Question

我从Controller获取一些数据并将其传递给View with

// Foreach url get latest 2 Analytics data - This isn't my code but it works
$urls = URL::with('analytics')->get()->map(function($urls) {
        $urls->analytics = $urls->analytics->sortByDesc('created_at')->take(2);
        return $urls;
    });
return view('urls.index')->with('urls', $urls);

在索引视图中我做了这个

@foreach ($urls as $url)
<?php dd($url->analytics); ?>
@endforeach

所以我得到了一些对我来说很新的收藏品。

Collection {#422 ▼
  #items: array:2 [▼
    12 => Analytic {#2076 ▶}
    11 => Analytic {#1951 ▼
      #table: "analytics"
      #connection: null
      #primaryKey: "id"
      #keyType: "int"
      #perPage: 15
      +incrementing: true
      +timestamps: true
      #attributes: array:5 [▼
        "id" => 990
        "quality" => 1
        "url_id" => 23
        "created_at" => "2017-02-20 07:00:02"
        "updated_at" => "2017-02-20 07:00:02"
      ]
      #original: array:5 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #fillable: []
      #guarded: array:1 [▶]
      #dates: []
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      +exists: true
      +wasRecentlyCreated: false
    }
  ]
}

如何获取每个分析的值？我相信我需要像

这样的东西

$url->analytics->(enter_collection)[array_index]['Analytic']['quality'];

我总是在每个网址上得到最后两个分析值，所以我想比较它们

Answer 1

看起来您需要仔细查看Collections文档！在您的特定情况下，由于您只使用其中的2个，您可以执行以下操作：

$url->analytics->first()->quality
$url->analytics->last()->quality

但是，集合确实会实现ArrayAccess，因此您还可以执行$url->analytics[index]->quality之类的操作。

如何回显Collection数组中的变量？

1 个答案: