合并 2 个具有相同项目数的数组 - php

Question

两个数组 $newResponse 和 $key 中的项目数将始终是 same.For $newResponse 的每个项目，我想添加 [=15] 的项目=] 到 $newResponse 的顺序与它们在 $key 数组中的存在顺序相同，如 预期结果 中所述。我如何实现？

dump($newResponse); 是一个如下所示的数组，它是 foreach 循环的结果。

array:4 [
  0 => array:6 [
    "courseId" => 18
    "courseDisplayName" => "qqq"
  ]
  1 => array:6 [
    "courseId" => 1
    "courseDisplayName" => "ips"
  ]
  2 => array:6 [
    "courseId" => 18
    "courseDisplayName" => "qqq"
  ]
  3 => array:6 [
    "courseId" => 1
    "courseDisplayName" => "ips"
  ]
]

dump($key); 是一个像下面这样的数组，它是另一个 foreach 循环的结果。

array:4[
    0=>[
      "totalPoints" => 2
      "percent" => 1.0
      "id" => 2
    ]
    1=> [
      "totalPoints" => 10
      "percent" => 2
      "id" => 3
    ]
    2=> [
      "totalPoints" => 4
      "percent" => 0.0
      "id" => 6
    ]
    3=> [
      "totalPoints" => 4
      "percent" => 0.0
      "id" => 5
    ]
   ]

预期结果:

[
      [
        "courseId" => 18
        "courseDisplayName" => "qqq"
        "totalPoints" => 2
        "percent" => 1.0
        "id" => 2
      ]
      [
        "courseId" => 1
        "courseDisplayName" => "ips"
        "totalPoints" => 10
        "percent" => 2
        "id" => 3
      ]
      [
        "courseId" => 18
        "courseDisplayName" => "qqq"
        "totalPoints" => 4
        "percent" => 0.0
        "id" => 6
      ]
      [
        "courseId" => 1
        "courseDisplayName" => "ips"
        "totalPoints" => 4
        "percent" => 0.0
        "id" => 5
      ]
    ]

Answer 1

这是一种方法：

假设您的数据是：

        $newResponse = [
            [
                "courseId" => 18,
                "courseDisplayName" => "qqq"
            ],
            [
                "courseId" => 1,
                "courseDisplayName" => "ips",
            ],
            [
                "courseId" => 18,
                "courseDisplayName" => "qqq",
            ],
            [
                "courseId" => 1,
                "courseDisplayName" => "ips",
            ]
        ];

        $key = [
            [
        "totalPoints" => 2,
        "percent" => 1.0,
        "id" => 2
      ],
      [
        "totalPoints" => 10,
        "percent" => 2,
        "id" => 3
      ],
      [
        "totalPoints" => 4,
        "percent" => 0.0,
        "id" => 6
      ],
      [
        "totalPoints" => 4,
        "percent" => 0.0,
        "id" => 5
      ]
    ];

然后我可能会达到 array_map，最近将它用于这种目的：

        $out = [];
        array_map(function($a,$b) use (&$out) {
            $out[] = $a + $b;
        },$newResponse,$key);
        print_r($out);

注意上面的 + 与数组合并非常相似，我相信在您的用例中可以互换。您可以在此处了解差异：Array_merge versus +

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