1)
      0 => 
        object(stdClass)[158]
          public 'oid' => int 2
          public 'ostatus' => string 'Placed' (length=6)

这是不是我什么，我期待的。谁能告诉我这将是一个简单的方法来做到这一点？谢谢

Which is not i what i am looking for. Can someone tell me what would be an easy way to do this ? Thanks

推荐答案

使用 array_map ，并转换为数组应该是足够：

Using array_map and casting to an array should be sufficient:

$data = array_map(function($object){
    return (array) $object;
}, $data);

我也不会运行在一个循环内的查询。你应该尝试获得从DB一个查询的数据。像这样的东西可以工作：

I also wouldn't run queries inside a loop. You should try getting that data in one query from the db. Something like this could work:

$data = DB::table('order_details')
    ->join('orders', 'order_details.oid', '=', 'orders.oid')
    ->select('order_details.oid', 'orders.ostatus')
    ->whereIn('order_details.oid', $oid)->get();

修改

因为它已经在另一个答案被提到不久让我解释如何通过PDO设置为 FETCH_ASSOC 完成相同的：

DB::setFetchMode(PDO::FETCH_ASSOC);
$data = DB::table('order_details') .... ->get();

然而，这改变了全球的获取模式的请求的其余部分（至少，如果你不打开一个新的连接）。为了救你应该改回来算账：

However this changes the fetch mode globally for the rest of the request (at least if you don't open a new connection). To be save you should change it back afterwards:

DB::setFetchMode(PDO::FETCH_ASSOC);
$data = DB::table('order_details') .... ->get();
DB::setFetchMode(PDO::FETCH_CLASS);

甚至事先做好备份，如果你不能肯定是干什么用的默认值：

Or even back it up first if you can't be sure what default is used:

$fetchModeBefore = DB::getFetchMode();
DB::setFetchMode(PDO::FETCH_ASSOC);
$data = DB::table('order_details') .... ->get();
DB::setFetchMode($fetchModeBefore);

这篇关于在laravel转换对象数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！