php - 如何将数组的格式更改为集合作为 laravel 中的每个项目

Question

我有一系列如下所示的集合:

array:9 [▼
  0 => Collection {#990 ▶}
  1 => Collection {#1109 ▶}
  2 => Collection {#1221 ▶}
  3 => Collection {#1331 ▶}
  4 => Collection {#1442 ▶}
  5 => Collection {#1554 ▶}
  6 => Collection {#1664 ▶}
  7 => Collection {#1775 ▶}
  8 => Collection {#1887 ▶}
]

我想把它做成一个单一的集合，并将每个集合作为该集合的一项，现在我尝试的是 collect($f) 但我得到的结果如下:

Collection {#1443 ▼
  #items: array:9 [▼
    0 => Collection {#990 ▶}
    1 => Collection {#1109 ▶}
    2 => Collection {#1221 ▶}
    3 => Collection {#1331 ▶}
    4 => Collection {#1442 ▶}
    5 => Collection {#1554 ▶}
    6 => Collection {#1664 ▶}
    7 => Collection {#1775 ▶}
    8 => Collection {#1887 ▶}
  ]
}

现在我想知道如何制作这 1 个集合并将所有这 8 个集合作为该集合的项目，如下所示:

Collection {#990 ▼
  #items: array:1 [▼
    0 => RoomPricingHistory {#971 ▶}
    1 => RoomPricingHistory {#971 ▶}
    2 => RoomPricingHistory {#971 ▶}
    3 => RoomPricingHistory {#971 ▶}
    4 => RoomPricingHistory {#971 ▶}

  ]
}

谢谢

Answer 1

一旦你有了一个收藏集，你就可以使用flatten获取父集合中基础集合的所有元素。

collect($f)->flatten(1);