php - php如何按id分组

Question

我是 PHP 新手。我正在处理数组数据结构。目前，我得到了两个结果，它们的 ID 相同，但细节不同。我需要根据 ID 组合详细信息。

这是我的数组结果

array:2 [
  0 => array:13 [
    "id" => "1"
    "date" => "01-02-2019"
    "order" => array:1 [
      0 => array:2 [
        "code" => "F001"
        "name" => "fish"
      ]
    ]
  ]

  1 => array:13 [
    "id" => "1"
    "date" => "01-02-2019"
    "order" => array:1 [
      0 => array:2 [
        "code" => "F002"
        "name" => "chicken"
      ]
    ]
  ]
]

这是我的预期结果

array:1 [
  0 => array:13 [
    "id" => "1"
    "date" => "01-02-2019"
    "order" => array:2 [
      0 => array:2 [
        "code" => "F001"
        "name" => "fish"
      ]
      1 => array:2 [
        "code" => "F002"
        "name" => "chicken"
      ]
    ]
  ]
]

如果有相同的ID，我正在尝试插入订单数组

这是我的代码

public function order($value)
    {
        $group_id = [];
    $groupItem = [];
    foreach ($value as $item) {
        $item['date'] = date('Y-m-d',strtotime($item['date']));
        $groupItem = $item['order'][] = [
                     'id' => $item['id'],
                     'name' => $item['name'],
                       ];

        $group_id[$item['id']][]= $groupItem; 
    }
}

结果

array:1 [
  "1" => array:1 [
      0 => array:2 [
        "code" => "F001"
        "name" => "fish"
      ]
      1 => array:2 [
        "code" => "F002"
        "name" => "chicken"
      ]
    ]
]

如您所见，我将order日期和 id 分组但丢失了。

标签： phparraysmultidimensional-array

Answer 1

分配适当的数据。尝试 -

foreach ($value as $item) {
    $date = date('Y-m-d',strtotime($item['date']));
    $id = $item['id'];
    $group_id[$id]['id'] = $id;
    $group_id[$id]['date'] = $date;
    $group_id[$id]['order'][] = [
         'id' => $item['id'],
         'name' => $item['name'],
    ];
}