我们有一个 WordPress MU 子目录网络设置:
我们希望为每个网页添加 hreflang 标签,并排除 locations
自定义帖子类型。
从这个问题中,我调整了子主题中的代码
functions.php
至:
function add_hreflang_attribute() { $site_url = network_site_url(); // base URL $alt_langs = array( '', 'au', 'uk' ); // two-letter language code $page_path = substr(get_permalink(), strlen(home_url('/'))); // path of page after base URL if (!( is_singular( 'locations' ) ) ) { // loop through the alternative languages, and get the appropriate hreflang tag for each that exists foreach ($alt_langs as $lang) { $updated_url_lang_path = $site_url . $lang . '/' . $page_path; $url_headers = @get_headers($updated_url_lang_path); if($url_headers && strpos( $url_headers[0], '200')) { if ($lang == 'uk') { echo '<link rel="alternate" href="' . $updated_url_lang_path . '" hreflang="en-gb" />'. PHP_EOL; } elseif ($lang == '') { } else { echo '<link rel="alternate" href="' . $updated_url_lang_path . '" hreflang="en-' . $lang . '" />'. PHP_EOL; } } } // set primary as x-default echo '<link rel="alternate" href="' . $site_url . $page_path . '" hreflang="x-default" />'; } }
此代码适用于主网站的主页和示例页面:www.example.com/features/
;
<link rel="alternate" href="https://www.example.com/au/features/" hreflang="en-au" /> <link rel="alternate" href="https://www.example.com/uk/features/" hreflang="en-gb" /> <link rel="alternate" href="https://www.example.com/features/" hreflang="x-default" />
它适用于:
https://www.example.com/au/features/
,但在 www.example.com/uk/
上它只产生:
<link rel="alternate" href="https://www.example.com/au/" hreflang="en-au" /> <link rel="alternate" href="https://www.example.com/" hreflang="x-default" />
缺少:
<link rel="alternate" href="https://www.example.com/uk/" hreflang="en-gb" />
功能页面是一个简单的 WordPress 页面。
感谢帮助。
编辑
如果我添加 if ($lang == 'uk') {print_r(get_headers($updated_url_lang_path));}
,我看到:
Array ( [0] => HTTP/1.1 200 OK [1] => Server: nginx [2] => Date: Wed, 11 May 2022 22:08:04 GMT [3] => Content-Type: text/html; charset=UTF-8 [4] => Content-Length: 88422 [5] => Connection: close [6] => Vary: Accept-Encoding [7] => Vary: Accept-Encoding [8] => Accept-CH: Sec-CH-UA-Mobile [9] => Link: <https://www.example.com/uk/wp-json/>; rel="https://api.w.org/" [10] => Link: <https://www.example.com/uk/wp-json/wp/v2/pages/10>; rel="alternate"; type="application/json" [11] => Link: <https://www.example.com/uk/>; rel=shortlink [12] => X-Powered-By: WP Engine [13] => X-Cacheable: SHORT [14] => Vary: Accept-Encoding,Cookie [15] => Cache-Control: max-age=600, must-revalidate [16] => X-Cache: HIT: 8 [17] => X-Cache-Group: normal [18] => Accept-Ranges: bytes [19] => X-Orig-Cache-Control: no-cache )
并正确添加以下内容:
<link rel="alternate" href="https://www.example.com/uk/" hreflang="en-gb" />
但是,我只有在登录 WordPress 时才能看到此内容。
在隐身窗口中,在 https://www.example.com/uk/
我看到(仅):
<link rel="alternate" href="https://www.example.com/" hreflang="x-default" />
嘿史蒂夫,使用这个代码,它会很好用!!!
我将代码更改为:
效果很好。