php基于数组中的两个键创建计数

我有一个名为

$dinnerDetails

的数组，如下所示

array:5 [▼
  0 => array:7 [▼
    "request_id" => "48"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 3
  ]
  1 => array:7 [▼
    "request_id" => "51"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 3
  ]
  2 => array:7 [▼
    "request_id" => "65"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => null
    "new_dinner" => "no"
    "requestCount" => 3
  ]
  3 => array:7 [▼
    "request_id" => "50"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 2
  ]
  4 => & array:7 [▼
    "request_id" => "52"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 2
  ]
]

array:5 [▼
  0 => array:8 [▼
    "request_id" => "48"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  1 => array:8 [▼
    "request_id" => "51"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  2 => array:8 [▼
    "request_id" => "65"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => null
    "new_dinner" => "no"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  3 => array:8 [▼
    "request_id" => "50"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 2
    "confirmationCount" => 2
  ]
  4 => & array:8 [▼
    "request_id" => "52"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 2
    "confirmationCount" => 2
  ]
]

您会注意到，每个子阵列都有

晚餐id

和

主机id

，如果这两个值都存在，则表示晚餐已确认。我想做的是数一数确定的晚餐数量。在上面的一个数组中，

晚餐id=>36

已经由两个人确认，同样的情况也发生在

晚餐id

=>35上

我想在子数组中添加一个新的

键

，让我们调用它

confirmationCount

，并将已确认的计数与之相对应，以便我的输出如下所示

array:5 [▼
  0 => array:7 [▼
    "request_id" => "48"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 3
  ]
  1 => array:7 [▼
    "request_id" => "51"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 3
  ]
  2 => array:7 [▼
    "request_id" => "65"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => null
    "new_dinner" => "no"
    "requestCount" => 3
  ]
  3 => array:7 [▼
    "request_id" => "50"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 2
  ]
  4 => & array:7 [▼
    "request_id" => "52"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 2
  ]
]

array:5 [▼
  0 => array:8 [▼
    "request_id" => "48"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  1 => array:8 [▼
    "request_id" => "51"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  2 => array:8 [▼
    "request_id" => "65"
    "dinner_id" => "36"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-16T10:00:00"
    "host_id" => null
    "new_dinner" => "no"
    "requestCount" => 3
    "confirmationCount" => 2
  ]
  3 => array:8 [▼
    "request_id" => "50"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "yes"
    "requestCount" => 2
    "confirmationCount" => 2
  ]
  4 => & array:8 [▼
    "request_id" => "52"
    "dinner_id" => "35"
    "dinner_name" => "Black Tie"
    "dinner_date" => "2016-05-27T10:00:00"
    "host_id" => "77"
    "new_dinner" => "no"
    "requestCount" => 2
    "confirmationCount" => 2
  ]
]

为此，我编写了两次

foreach

循环，第一个循环准备数组，第二个循环添加我需要的计数

$dinnerDetails = array();
$lastDinnerDate = '';
$newDate = '';
$countDinner = array();
$countConfirmation = array();
//Prepare an array of requests so it can be passed back to the controller
foreach ($invitations as $invitation) {

        $countDinner[$invitation['dinner_id']] = isset($countDinner[$invitation['dinner_id']]) ? $countDinner[$invitation['dinner_id']] + 1 : 1;
        $countConfirmation[$invitation['host_id']] = isset($countConfirmation[$invitation['host_id']]) ? $countConfirmation[$invitation['host_id']] + 1 : 1;

        //If the date changes then assign yes, this is used on front end to display date on top of requests
        if (strtotime($invitation['dinner_date']) > $lastDinnerDate) {
            $newDate = 'yes';
        } else {
            $newDate = 'no';
        }

        $lastDinnerDate = strtotime($invitation['dinner_date']);

        $dinnerDetails[] = array(
            'request_id' => $invitation['request_id'],
            'dinner_id' => $invitation['dinner_id'],
            'dinner_name' => $invitation['dinner_name'],
            'dinner_date' => $invitation['dinner_date'],
            'host_id' => $invitation['host_id'],
            'new_dinner' => $newDate,
        );

}

foreach ($dinnerDetails as &$dinnerDetail) {
    $dinnerDetail['requestCount'] = $countDinner[$dinnerDetail['dinner_id']];
    $dinnerDetail['confirmationCount'] = $countConfirmation[$dinnerDetail['host_id']];
}

我遇到的问题在下面的代码中

$countConfirmation[$invitation['host_id']] = isset($countConfirmation[$invitation['host_id']]) ? $countConfirmation[$invitation['host_id']] + 1 : 1;

---

我需要以这样一种方式更新此代码，即它还需要考虑

晚餐\u id

，以便我得到的结果“确认计数”与晚餐相关联。现在，无论确认是否与正确的晚餐链接，它都会查找主机id并返回结果。

此方法基于多维数组。因此，您正在以

$countConfirmation[77][36]

的方式向

$countConfirmation[77][36]写入信息，其中
77
是
host\u id
并且
36
是
晚餐\u id
在第二个循环中，您确切地知道
host=77
订购了多少晚餐，所以只需将这些信息添加到数组中

一种快速的方法是改变：

$countConfirmation[$invitation['host_id']] = isset($countConfirmation[$invitation['host_id']]) ? $countConfirmation[$invitation['host_id']] + 1 : 1;

到


更改后，您将收到双量程阵列类型：

[ "77" : 
    [ 
        "36"  : "2",
        "35"  : "2"
    ],

  "othe_host_id" : 
    [
        "other_dinner_id"  : "count_of_orders",
        "other_dinner_id_2"  : "count_of_orders_2",
    ],  
]


在第二个循环中，而不是：

$dinnerDetail['confirmationCount'] = $countConfirmation[$dinnerDetail['host_id']];

进行此操作，以便通过两个参数检查信息，
host\u id
和
dinner\u id
：

$dinnerDetail['confirmationCount'] = $countConfirmation[$dinnerDetail['host_id']][$dinnerDetail['dinner_id']];

我不太明白，如果
晚餐id
和
主人id
都设置好了，你只想
$countConfirmation[$invitation['host\u id']]
启动？@Epodax是的，你是对的，它已经在这样做了，但它并没有考虑到
晚餐id
，例如，现在我为
晚餐id=>36得到的
计数确认
是
4
，而应该是
2
。它给出4的原因是因为它对其他晚餐计算相同的
host\u id
too@FrayneKonok我不认为这是我需要的你想通过创建
$dinnerDetail
？@FrayneKonok创建后，数据显示在前端你能解释一下更改吗，它似乎给出了相同的结果。第一个更改是抛出一个通知，通知：未定义的索引：dinner\u id
@Saadia用于哪个变量？它是用于
[$invitation['dinner\u id']]
中使用的
$countConfirmation[$invitation['host\u id'][$invitation['dinner\u id']]
这意味着您有一些数组没有
晚餐id
？