请求解析在中处理WP::parse_request(). 在那之后，有一个动作钩parse_request 这将为您提供wp 对象

我们假设http://www.example.com/my-custom-post-type/this-is-a-cool-article 是你的永久链接和http://www.example.com/mon-type-de-poste-personnalise/cest-un-article-sympa 最后是404。因此，首先要检查回调，如果wp 对象处于错误/404状态：

if ( ! empty( $wp->query_vars[ \'error\' ] && 404 == $wp->query_vars[ \'error\' ] ) {
    //…
}

编辑：我犯了一个错误：不确定$wp 别名URL上的状态始终为404。这在很大程度上取决于系统上的重写规则。因此，您需要直接检查别名cpt slug。

现在，您必须自己解析请求并查找元值以找到相应的帖子：

if ( ! empty( $wp->query_vars[ \'error\' ] && \'404\' == $wp->query_vars[ \'error\' ] ) {

    //look up for your post, this var should looks like 
    // \'mon-type-de-poste-personnalise/cest-un-article-sympa\' in your case:
    $wp->request;
    //e.g.
    $parts = explode( \'/\', $wp->request );
    // your language slug
    $slug = ( isset( $parts[ 1 ] ) ) ? $parts[ 1 ] : \'\';
    // do your query with your meta value $slug here

}

接下来，要设置$wp->query_vars 当我们面对最初的请求时，他们会是这样的：

if ( ! empty( $wp->query_vars[ \'error\' ] && \'404\' == $wp->query_vars[ \'error\' ] ) {

    //look up for your post, this var should looks like 
    // \'mon-type-de-poste-personnalise/cest-un-article-sympa\' in your case:
    $wp->request;
    //e.g.
    $parts = explode( \'/\', $wp->request );
    // your i18n post slug
    $slug = ( isset( $parts[ 1 ] ) ) ? $parts[ 1 ] : \'\';
    // do your query with your meta value $slug here
    // and setup the WP_Post object for the matching post
    $matching_post; // WP_Post

    // if you don\'t find any post, return here!

    // unset the error flag
    unset( $wp->query_vars[ \'error\' ] );

    // your cpt slug
    $cpt_slug = \'my-custom-post-type\';

    $wp->query_vars[ $cpt_slug ] = $matching_post->post_name;
    $wp->query_vars[ \'post_type\' ] = $cpt_slug;
    $wp->query_vars[ \'name\' ] = $matching_post->post_name;
}

您必须做的最后一件事是通过删除函数来防止WordPress自动重定向到规范URLredirect_canonical 从template_redirect 措施：

if ( ! empty( $wp->query_vars[ \'error\' ] && \'404\' == $wp->query_vars[ \'error\' ] ) {

    //look up for your post, this var should looks like 
    // \'mon-type-de-poste-personnalise/cest-un-article-sympa\' in your case:
    $wp->request;
    //e.g.
    $parts = explode( \'/\', $wp->request );
    // your language slug
    $slug = ( isset( $parts[ 1 ] ) ) ? $parts[ 1 ] : \'\';
    // do your query with your meta value $slug here
    // and setup the WP_Post object for the matching post
    $matching_post; // WP_Post

    # unset the error flag
    unset( $wp->query_vars[ \'error\' ] );

    # your cpt slug
    $cpt_slug = \'my-custom-post-type\';

    $wp->query_vars[ $cpt_slug ] = $matching_post->post_name;
    $wp->query_vars[ \'post_type\' ] = $cpt_slug;
    $wp->query_vars[ \'name\' ] = $matching_post->post_name;

    # don\'t redirect to the canonical url
    remove_action( \'template_redirect\', \'redirect_canonical\' );
}

将最后一个代码块放入函数中，并将其应用于parse_request 措施：

add_action( \'parse_request\', \'wpse_126309_parse_request\' );

/**
 * @wp-hook parse_request
 * @param WP $wp
 * @return void
 */
function wpse_126309_parse_request( $wp ) {
    // the code goes here
}

您应该测试这个示例的副作用（这只是概念验证）。