我将在下面发布整个插件代码。。这就是我的问题所在。我正在使用导入自定义帖子类型中的自定义字段的值来构建URL。在编辑帖子页面上，它显示了我希望的永久链接。。

地点com/real-estate/%postname%-%field\\u City%-%field\\u State%-%field\\u邮编%/

像

地点com/real-estate/51 main街-port-jefferson-ny-11777/

然而，permalink是404。。虽然如果我删除城市名称中的连字符并搜索。。

地点com/real-estate/51 main街-portjefferson-ny-11777/

比url更有效。。

因此，我认为插件缺少一些关于带空格的字段的内容。。奇怪的是，它在post editor的permalink字段中正确显示。。任何帮助都将不胜感激。。

    <?php
/*
Plugin Name: Custom Fields Permalink 2
Plugin URI: http://athlan.pl/wordpress-custom-fields-permalink-plugin
Description: Plugin allows to use post\'s custom fields values in permalink structure by adding %field_fieldname%, for posts, pages and custom post types.
Author: Piotr Pelczar
Version: 2.0
Author URI: http://athlan.pl/
*/

class CustomFieldsPermalink {

    const PARAM_CUSTOMFIELD_KEY = \'custom_field_key\';
    const PARAM_CUSTOMFIELD_VALUE = \'custom_field_value\';

    public static $checkCustomFieldValue = false;

    public static function linkPost($permalink, $post, $leavename) {
        return self::linkRewriteFields($permalink, $post);
    }

    public static function linkPostType($permalink, $post, $leavename, $sample) {
        return self::linkRewriteFields($permalink, $post);
    }

    protected static function linkRewriteFields($permalink, $post) {
        $replaceCallback = function($matches) use (&$post) {
            return CustomFieldsPermalink::linkRewriteFieldsExtract($post, $matches[2]);
        };

        return preg_replace_callback(\'#(%field_(.*?)%)#\', $replaceCallback, $permalink);
    }

    public static function linkRewriteFieldsExtract($post, $fieldName) {
        $postMeta = get_post_meta($post->ID);

        if(!isset($postMeta[$fieldName]))
            return \'\';

        $value = implode(\'\', $postMeta[$fieldName]);

        $value = sanitize_title($value);

        return $value;
    }

    public static function registerExtraQueryVars($value) {
        array_push($value, self::PARAM_CUSTOMFIELD_KEY, self::PARAM_CUSTOMFIELD_VALUE);
        return $value;
    }

    public static function processRequest($value) {
        // additional parameters added to Wordpress
        // Main Loop query
        if(array_key_exists(self::PARAM_CUSTOMFIELD_KEY, $value)) {
            $value[\'meta_key\'] = $value[self::PARAM_CUSTOMFIELD_KEY];

            // remove temporary injected parameter
            unset($value[self::PARAM_CUSTOMFIELD_KEY]);

            // do not check field\'s value for this moment
            if(true === self::$checkCustomFieldValue) {
                if(array_key_exists(self::PARAM_CUSTOMFIELD_VALUE, $value)) {
                    $value[\'meta_value\'] = $value[self::PARAM_CUSTOMFIELD_VALUE];

                    // remove temporary injected parameter
                    unset($value[self::PARAM_CUSTOMFIELD_VALUE]);
                }
            }
        }

        return $value;
    }

    public static function rewriteRulesArrayFilter($rules) {
        $keys = array_keys($rules);
        $tmp = $rules;
        $rules = array();

        for($i = 0, $j = sizeof($keys); $i < $j; ++$i) {
            $key = $keys[$i];

            if (preg_match(\'/%field_([^%]*?)%/\', $key)) {
                $keyNew = preg_replace(
                    \'/%field_([^%]*?)%/\',
                    \'([^/]+)\',
                    // you can simply add next group to the url, because WordPress
                    // detect them automatically and add next $matches indiceis
                    $key
                );
                $rules[$keyNew] = preg_replace(
                    \'/%field_([^%]*?)%/\',
                    sprintf(\'%s=$1&%s=\', self::PARAM_CUSTOMFIELD_KEY, self::PARAM_CUSTOMFIELD_VALUE),
                    // here on the end will be pasted $matches[$i] from $keyNew, so we can
                    // grab it it the future in self::PARAM_CUSTOMFIELD_VALUE parameter
                    $tmp[$key]
                );
            }
            else {
                $rules[$key] = $tmp[$key];
            }
        }

        return $rules;
    }
}

add_filter(\'pre_post_link\', array(\'CustomFieldsPermalink\', \'linkPost\'), 100, 3);
add_filter(\'post_type_link\', array(\'CustomFieldsPermalink\', \'linkPostType\'), 100, 4);
add_filter(\'rewrite_rules_array\', array(\'CustomFieldsPermalink\', \'rewriteRulesArrayFilter\'));
add_filter(\'query_vars\', array(\'CustomFieldsPermalink\', \'registerExtraQueryVars\'), 10, 1);
add_filter(\'request\', array(\'CustomFieldsPermalink\', \'processRequest\'), 10, 1);

我想我找到了解决办法。。但是我认为在permalink设置中为连字符（%2D）使用十六进制代码是一个解决方案。。但事实证明，这只适用于chrome浏览器。。不在IE或Edge中。。因此，我仍然没有解决方案，不幸的是：(