我的wordpress插件中包含以下代码，用于添加自定义url重写：

add_action(\'init\', function() {
    add_rewrite_rule( \'^cities/(.*)/browse/(.*)/(.*)/(.*)/(.*)\',
        \'index.php?city_name=$matches[1]&cat_name[]=$matches[2]&cat_name[]=$matches[3]&cat_name[]=$matches[4]&cat_name[]=$matches[5]\',
        \'top\' );

    add_rewrite_rule( \'^cities/(.*)/browse/(.*)/(.*)/(.*)\',
        \'index.php?city_name=$matches[1]&cat_name[]=$matches[2]&cat_name[]=$matches[3]&cat_name[]=$matches[4]\',
        \'top\' );

    add_rewrite_rule( \'^cities/(.*)/browse/(.*)/(.*)\',
        \'index.php?city_name=$matches[1]&cat_name[]=$matches[2]&cat_name[]=$matches[3]\',
        \'top\' );

    add_rewrite_rule( \'^cities/(.*)/browse/(.*)\',
        \'index.php?city_name=$matches[1]&cat_name[]=$matches[2]\',
        \'top\' );

    add_rewrite_rule( \'^cities/?([^/]*)/browse\',
        \'index.php?city_name=$matches[1]\',
        \'top\' );


    flush_rewrite_rules(true);

}, 10, 0);

如何重写(.*)/(.*)/(.*)/(.*) 并获得$matches 作为阵列？的第一个元素$matches 是city\\u name变量值，其余是cat\\u name数组元素。

现在一切都正常了，但我知道代码可以小得多。

add_rewrite_rule(
    \'^cities/(.*)/(browse)?/?(.*)?/?(.*)?/?(.*)?/?(.*)?/?\',
    \'index.php?city_name=$matches[1]&cat_name[]=$matches[3]&cat_name[]=$matches[4]&cat_name[]=$matches[5]\',
    \'top\'
);

add_rewrite_tag("%cat_name.%", "([^&]+)");

add_rewrite_rule(
    \'^cities/([^/]*)/(browse)?/?([^/]*)?/?(^/)?/?([^/]*)?/?([^/]*)?/?\',
    \'index.php?city_name=$matches[1]&cat_name1=$matches[3]&cat_name2=$matches[4]&cat_name3=$matches[5]\',
    \'top\'
);