SOLUTION

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I\'ve gone with Update 3 and have got it working. What I had misunderstood, was that I believed that a rewrite rule would change designers/?designer=some-designer&bid=9 to /designers/some-designer. But it is of course the other way around.

<我一直在做一些研究，但我不太明白如何使用add_rewrite_rule().

This post 非常接近我所需要的，但我真的需要那么多代码吗？

我当前的链接是：
http://www.norwegianfashion.no/designers/?designer=Batlak-og-Selvig&bid=9<我想要的是这个http://www.norwegianfashion.no/designers/Batlak-og-Selvig/

如何使用add_rewrite_rule()? Update 1

I found this 这更能说明问题。但它不起作用：

function add_rewrite_rules( $wp_rewrite ) 
{
    $new_rules = array(
        \'(\'.$template_page_name.\')/designers/(.*?)/?([0-9]{1,})/?$\' => \'designers.php?designer=\'.
        $wp_rewrite->preg_index(1).\'&bid=\'.
        $wp_rewrite->preg_index(2)
    );
       // Always add your rules to the top, to make sure your rules have priority
    $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
add_action(\'generate_rewrite_rules\', \'add_rewrite_rules\');

function query_vars($public_query_vars) {

    $public_query_vars[] = "designer";
    $public_query_vars[] = "bid";
    return $public_query_vars;
}
add_filter(\'query_vars\', \'query_vars\')

Update 2

这是我尝试过的另一个解决方案Jan Fabry suggesten 在另一个线程中。我把它放在我的函数中。php，但它没有任何效果。

add_action(\'generate_rewrite_rules\', \'add_rewrite_rules\');
add_filter(\'query_vars\', \'query_vars\');

/* Custom re-write rules for desigenrs
------------------------------------------------------------------------------*/
function add_rewrite_rules( $wp_rewrite ) 
{
    add_rewrite_rule(\'^designers/([^/]*)/([^/]*)$ /designers/?designer=$1&bid=$2 [L]\', \'top\');
    flush_rewrite_rules(false);
}


function query_vars($public_query_vars) {

    $public_query_vars[] = "designer";
    $public_query_vars[] = "bid";
    return $public_query_vars;
}

Update 3
Ifound a few examples here 也但这也行不通：(

add_filter(\'rewrite_rules_array\',\'wp_insertMyRewriteRules\');
add_filter(\'query_vars\',\'wp_insertMyRewriteQueryVars\');
add_filter(\'init\',\'flushRules\');  

// Remember to flush_rules() when adding rules
function flushRules(){
    global $wp_rewrite;
    $wp_rewrite->flush_rules();
}

// Adding a new rule
function wp_insertMyRewriteRules($rules)
{
    $newrules = array();
    $newrules[\'(designers)/(\\d*)$\'] = \'index.php?pagename=designers&designer=$matches[1]\';
    return $newrules + $rules;
}

// Adding the bid var so that WP recognizes it
function wp_insertMyRewriteQueryVars($vars)
{
    array_push($vars, \'designer\');
    return $vars;
}

Update 4我也尝试过这个解决方案，但仍然没有成功。

add_filter(\'search_rewrite_rules\', \'designers_createRewriteRules\');

function designers_createRewriteRules($rewrite) {
global $wp_rewrite;

// add rewrite tokens
$designer_token = \'%designers%\';
$wp_rewrite->add_rewrite_tag($designer_token, \'(.+)\', \'designers=\');

$bid_token = \'%bid%\';
$wp_rewrite->add_rewrite_tag($bid_token, \'(.+)\', \'bid=\');

$keywords_structure = $wp_rewrite->root . "designers/$designer_token/$bid_token";
$keywords_rewrite = $wp_rewrite->generate_rewrite_rules($keywords_structure);

return ( $rewrite + $keywords_rewrite );

}

Update 5
似乎没有添加我的重写规则。制定新规则后执行以下操作：print_r($wp_rewrite), 不包括我的新重写规则。

Update 6<我测试了简的溶液。但URL不变：(

/* Initiation script for NF template
------------------------------------------------------------------------------*/   
add_action(\'after_setup_theme\',\'norwegianfashion_setup\');

if ( ! function_exists( \'norwegianfashion_setup\' ) ):

  function norwegianfashion_setup() { 
    /* Here I do a lot of stuff */

    // SEO friendly URL for desigenrs
    add_action( \'init\', \'wpa5413_init\' );
    add_filter( \'query_vars\', \'wpa5413_query_vars\' );
  }

endif;


/* Custom re-write rules for desigenrs
------------------------------------------------------------------------------*/
function wpa5413_init()
{
    // Remember to flush the rules once manually after you added this code!
    add_rewrite_rule(
        \'designers/([^/]+)/?\',
        \'index.php?pagename=designers&designer=$matches[1]\',
        \'top\' );
}

function wpa5413_query_vars( $query_vars )
{
    $query_vars[] = \'designer\';
    return $query_vars;
}

我会的really 如果有人能帮我解决这个问题，我将不胜感激。