Php Wordpress add_rewrite_tag()、add_rewrite_rule()和post_link()
我正在努力做到以下几点: 重写我的WordPress安装的URL结构,使其中有一个语言字段。例如 然后我想从/lang/获取输入,并使用它来显示适当的内容。例如,如果lang是“en”,我将使用英语自定义字段,并用英语显示主题 以下是我到目前为止的情况:Php Wordpress add_rewrite_tag()、add_rewrite_rule()和post_link(),php,wordpress,Php,Wordpress,我正在努力做到以下几点: 重写我的WordPress安装的URL结构,使其中有一个语言字段。例如 然后我想从/lang/获取输入,并使用它来显示适当的内容。例如,如果lang是“en”,我将使用英语自定义字段,并用英语显示主题 以下是我到目前为止的情况: <?php function add_directory_rewrite() { global $wp_rewrite; add_rewrite_tag('%lang%', '(.+)'); add_rewrit
<?php
function add_directory_rewrite() {
global $wp_rewrite;
add_rewrite_tag('%lang%', '(.+)');
add_rewrite_rule('^/(.+)/', 'index.php?p=$matches[1]&lang=$matches[2]', 'top');
add_permastruct('lang', '%lang%');
}
add_action( 'init', 'add_directory_rewrite' );
?>
这在获取语言方面是有效的,但我现在面临的问题是,_permalink()有“/%lang%/”其中/en/应该是或/fr/或/de/或任何语言。要添加更多细节,我的permalink结构是/%lang%/%category%/%postname%/,假设我有一个名为food的类别和一个标题为chicken的帖子,permalink将生成
知道我做错了什么吗?干杯。您还需要添加一个函数,该函数将获取包含错误“/%lang%/”段的永久链接,并将其替换为帖子的相应默认语言。通常,您可以通过
'pre\u post\u link'
过滤器或'post\u link'
过滤器来执行此操作。如果您使用前者,您将从头开始创建永久链接(完全自定义URL,不使用core WP提供的任何内容)。如果使用了后者,那么您可以在WP发挥神奇作用之后,但在网站上使用之前过滤permalink。以下是一个例子:
function lou_rewrite_lang_in_permalink($permalink, $post, $leavename) {
// 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
$default_post_language = get_default_post_lang($post);
// once you have the default language, it is a simple search and replace
return str_replace('%lang%', $lang, $permalink);
}
add_filter('post_link', 'lou_rewrite_lang_in_permalink', 11, 3);
你别提,我会的。有了你原来的独奏功能,如果它是独立的,你会很难过。原因是,尽管您已经告诉重写器存在一个新的url段,但您没有告诉WordPress将其作为url参数。因此,即使您有一些花哨的代码来重写url并告诉WordPress花哨的lang param,WordPress也不知道应该查找它,因此忽略了它。您需要添加类似的内容来纠正:
function lou_add_lang_query_var($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);
}
add_filter('query_vars', 'lou_add_lang_query_var', 10, 1);
这将告诉WP()
类它需要接受'lang'
,而不是跳过它。然后,您可以执行类似的操作,以确定当前页面以其语言发送:
function lou_somefunction() {
// do stuff
...
// access the $wp object
global $wp;
// determine the language from the query_vars of the current page
$lang = $wp->query_var['lang'];
// do other stuff with $lang
...
}
希望这有帮助
编辑
首先我想说,WordPress不支持语言URL,这绝对是一种讽刺。老实说,我从来没有必要这样做,但我的大多数客户都不是国际公司,有国际需求。我将以代码的形式向WordPress提交一些东西,以便在以后的版本中解决这个问题,但现在,您需要一个类似于我在下面创建的插件
所以我做了很多调查来实现这一点。在与提问者进行简短对话后,if发现我的答案不完整。自然地,我开始挖掘。看起来应该是一项平庸的任务,结果却不是一项平庸的任务。简短的版本是,WordPress根本不希望你在URL的中间或开始,在每个URL上插入URL的额外部分。您可以通过上面的代码轻松地使用post URL来实现这一点,但除此之外(页面、附件、作者页面等),您必须做一些特殊的事情。您还可以将部分添加到url的末尾(端点),但即使这样也很复杂
在过去和现在,我与WordPress重写器进行了广泛的合作,我拥有关于这个主题的专家知识。尽管如此,我还是花了4-5个小时编写了一些东西,允许您为所有URL预先添加一个语言指示符,以后可以使用该指示符确定页面应以何种语言显示,而不管页面类型如何。有一个陷阱,我认为是可以接受的。您必须确切地知道并指定要支持的语言前缀。我不认为这对任何使用它的人都是一个问题,但尽管如此,这是一个限制,仅仅是因为重写引擎的工作方式
最后,这里有一个插件,您可以使用它来完成这项工作。我在barebone WP安装上工作,主题是。如果您安装了其他第三方插件,这可能不会适用于它们的所有URL,这取决于它们添加重写规则的方式。在短期内,我可能会将其转换为WP的插件,并将其安装起来,但这至少需要几天的时间。这是一个插件形式的代码原型。在plugins文件夹中创建一个新目录(类似于/wp-content/plugins/lou-lang),然后将此代码粘贴到该文件夹中的php文件中(类似于/wp-content/plugins/lou-lang/lou-lang.php)。然后通过你的管理仪表板激活插件,它将被标记为“Loushou语言URL”
代码:
一旦你安装了插件并定义了你的自定义语言,你就有了最后一步。您必须保存永久链接。要从管理员处执行此操作,请转到:设置->永久链接->保存更改(按钮)。在这一切之后,你应该可以走了
希望这对某人有所帮助,希望我能抽出一些时间在wp.org上发布这篇文章。我在寻找在url路径前面放置语言标记的解决方案时偶然发现了这篇文章。虽然wp_rewrite-solution非常可靠,但它对我来说并不起作用(例如,默认语言前面没有语言标签等等) 因此,我仔细研究了qTranslate插件,之后我发现它使用了一个非常简单而优雅的解决方案: 基本上它做两件事:
<?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 lou_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);
// 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',
));
}
public static function add_directory_rewrite() {
global $wp_rewrite;
$supported_languages = self::get_supported_langs();
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;
$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);
$pv = preg_replace_callback('#'.$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;
}
}
return $new_rules;
}
public static function change_permalink_structure($struct) {
$struct = self::unleadingslashit($struct);
$struct = preg_replace('#^%lang%/?#', '', $struct);
return '/%lang%/'.$struct;
}
public static function extras_rewrite_rules($rules, $struct) {
global $wp_rewrite;
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) );
}
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' : $type).'_rewrite_rules';
add_filter($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();
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%');
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) {
return ( $lang = get_query_var('lang') ) ? $lang : 'en';
}
public static function rewrite_lang_in_permalink($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);
// once you have the default language, it is a simple search and replace
return str_replace('%lang%', $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';
return $vars;
}
public static function qsart_rewrite_debug() {
if (isset($_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();
}
function more_languages($list) {
$my_languages = array(
'de', 'zh', 'bg', 'fr'
);
return array_unique($list + $my_languages);
}
add_filter('lou-get-supported-languages', 'more_languages', 10, 1);
function localization_uri_process() {
global $lang; // then you can access $lang value in your theme's files
if( preg_match("%\A/([a-z]{2})/%", $_SERVER['REQUEST_URI'], $matches) ){
$lang = $matches[1];
$_SERVER['REQUEST_URI'] = preg_replace("%\A/[a-z]{2}/%", '/', $_SERVER['REQUEST_URI'] );
}
else
$lang = 'en'; // your default language
}
add_action( 'plugins_loaded', 'localization_uri_process' );