Question

有没有一种比较两个数组的快速方法，其中第二个数组包含第一个数组中的所有键，但还有其他键？

例如，给定下面的两个数组，我希望第一个数组中的最后两个元素在第二个数组中不存在：

$input = [
    [
        'firstName' => 'Paula',
        'lastName' => 'Fisher',
        'companyName' => 'Ankunding-Braun'
    ],
    [
        'firstName' => 'Elliot',
        'lastName' => 'Roob',
        'companyName' => 'Feeney PLC'
    ],
    [
        'firstName' => 'Jammie',
        'lastName' => 'Morar',
        'companyName' => 'Pollich PLC'
    ],
    [
        'firstName' => 'Tyrell',
        'lastName' => 'Mills',
        'companyName' => 'Oberbrunner, Kulas and Rice'
    ],
    [
        'firstName' => 'Fred',
        'lastName' => 'Johnson',
        'companyName' => 'Pollich PLC'
    ],
    [
        'firstName' => 'Tyrell',
        'lastName' => 'Bloggs',
        'companyName' => 'BBC East'
    ],
];

$output = [
    [
        "id" => 1,
        "firstName" => "Paula",
        "lastName" => "Fisher",
        "salutation" => "Prof.",
        "email" => "jane.fritsch@gutmann.com",
        "phone" => "1-887-271-5742 x394",
        "mobileNumber" => "1-558-612-4089 x45355"
    ],
    [
        "id" => 2,
        "firstName" => "Elliot",
        "lastName" => "Roob",
        "salutation" => "Prof.",
        "email" => "reinger.keenan@hyatt.com",
        "phone" => "+1-378-385-3633",
        "mobileNumber" => "1-815-769-2297",
    ],
    [
        "id" => 3,
        "firstName" => "Jammie",
        "lastName" => "Morar",
        "salutation" => "Mr.",
        "email"=> "amir95@becker.com",
        "phone" => "(694) 767-1593 x5966",
        "mobileNumber" => "204-991-3292",
    ],
    [
        "id" => 4,
        "firstName" => "Tyrell",
        "lastName" => "Mills",
        "salutation"=> "Mrs.",
        "email" => "crist.rick@cronin.biz",
        "phone" => "462-385-0569 x22876",
        "mobileNumber" => "532-369-9039"
    ]
];

作为一点上下文，我试图返回数据库中不存在的所有记录（检查名字，姓氏和公司名称）。如果有一个更好的方法使用数据库这样做很棒，但我自己也想不到任何东西，所以我已经返回了找到的记录，现在想要从搜索到的数组中删除找到的记录 - 因此留给我不存在的记录。

Answer 1

要查找结果中未找到的搜索，您可以：

// I can't "query", this is for demonstration based on the question data.
// The assumption here is that this is a hydrated to array resultset from a
// Doctrine ORM query, but it should work for any array comparison of this 
// sort.
$filtered = array_filter($output, function($row) use($input) {
    return array_reduce($input, function($carry, $compare) use($row) {
        return $carry || (
            $compare['firstName'] == $row['firstName']
            && $compare['lastName'] == $row['lastName']
            // Uncomment this if you want, and have, companyName to compare.
            // && $compare['companyName'] == $row['companyName']
        );
    });
});

$notfound = array_filter($input, function($search) use($filtered) {
    // Note the negation here, this uses array_reduce() to tell us when
    // there's a "hit", we're looking for $search rows with no "hit".
    return !array_reduce($filtered, function($carry, $row) use($search) {
        return $carry || (
            $search['firstName'] == $row['firstName']
            && $search['lastName'] == $row['lastName']
            // Uncomment this if you want, and have, companyName to compare.
            // Note that the hydrated resultset needs to account for this.
            // && $compare['companyName'] == $row['companyName']
        );
    });
});

https://3v4l.org/Rck9V

比较一个关联数组，其中array2有其他键

1 个答案: