Question

有没有办法，使用两个以下数组来获得另一个数组，即这两个数组的组合？

数组1：

    Array
(
[0] => Array
    (
        [a_id] => 9
        [name] => Mario Lopez
    )

[1] => Array
    (
        [a_id] => 8
        [name] => Lisa Turtle
    )

)

数组2：

Array
(
[0] => Array
    (
        [b_id] => 1
        [name] => AC Slater
    )

[1] => Array
    (
        [b_id] => 2
        [name] => Lisa Turtle
    )
[2] => Array
    (
        [b_id] => 3
        [name] => Kelly Kapowski
    )
)

我想得到什么：

    Array
    (
    [0] => Array
        (
            [b_id] => 1
            [name] => AC Slater
        )

    [1] => Array
        (
            [a_id] => 8
            [b_id] => 2
            [name] => Lisa Turtle
        )
    [2] => Array
        (
            [b_id] => 3
            [name] => Kelly Kapowski
        )
     [3] => Array
        (
            [a_id] => 9
            [name] => Mario Lopez
        )
    )

第三个数组合并键名匹配的两个第一个数组我没有找到builtin function并尝试此解决方案但未成功：combine 2 associative arrays where values match。

谢谢，

编辑：对不起，我忘了添加马里奥洛佩兹。我的尝试是：

function array_extend($a, $b) {
    foreach($b as $k=>$v) {
        if( is_array($v) ) {
            if( !isset($a[$k]) OR isset($v[0])) {
                $a[$k] = $v;
            } else {
                $a[$k] = array_extend($a[$k], $v);
            }
        } else {
            $a[$k] = $v;
        }
    }
    return $a;
}

Answer 1

这可能正是你要找的，虽然@OldPadawan已经在问题的评论中指出实际结果与提议的结果不同......

<?php
$a = [
    [
        'a_id' => 9,
        'name' => 'Mario Lopez'
    ],
    [
        'a_id' => 8,
        'name' => 'Lisa Turtle'
    ]
];
$b = [
    [
        'b_id' => 1,
        'name' => 'AC Slater'
    ],
    [
        'b_id' => 2,
        'name' => 'Lisa Turtle'
    ],
    [
        'b_id' => 3,
        'name' => 'Kelly Kapowski'
    ]
];
$c = $a;
array_walk($b, function($be) use (&$c) {
    $done = false;
    array_walk($c, function(&$ce) use($be, &$done) {
        if ($ce['name'] == $be['name']) {
            $ce['b_id'] = $be['b_id'];
            $done = true;
        }
    });
    if ( ! $done) {
        array_push($c, $be);
    }
});
print_r($c);

上述代码的输出为：

Array
(
    [0] => Array
        (
            [a_id] => 9
            [name] => Mario Lopez
        )

    [1] => Array
        (
            [a_id] => 8
            [name] => Lisa Turtle
            [b_id] => 2
        )

    [2] => Array
        (
            [b_id] => 1
            [name] => AC Slater
        )

    [3] => Array
        (
            [b_id] => 3
            [name] => Kelly Kapowski
        )

)

php - 如果值匹配，则将值附加到数组中的数组

1 个答案: