php - 在多维数组中的php中排序时忽略重音字符

Question

我有如下所示的多维数组，我想在其中根据[name]字段进行排序。此外，重音字母应该像没有重音一样排序。

Array
(
    [chicago] => Array
        (
            [community_name] => Chicago, IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => HELLO WORLD.
                                )
                        )

                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Hello
                                )

                        )

                    [2] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Administration.
                                )
                        )
                )

        )

    [chicago-and-surrounding-areas] => Array
        (
            [community_name] => Chicago (and surrounding areas), IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Covit Corp. 
                                )
                        )
                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Câble-Axion Digital Corp. 
                                )
                        )   
                )

        )

    [cambridge-chicago] => Array
        (
            [community_name] => Cambridge (Chicago), IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Avocados.
                                )
                        )
                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Aṕple.
                                )
                        )   
                )

        )

)

这就是我想要实现的目标：

Array
(
    [chicago] => Array
        (
            [community_name] => Chicago, IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Administration.
                                )
                        )

                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => HELLO WORLD. 
                                )

                        )

                    [2] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Hello
                                )
                        )
                )

        )

    [chicago-and-surrounding-areas] => Array
        (
            [community_name] => Chicago (and surrounding areas), IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Câble-Axion Digital Corp.
                                )
                        )
                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Covit Corp. 
                                )
                        )   
                )

        )

    [cambridge-chicago] => Array
        (
            [community_name] => Cambridge (Chicago), IL
            [areas] => Array
                (
                    [0] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Aṕple.
                                )
                        )
                    [1] => Array
                        (
                            [name] => Array
                                (
                                    [0] => Avocados.
                                )
                        )   
                )

        )

)

这是我尝试过的，但我想知道它是否适用于所有情况。在某些情况下，即使在对重音字母进行排序后，其排名也低于非重音字母。

我想知道我应该在下面的代码中进行哪些更改，以便重音字母应该像没有重音一样排序。

foreach ($array as &$locality) {
    usort($locality['areas'], function ($a, $b) {
        // return $a['name'][0] <=> $b['name'][0];
        return iconv('UTF-8', 'ISO-8859-8//TRANSLIT', $a['name'][0]) <=> iconv('UTF-8', 'ISO-8859-8//TRANSLIT', $b['name'][0]);
    });
}

标签： phparrayssortingiconv

Answer 1

使用 intl 的 Collat​​or：

$arr = [
  ['key' => 'Avocado'],
  ['key' => 'Aṕple'],
];

$c = new Collator('root');
usort(
    $arr,
    function($a, $b) use($c){
        return $c->compare($a['key'], $b['key']);
    }
);
var_dump($arr);

输出：

array(2) {
  [0]=>
  array(1) {
    ["key"]=>
    string(7) "Aṕple"
  }
  [1]=>
  array(1) {
    ["key"]=>
    string(7) "Avocado"
  }
}

其中“root”使用一组默认规则，这些规则似乎可以根据需要忽略重音，但您可以为特定语言的排序顺序指定实际的语言环境。