Question

我有这个数组，但我想按照我的标准对其进行排序。

我想如果“country”和“top”相同，那么他们就是在一个地方。稍微下面给出一个我的意思的例子。

$array = array(
    array("city" => "New York", "country" => "USA", "top" => "1"),
    array("city" => "London", "country" => "UK", "top" => "1"),
    array("city" => "Sofia", "country" => "BG", "top" => "1"),
    array("city" => "Belgrad", "country" => "SRB", "top" => "2"),
    array("city" => "Varna", "country" => "BG", "top" => "2"),
    array("city" => "LA", "country" => "UK", "top" => "1"),
    array("city" => "Bat", "country" => "USA", "top" => "1")
);

这是数组：

Array
(
    [0] => Array
        (
            [city] => New York
            [country] => USA
            [top] => 1
        )

    [1] => Array
        (
            [city] => London
            [country] => UK
            [top] => 1
        )

    [2] => Array
        (
            [city] => Sofia
            [country] => BG
            [top] => 1
        )

    [3] => Array
        (
            [city] => Belgrad
            [country] => SRB
            [top] => 2
        )

    [4] => Array
        (
            [city] => Varna
            [country] => BG
            [top] => 2
        )

    [5] => Array
        (
            [city] => LA
            [country] => USA
            [top] => 1
        )

    [6] => Array
        (
            [city] => Bat
            [country] => UK
            [top] => 1
        )
)

我想要这个结果：

Array
(
    [0] => Array
        (
            [0] => Array 
                (
                    [city] => New York
                    [country] => USA
                    [top] => 1
                )

            [1] => Array
                (
                    [city] => LA
                    [country] => USA
                    [top] => 1
                )
            [2] => Array
                (
                    [top_cities] => 2
                )
        )

    [1] => Array
        (
            [0] => Array 
                (
                    [city] => London
                    [country] => UK
                    [top] => 1
                )
            [1] => Array
                (
                    [city] => Bat
                    [country] => UK
                    [top] => 1
                )
            [2] => Array
                (
                    [top_cities] => 2
                )
        )

    [2] => Array
        (
            [0] => Array 
                (
                    [city] => Sofia
                    [country] => BG
                    [top] => 1
                )
        )

    [3] => Array
        (
            [city] => Belgrad
            [country] => SRB
            [top] => 2
        )

    [4] => Array
        (
            [city] => Varna
            [country] => BG
            [top] => 2
        )
)

标准（必须匹配）：国家最佳并计算此数组中顶部的总和（总和）

如果有人知道如何处理这个问题，我将非常感激。提前谢谢。

Answer 1

尝试以下代码。结果有很多修改。但我相信它会对你有用

$array = array(
    array("city" => "New York", "country" => "USA", "top" => "1"),
    array("city" => "London", "country" => "UK", "top" => "1"),
    array("city" => "Sofia", "country" => "BG", "top" => "1"),
    array("city" => "Belgrad", "country" => "SRB", "top" => "2"),
    array("city" => "Varna", "country" => "BG", "top" => "2"),
    array("city" => "LA", "country" => "UK", "top" => "1"),
    array("city" => "Bat", "country" => "USA", "top" => "1")
);

$newArray = array();
foreach($array as $key => $val){
    $newArray[$val['country']][] = $val;
}
print_r($newArray);

PHP数组按标准排序

1 个答案: