URL 中的 Wordpress 语言前缀
Wordpress lang prefix in URL
在我的网站上，我有多种语言可供用户选择。这目前适用于简单的 $_GET、重定向和 cookie。但是我想将这个系统升级为使用在我的 url 中添加前缀的语言，以便它们被 Google 索引。由于我已经有一些工作，我宁愿跳过那些笨重的大插件，如 WPML 或 qTranslate（及其后代）。
所以我现在正在尝试做一个插件。在 SO 上，我找到了用户 loushou 的插件工作代码（在这里查看他的回答：）。
现在这个插件所做的是添加重写标签 %lang%，然后在多个过滤器中将其替换为请求的字符串（例如。com/en/post-name/ 设置 lang=en。它还会更新包含前缀的页面（如在导航菜单和其他地方）。
我现在想要完成的是删除默认页面语言的前缀，这样它只会在用户选择任何其他语言时显示。所以 'en' 会从 url 中隐藏，但 'de' 会出现。但在这里我有一个问题。我设法让 WP 不显示默认前缀，但突然页面和作者页面停止工作。
代码如下：
<?php (__FILE__ == $_SERVER['SCRIPT_FILENAME']) ? die(header('Location: /')) : null;
/**
* Plugin Name: Loushou Language URLs
* Plugin URI: http://quadshot.com/
* Description: Adding the ability to have language support in your frontend urls.
* Version: 0.1-beta
* Author: Loushou
* Author URI: http://quadshot.com/
*/
class Clou_rewrite_takeover {
protected static $add_rules = array();
public static function pre_init() {
// debug
add_action('admin_footer-options-permalink.php', array(__CLASS__, 'qsart_rewrite_debug'));
// add rw tag
add_action('init', array(__CLASS__, 'add_directory_rewrite'));
// rw rule adds
add_filter(is_admin() ? 'setup_theme' : 'do_parse_request', array(__CLASS__, 'do_parse_request'), 0);
add_filter('post_rewrite_rules', array(__CLASS__, 'post_rewrite_rules'));
add_filter('date_rewrite_rules', array(__CLASS__, 'date_rewrite_rules'));
add_filter('root_rewrite_rules', array(__CLASS__, 'root_rewrite_rules'));
add_filter('comments_rewrite_rules', array(__CLASS__, 'comments_rewrite_rules'));
add_filter('search_rewrite_rules', array(__CLASS__, 'search_rewrite_rules'));
add_filter('author_rewrite_rules', array(__CLASS__, 'author_rewrite_rules'));
add_filter('page_rewrite_rules', array(__CLASS__, 'page_rewrite_rules'));
add_filter('rewrite_rules_array', array(__CLASS__, 'final_rules_correction'), PHP_INT_MAX, 1);
// query vars
add_filter('query_vars', array(__CLASS__, 'add_lang_query_var'), 10, 1);
add_filter('request', array(__CLASS__, 'default_language'), 9);
add_filter('locale', array(__CLASS__, 'set_language'));
// fix permalinks
$link_filters_needing_rewrite = array(
'post_link',
'post_type_link',
'page_link',
'attachment_link',
'search_link',
'post_type_archive_link',
'year_link',
'month_link',
'day_link',
'feed_link',
'author_link',
'term_link',
'category_feed_link',
'term_feed_link',
'taxonomy_feed_link',
'author_feed_link',
'search_feed_link',
'post_type_archive_feed_link',
);
add_filter('pre_post_link', array(__CLASS__, 'change_permalink_structure'), 10, 3);
foreach ($link_filters_needing_rewrite as $link_filter) {
add_filter($link_filter, array(__CLASS__, 'rewrite_lang_in_permalink'), 11, 3);
}
}
public static function do_parse_request($cur) {
self::get_page_permastruct();
self::get_author_permastruct();
self::correct_extras();
return $cur;
}
public static function get_supported_langs() {
return apply_filters('lou-get-supported-languages', array('en', 'de'));
}
public static function add_directory_rewrite() {
global $wp_rewrite;
$supported_languages = self::get_supported_langs();
// add_permastruct('lang', '%lang%', [ 'ep_mask' => EP_PERMALINK ] );
add_rewrite_tag('%lang%', '('.implode('|', $supported_languages).')?');
}
public static function unleadingslashit($str) {
return ltrim($str, '/');
}
public static function final_rules_correction($rules) {
global $wp_rewrite;
// print("<pre>".print_r($rules, true)."</pre>");
$new_rules = array();
$supported_languages = self::get_supported_langs();
$find = implode('|', $supported_languages);
$find_find = '#(?<!\()('.preg_quote($find, '#').')#';
$preg_node = str_replace('%%%', '(\d+)', preg_quote($wp_rewrite->preg_index('%%%'), '#'));
foreach ($rules as $k => $v) {
if (preg_match($find_find, $k)) {
$nk = preg_replace($find_find, '('.$find.')', $k);
$parts = explode('?', $v);
$index = array_shift($parts);
$pv = implode('?', $parts);
// $pv = $v;
$pv = preg_replace_callback('#'.$preg_node.'#', function ($matches) use ($wp_rewrite) {
return $wp_rewrite->preg_index($matches[1]+1);
}, $pv);
$nv = $index.'?lang='.$wp_rewrite->preg_index(1).(!empty($pv) ? '&'.$pv : '');
$new_rules[$nk] = $nv;
} else {
$new_rules[$k] = $v;
}
}
// print("<pre>".print_r($new_rules, true)."</pre>");
return $new_rules;
}
public static function change_permalink_structure($struct) {
$struct = self::unleadingslashit($struct);
$struct = preg_replace('#^%lang%/?#', '', $struct);
// print("<pre>".print_r($struct, true)."</pre>");
return '/%lang%/'.$struct;
}
public static function extras_rewrite_rules($rules, $struct) {
global $wp_rewrite;
// var_dump($wp_rewrite);
// print("<pre>".print_r($wp_rewrite, true)."</pre>");
// var_dump($rules);
// var_dump($struct);
if(is_array($struct)) {
if ( count( $struct ) == 2 ) {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct[0]), $struct[1] );
} else {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct['struct']), $struct['ep_mask'], $struct['paged'], $struct['feed'], $struct['forcomments'], $struct['walk_dirs'], $struct['endpoints'] );
}
} else {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct) );
}
// print("<pre>".print_r($new_rules, true)."</pre>");
// print("<pre>".print_r($rules, true)."</pre>");
return $new_rules + $rules;
}
public static function post_rewrite_rules($rules) {
global $wp_rewrite;
// hack to add code for extras type urls (usually created by other plugins)
$func = array(__CLASS__, 'extras_rewrite_rules');
foreach ($wp_rewrite->extra_permastructs as $type => $struct) {
// $filter = ($type == 'post_tag' ? 'tag' : $type).'_rewrite_rules';
$filter = $type.'_rewrite_rules';
add_filter($filter, function ($rules) use ($struct, $func) { return call_user_func_array($func, array($rules, $struct)); });
}
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->permalink_structure), EP_PERMALINK ) + $rules;
}
public static function date_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_date_permastruct()), EP_DATE) + $rules;
}
public static function root_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_date_permastruct()), EP_DATE) + $rules;
}
public static function comments_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->root . $wp_rewrite->comments_base), EP_COMMENTS, false, true, true, false) + $rules;
}
public static function search_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_search_permastruct()), EP_SEARCH) + $rules;
}
public static function author_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_author_permastruct()), EP_AUTHORS) + $rules;
}
public static function page_rewrite_rules($rules) {
global $wp_rewrite;
$page_structure = self::get_page_permastruct();
// $page_structure = $wp_rewrite->page_structure;
// $page_structure = $wp_rewrite->get_page_permastruct();
// $page_structure = self::change_permalink_structure($page_structure);
// print("<pre>".print_r($page_structure, true)."</pre>");
return $wp_rewrite->generate_rewrite_rules( $page_structure, EP_PAGES, true, true, false, false ) + $rules;
}
protected static function get_page_permastruct() {
global $wp_rewrite;
if (empty($wp_rewrite->permalink_structure)) {
$wp_rewrite->page_structure = '';
return false;
}
$wp_rewrite->page_structure = self::change_permalink_structure($wp_rewrite->root . '%pagename%');
// print("<pre>".print_r($wp_rewrite, true)."</pre>");
return $wp_rewrite->page_structure;
}
protected static function get_author_permastruct() {
global $wp_rewrite;
if ( empty($wp_rewrite->permalink_structure) ) {
$wp_rewrite->author_structure = '';
return false;
}
$wp_rewrite->author_structure = self::change_permalink_structure($wp_rewrite->front . $wp_rewrite->author_base . '/%author%');
return $wp_rewrite->author_structure;
}
protected static function correct_extras() {
global $wp_rewrite;
foreach ($wp_rewrite->extra_permastructs as $k => $v)
$wp_rewrite->extra_permastructs[$k]['struct'] = self::change_permalink_structure($v['struct']);
}
public static function get_default_post_lang($post = 0) {
// return ( $lang = get_query_var('lang') ) ? $lang : 'en';
return ( $lang = get_query_var('lang') ) ? $lang : null;
}
public static function rewrite_lang_in_permalink($permalink, $post = 0, $leavename = false) {
// find the default post language via a function you have created to
// determine the default language url. this could be based on the current
// language the user has selected on the frontend, or based on the current
// url, or based on the post itself. it is up to you
$lang = self::get_default_post_lang($post);
// echo '<br />';
// echo $lang.' - '.$permalink;
// echo '<br />';
// once you have the default language, it is a simple search and replace
if(!is_null($lang)) {
return str_replace('%lang%', $lang, $permalink);
} else {
return str_replace('%lang%/', '', $permalink);
}
}
public static function add_lang_query_var($vars) {
// tell WP to expect the lang query_var, which you can then later use
$vars[] = 'lang';
// return the new list of query vars, which includes our lang param
return array_unique($vars);
}
public static function default_language($vars) {
if (array_diff( array_keys($vars), array('preview', 'page', 'paged', 'cpage') )) {
// $vars['lang'] = !empty($vars['lang']) ? $vars['lang'] : 'en';
$vars['lang'] = !empty($vars['lang']) ? $vars['lang'] : null;
// print("<pre>".print_r($vars, true)."</pre>");
// if(!empty($vars['lang']))
// $vars['lang'] = $vars['lang'];
}
return $vars;
}
public static function set_language() {
$lang = 'en';
$req_uri = explode('/', $_SERVER['REQUEST_URI']);
// strpos($_SERVER['REQUEST_URI'], '/ee/') === 0
if(in_array('de', $req_uri)) {
$lang = 'de';
}
$locale = self::convert_locale($lang);
return $locale;
}
public static function qsart_rewrite_debug() {
if (isset($_COOKIE['rwdebug']) && $_COOKIE['rwdebug'] == 1) {
global $wp_rewrite;
echo '<pre style="background-color:#ffffff; font-size:10px;">';
print_r($wp_rewrite->rules);
echo '</pre>';
}
}
}
if (defined('ABSPATH') && function_exists('add_action')) {
lou_rewrite_takeover::pre_init();
}
我注意到，如果我注释掉第 70 行，执行规则刷新，然后启用此行，我得到没有前缀的页面开始工作，但是 URL 内部导航和其他地方是未更改（或者更确切地说正在更改为空 lang 字符串）。
现在，如果我不对上述行进行注释并进行刷新，那么如果我尝试访问页面示例。com/page-name/ - 我会看到 404 页面。有趣的是，如果我在第 328 行打印出 $vars var，我可以看到 WP 没有设置“pagename”键，而是设置了“name”，这意味着它试图找到 post 而不是页面，导致 404.
我认为这意味着重写规则有问题。但是检查它们并没有发现明显的错误，至少对我来说是这样。
所以我需要帮助。了解到此代码来自 2013 年，我会毫不犹豫地使用任何其他建议的解决方案。此外，如果有某种小型、非常基本的插件可以执行此特定功能，我也会使用它。也可能有一种方法可以绕过使用 .htaccess，但我认为 get_query_vars 会停止工作。
我设法通过重写 final_rules_correction() 方法并禁用 post/date/etc rewrite_rules.
的过滤器来解决我的大部分问题
这样做是重写所有生成的规则并向它们添加一个 lang 前缀正则表达式，并向最终的 link 添加一个 lang var。如果 URL 请求 URL 不包括语言变量，它还允许有一个空的语言变量。
$prefixes = self::get_supported_langs();
$prefix_regexp = '(?:(' . implode( '|', $prefixes ) . ')/)?';
$new_rewrite_rules = array();
$match_pattern = '/$matches\[(\d)\]/si';
foreach ( $rules as $rewrite_rule => $match ) {
$parts = explode('?', $match);
$index = array_shift($parts);
$pv = implode('?', $parts);
$pv = preg_replace_callback($match_pattern, function ($m) {
return sprintf('$matches[%d]', $m[1] + 1);
}, $pv);
$nv = $index.'?lang='.$wp_rewrite->preg_index(1).(!empty($pv) ? '&'.$pv : '');
$new_rewrite_rules[$prefix_regexp . $rewrite_rule] = $nv;
}
我现在遇到的问题是 URLs 在 AJAX 调用中不包含 lang 前缀。考虑到我可能必须在 AJAX 调用中传递 lang 前缀，然后在 AJAX 调用期间为我需要检索的帖子和其他对象重写 permalinks...
注意： 这不会在 home_url 和类似函数中重写 links。
在我的网站上，我有多种语言可供用户选择。这目前适用于简单的 $_GET、重定向和 cookie。但是我想将这个系统升级为使用在我的 url 中添加前缀的语言，以便它们被 Google 索引。由于我已经有一些工作，我宁愿跳过那些笨重的大插件，如 WPML 或 qTranslate（及其后代）。
所以我现在正在尝试做一个插件。在 SO 上，我找到了用户 loushou 的插件工作代码（在这里查看他的回答：）。
现在这个插件所做的是添加重写标签 %lang%，然后在多个过滤器中将其替换为请求的字符串（例如。com/en/post-name/ 设置 lang=en。它还会更新包含前缀的页面（如在导航菜单和其他地方）。
我现在想要完成的是删除默认页面语言的前缀，这样它只会在用户选择任何其他语言时显示。所以 'en' 会从 url 中隐藏，但 'de' 会出现。但在这里我有一个问题。我设法让 WP 不显示默认前缀，但突然页面和作者页面停止工作。
代码如下：
<?php (__FILE__ == $_SERVER['SCRIPT_FILENAME']) ? die(header('Location: /')) : null;
/**
* Plugin Name: Loushou Language URLs
* Plugin URI: http://quadshot.com/
* Description: Adding the ability to have language support in your frontend urls.
* Version: 0.1-beta
* Author: Loushou
* Author URI: http://quadshot.com/
*/
class Clou_rewrite_takeover {
protected static $add_rules = array();
public static function pre_init() {
// debug
add_action('admin_footer-options-permalink.php', array(__CLASS__, 'qsart_rewrite_debug'));
// add rw tag
add_action('init', array(__CLASS__, 'add_directory_rewrite'));
// rw rule adds
add_filter(is_admin() ? 'setup_theme' : 'do_parse_request', array(__CLASS__, 'do_parse_request'), 0);
add_filter('post_rewrite_rules', array(__CLASS__, 'post_rewrite_rules'));
add_filter('date_rewrite_rules', array(__CLASS__, 'date_rewrite_rules'));
add_filter('root_rewrite_rules', array(__CLASS__, 'root_rewrite_rules'));
add_filter('comments_rewrite_rules', array(__CLASS__, 'comments_rewrite_rules'));
add_filter('search_rewrite_rules', array(__CLASS__, 'search_rewrite_rules'));
add_filter('author_rewrite_rules', array(__CLASS__, 'author_rewrite_rules'));
add_filter('page_rewrite_rules', array(__CLASS__, 'page_rewrite_rules'));
add_filter('rewrite_rules_array', array(__CLASS__, 'final_rules_correction'), PHP_INT_MAX, 1);
// query vars
add_filter('query_vars', array(__CLASS__, 'add_lang_query_var'), 10, 1);
add_filter('request', array(__CLASS__, 'default_language'), 9);
add_filter('locale', array(__CLASS__, 'set_language'));
// fix permalinks
$link_filters_needing_rewrite = array(
'post_link',
'post_type_link',
'page_link',
'attachment_link',
'search_link',
'post_type_archive_link',
'year_link',
'month_link',
'day_link',
'feed_link',
'author_link',
'term_link',
'category_feed_link',
'term_feed_link',
'taxonomy_feed_link',
'author_feed_link',
'search_feed_link',
'post_type_archive_feed_link',
);
add_filter('pre_post_link', array(__CLASS__, 'change_permalink_structure'), 10, 3);
foreach ($link_filters_needing_rewrite as $link_filter) {
add_filter($link_filter, array(__CLASS__, 'rewrite_lang_in_permalink'), 11, 3);
}
}
public static function do_parse_request($cur) {
self::get_page_permastruct();
self::get_author_permastruct();
self::correct_extras();
return $cur;
}
public static function get_supported_langs() {
return apply_filters('lou-get-supported-languages', array('en', 'de'));
}
public static function add_directory_rewrite() {
global $wp_rewrite;
$supported_languages = self::get_supported_langs();
// add_permastruct('lang', '%lang%', [ 'ep_mask' => EP_PERMALINK ] );
add_rewrite_tag('%lang%', '('.implode('|', $supported_languages).')?');
}
public static function unleadingslashit($str) {
return ltrim($str, '/');
}
public static function final_rules_correction($rules) {
global $wp_rewrite;
// print("<pre>".print_r($rules, true)."</pre>");
$new_rules = array();
$supported_languages = self::get_supported_langs();
$find = implode('|', $supported_languages);
$find_find = '#(?<!\()('.preg_quote($find, '#').')#';
$preg_node = str_replace('%%%', '(\d+)', preg_quote($wp_rewrite->preg_index('%%%'), '#'));
foreach ($rules as $k => $v) {
if (preg_match($find_find, $k)) {
$nk = preg_replace($find_find, '('.$find.')', $k);
$parts = explode('?', $v);
$index = array_shift($parts);
$pv = implode('?', $parts);
// $pv = $v;
$pv = preg_replace_callback('#'.$preg_node.'#', function ($matches) use ($wp_rewrite) {
return $wp_rewrite->preg_index($matches[1]+1);
}, $pv);
$nv = $index.'?lang='.$wp_rewrite->preg_index(1).(!empty($pv) ? '&'.$pv : '');
$new_rules[$nk] = $nv;
} else {
$new_rules[$k] = $v;
}
}
// print("<pre>".print_r($new_rules, true)."</pre>");
return $new_rules;
}
public static function change_permalink_structure($struct) {
$struct = self::unleadingslashit($struct);
$struct = preg_replace('#^%lang%/?#', '', $struct);
// print("<pre>".print_r($struct, true)."</pre>");
return '/%lang%/'.$struct;
}
public static function extras_rewrite_rules($rules, $struct) {
global $wp_rewrite;
// var_dump($wp_rewrite);
// print("<pre>".print_r($wp_rewrite, true)."</pre>");
// var_dump($rules);
// var_dump($struct);
if(is_array($struct)) {
if ( count( $struct ) == 2 ) {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct[0]), $struct[1] );
} else {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct['struct']), $struct['ep_mask'], $struct['paged'], $struct['feed'], $struct['forcomments'], $struct['walk_dirs'], $struct['endpoints'] );
}
} else {
$new_rules = $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($struct) );
}
// print("<pre>".print_r($new_rules, true)."</pre>");
// print("<pre>".print_r($rules, true)."</pre>");
return $new_rules + $rules;
}
public static function post_rewrite_rules($rules) {
global $wp_rewrite;
// hack to add code for extras type urls (usually created by other plugins)
$func = array(__CLASS__, 'extras_rewrite_rules');
foreach ($wp_rewrite->extra_permastructs as $type => $struct) {
// $filter = ($type == 'post_tag' ? 'tag' : $type).'_rewrite_rules';
$filter = $type.'_rewrite_rules';
add_filter($filter, function ($rules) use ($struct, $func) { return call_user_func_array($func, array($rules, $struct)); });
}
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->permalink_structure), EP_PERMALINK ) + $rules;
}
public static function date_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_date_permastruct()), EP_DATE) + $rules;
}
public static function root_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_date_permastruct()), EP_DATE) + $rules;
}
public static function comments_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->root . $wp_rewrite->comments_base), EP_COMMENTS, false, true, true, false) + $rules;
}
public static function search_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_search_permastruct()), EP_SEARCH) + $rules;
}
public static function author_rewrite_rules($rules) {
global $wp_rewrite;
return $wp_rewrite->generate_rewrite_rules( self::change_permalink_structure($wp_rewrite->get_author_permastruct()), EP_AUTHORS) + $rules;
}
public static function page_rewrite_rules($rules) {
global $wp_rewrite;
$page_structure = self::get_page_permastruct();
// $page_structure = $wp_rewrite->page_structure;
// $page_structure = $wp_rewrite->get_page_permastruct();
// $page_structure = self::change_permalink_structure($page_structure);
// print("<pre>".print_r($page_structure, true)."</pre>");
return $wp_rewrite->generate_rewrite_rules( $page_structure, EP_PAGES, true, true, false, false ) + $rules;
}
protected static function get_page_permastruct() {
global $wp_rewrite;
if (empty($wp_rewrite->permalink_structure)) {
$wp_rewrite->page_structure = '';
return false;
}
$wp_rewrite->page_structure = self::change_permalink_structure($wp_rewrite->root . '%pagename%');
// print("<pre>".print_r($wp_rewrite, true)."</pre>");
return $wp_rewrite->page_structure;
}
protected static function get_author_permastruct() {
global $wp_rewrite;
if ( empty($wp_rewrite->permalink_structure) ) {
$wp_rewrite->author_structure = '';
return false;
}
$wp_rewrite->author_structure = self::change_permalink_structure($wp_rewrite->front . $wp_rewrite->author_base . '/%author%');
return $wp_rewrite->author_structure;
}
protected static function correct_extras() {
global $wp_rewrite;
foreach ($wp_rewrite->extra_permastructs as $k => $v)
$wp_rewrite->extra_permastructs[$k]['struct'] = self::change_permalink_structure($v['struct']);
}
public static function get_default_post_lang($post = 0) {
// return ( $lang = get_query_var('lang') ) ? $lang : 'en';
return ( $lang = get_query_var('lang') ) ? $lang : null;
}
public static function rewrite_lang_in_permalink($permalink, $post = 0, $leavename = false) {
// find the default post language via a function you have created to
// determine the default language url. this could be based on the current
// language the user has selected on the frontend, or based on the current
// url, or based on the post itself. it is up to you
$lang = self::get_default_post_lang($post);
// echo '<br />';
// echo $lang.' - '.$permalink;
// echo '<br />';
// once you have the default language, it is a simple search and replace
if(!is_null($lang)) {
return str_replace('%lang%', $lang, $permalink);
} else {
return str_replace('%lang%/', '', $permalink);
}
}
public static function add_lang_query_var($vars) {
// tell WP to expect the lang query_var, which you can then later use
$vars[] = 'lang';
// return the new list of query vars, which includes our lang param
return array_unique($vars);
}
public static function default_language($vars) {
if (array_diff( array_keys($vars), array('preview', 'page', 'paged', 'cpage') )) {
// $vars['lang'] = !empty($vars['lang']) ? $vars['lang'] : 'en';
$vars['lang'] = !empty($vars['lang']) ? $vars['lang'] : null;
// print("<pre>".print_r($vars, true)."</pre>");
// if(!empty($vars['lang']))
// $vars['lang'] = $vars['lang'];
}
return $vars;
}
public static function set_language() {
$lang = 'en';
$req_uri = explode('/', $_SERVER['REQUEST_URI']);
// strpos($_SERVER['REQUEST_URI'], '/ee/') === 0
if(in_array('de', $req_uri)) {
$lang = 'de';
}
$locale = self::convert_locale($lang);
return $locale;
}
public static function qsart_rewrite_debug() {
if (isset($_COOKIE['rwdebug']) && $_COOKIE['rwdebug'] == 1) {
global $wp_rewrite;
echo '<pre style="background-color:#ffffff; font-size:10px;">';
print_r($wp_rewrite->rules);
echo '</pre>';
}
}
}
if (defined('ABSPATH') && function_exists('add_action')) {
lou_rewrite_takeover::pre_init();
}
我注意到，如果我注释掉第 70 行，执行规则刷新，然后启用此行，我得到没有前缀的页面开始工作，但是 URL 内部导航和其他地方是未更改（或者更确切地说正在更改为空 lang 字符串）。
现在，如果我不对上述行进行注释并进行刷新，那么如果我尝试访问页面示例。com/page-name/ - 我会看到 404 页面。有趣的是，如果我在第 328 行打印出 $vars var，我可以看到 WP 没有设置“pagename”键，而是设置了“name”，这意味着它试图找到 post 而不是页面，导致 404.
我认为这意味着重写规则有问题。但是检查它们并没有发现明显的错误，至少对我来说是这样。
所以我需要帮助。了解到此代码来自 2013 年，我会毫不犹豫地使用任何其他建议的解决方案。此外，如果有某种小型、非常基本的插件可以执行此特定功能，我也会使用它。也可能有一种方法可以绕过使用 .htaccess，但我认为 get_query_vars 会停止工作。
我设法通过重写 final_rules_correction() 方法并禁用 post/date/etc rewrite_rules.
的过滤器来解决我的大部分问题这样做是重写所有生成的规则并向它们添加一个 lang 前缀正则表达式，并向最终的 link 添加一个 lang var。如果 URL 请求 URL 不包括语言变量，它还允许有一个空的语言变量。
$prefixes = self::get_supported_langs();
$prefix_regexp = '(?:(' . implode( '|', $prefixes ) . ')/)?';
$new_rewrite_rules = array();
$match_pattern = '/$matches\[(\d)\]/si';
foreach ( $rules as $rewrite_rule => $match ) {
$parts = explode('?', $match);
$index = array_shift($parts);
$pv = implode('?', $parts);
$pv = preg_replace_callback($match_pattern, function ($m) {
return sprintf('$matches[%d]', $m[1] + 1);
}, $pv);
$nv = $index.'?lang='.$wp_rewrite->preg_index(1).(!empty($pv) ? '&'.$pv : '');
$new_rewrite_rules[$prefix_regexp . $rewrite_rule] = $nv;
}
我现在遇到的问题是 URLs 在 AJAX 调用中不包含 lang 前缀。考虑到我可能必须在 AJAX 调用中传递 lang 前缀，然后在 AJAX 调用期间为我需要检索的帖子和其他对象重写 permalinks...
注意： 这不会在 home_url 和类似函数中重写 links。