Question

将一个数组与另一个多维数组进行比较时遇到问题。

我想将数组A与B进行比较，并检查数组B中缺少数组A中的哪些日期（值）。

在缺少日期的地方，我想在数组A中插入带有“日期值”的“日期”键，以及键“counter”=＆gt; 0

$A = [
    0 => "2018-03",
    1 => "2018-02",
    2 => "2018-01",
    3 => "2017-12",
    4 => "2017-11",
    5 => "2017-10"
];

$B = [
    0 => [
        'logins' => [
            0 => [
                "date" => "2018-03",
                "counter" => "65"
            ],
            1 => [
                "date" => "2018-02",
                "counter" => "40"
            ],
            2 => [
                "date" => "2017-12",
                "counter" => "77"
            ]
        ]
    ],
    1 => [
        'logins' => [
            0 => [
                "date" => "2018-02",
                "counter" => "44"
            ],
            1 => [
                "date" => "2018-01",
                "counter" => "24"
            ]
        ]
    ]
];

结果数组C应如下所示：

$C = [
    [
        'logins' => [
            ['date' => '2018-03', 'counter' => 65],
            ['date' => '2018-02', 'counter' => 40],
            ['date' => '2018-01', 'counter' => 0],
            ['date' => '2017-12', 'counter' => 77],
            ['date' => '2017-11', 'counter' => 0],
            ['date' => '2017-10', 'counter' => 0],
        ],
    ],
    [
        'logins' => [
            ['date' => '2018-03', 'counter' => 0],
            ['date' => '2018-02', 'counter' => 44],
            ['date' => '2018-01', 'counter' => 24],
            ['date' => '2017-12', 'counter' => 0],
            ['date' => '2017-11', 'counter' => 0],
            ['date' => '2017-10', 'counter' => 0],
        ],
    ]
];

Answer 1

循环$B然后在$A上的每个项目循环上，检查是否找到了日期，如果没有，则添加它，然后按$A对数组进行排序。

<?php
foreach ($B as &$row) {
    foreach ($A as $date) {
        if (!in_array($date, array_column($row['logins'], 'date'))) {
            $row['logins'][] = [
                "date" => $date,
                "counter" => 0
            ];
        }

    }
    array_multisort($row['logins'], SORT_DESC, $A);
}

print_r($B);

https://3v4l.org/6Ri6I

<强>结果：

将单维数组与多维数组php

1 个答案: