以下两个功能应为您指明正确的方向：

function wpse49393_query_vars($query_vars)
{
    $query_vars[] = \'myvar\';
    return $query_vars;
}
add_filter(\'query_vars\', \'wpse49393_query_vars\');

function wpse49393_rewrite_rules_array($rewrite_rules)
{
    $rewrite_rules[\'path/to/page/([^/]+)/?$\'] = \'index.php?pagename=path/to/page&myvar=$matches[1]\';
    return $rewrite_rules;
}
add_filter(\'rewrite_rules_array\', \'wpse49393_rewrite_rules_array\');

你可以做你自己的定制permalink结构，你看过这里吗-http://codex.wordpress.org/Using_Permalinks?

感谢这篇文章的提醒：http://zagar.biz/2011/wordpress-creating-custom-permalinks/

我的最终代码是这样的：

In the theme\'s functions.php file

add_filter(\'rewrite_rules_array\',\'mycode_add_rewrite_rules\');

// Add all rewrite rules here
// ** Remember to Flush Rewrite rules when adding new rules.
// this is done by visiting the Settings > Permalinks in WP admin.

function mycode_add_rewrite_rules($rules){
    $newrules = array();
    $newrules[\'tal-dia-como-hoy/([^/]+)/([^/]+)/?\'] = \'index.php?pagename=tal-dia-como-hoy&dia=$matches[1]&mes=$matches[2]\';
    return $newrules + $rules;
}

add_filter(\'query_vars\',\'mycode_add_rewrite_query_vars\');

// Add all slugs so that WP recognizes it
function mycode_add_rewrite_query_vars($vars){
    array_push($vars, \'dia\');
    array_push($vars, \'mes\');
    return $vars;
}

global $wp;

// connect to your external DB, etc...

if($wp->query_vars["dia"]){

echo "Permalinks are working";
    // load up your external data here and display single resource
        // if the beard slug doesn\'t exist, redirect to 404
} else {
    // load up whatever you want to display for the index version.
echo "Nothing shows up but it\'s working anyway";
}

这是我将用于此代码的页面：http://planeta-beisbol.com/tal-dia-como-hoy/19/04/

“04年19日”部分的意思是：4月19日

我希望这段代码对每个人都有用