来自 http://www.zzhck.com/617.html
相信很多人用了wordpress后都会选择去掉链接中的category,以前比较完美的方法是使用WP No Category Base之类的插件,使用插件有个好处就是301重定向,本站也正在使用Remove Category URL插件!但是插件多了,确实会影响一部分运行速度,比较占用内存和CPU!最近在各种折腾,能用代码的,尽量不用插件!感谢前辈们的分享精神,找到一种效果和WP No Category Base插件一样的代码,再次做个记录,也分享给大家!

将以下代码加在主题目录的functions.php(记住半角和?>前面
add_action('load-themes.php', 'no_category_base_refresh_rules');
// WordPress免插件去除链接categroy
register_activation_hook(__FILE__, 'no_category_base_refresh_rules');
add_action('created_category', 'no_category_base_refresh_rules');
add_action('edited_category', 'no_category_base_refresh_rules');
add_action('delete_category', 'no_category_base_refresh_rules');
function no_category_base_refresh_rules() {
 global $wp_rewrite;
 $wp_rewrite -> flush_rules();
}
register_deactivation_hook(__FILE__, 'no_category_base_deactivate');
function no_category_base_deactivate() {
 remove_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
 // We don't want to insert our custom rules again
 no_category_base_refresh_rules();
}
// Remove category base
add_action('init', 'no_category_base_permastruct');
function no_category_base_permastruct() {
 global $wp_rewrite, $wp_version;
 if (version_compare($wp_version, '3.4', '<')) {
 // For pre-3.4 support
 $wp_rewrite -> extra_permastructs['category'][0] = '%category%';
 } else {
 $wp_rewrite -> extra_permastructs['category']['struct'] = '%category%';
 }
}
// Add our custom category rewrite rules
add_filter('category_rewrite_rules', 'no_category_base_rewrite_rules');
function no_category_base_rewrite_rules($category_rewrite) {
 //var_dump($category_rewrite); // For Debugging
 $category_rewrite = array();
 $categories = get_categories(array('hide_empty' => false));
 foreach ($categories as $category) {
 $category_nicename = $category -> slug;
 if ($category -> parent == $category -> cat_ID)// recursive recursion
 $category -> parent = 0;
 elseif ($category -> parent != 0)
 $category_nicename = get_category_parents($category -> parent, false, '/', true) . $category_nicename;
 $category_rewrite['(' . $category_nicename . ')/(?:feed/)?(feed|rdf|rss|rss2|atom)/?$'] = 'index.php?category_name=$matches[1]&feed=$matches[2]';
 $category_rewrite['(' . $category_nicename . ')/page/?([0-9]{1,})/?$'] = 'index.php?category_name=$matches[1]&paged=$matches[2]';
 $category_rewrite['(' . $category_nicename . ')/?$'] = 'index.php?category_name=$matches[1]';
 }
 // Redirect support from Old Category Base
 global $wp_rewrite;
 $old_category_base = get_option('category_base') ? get_option('category_base') : 'category';
 $old_category_base = trim($old_category_base, '/');
 $category_rewrite[$old_category_base . '/(.*)$'] = 'index.php?category_redirect=$matches[1]';
 
 //var_dump($category_rewrite); // For Debugging
 return $category_rewrite;
}
// Add 'category_redirect' query variable
add_filter('query_vars', 'no_category_base_query_vars');
function no_category_base_query_vars($public_query_vars) {
 $public_query_vars[] = 'category_redirect';
 return $public_query_vars;
}
// Redirect if 'category_redirect' is set
add_filter('request', 'no_category_base_request');
function no_category_base_request($query_vars) {
 //print_r($query_vars); // For Debugging
 if (isset($query_vars['category_redirect'])) {
 $catlink = trailingslashit(get_option('home')) . user_trailingslashit($query_vars['category_redirect'], 'category');
 status_header(301);
 header("Location: $catlink");
 exit();
 }
 return $query_vars;
}
注意事项

如果你已经在用WP No Category Base之类插件的话就别用以上方法了,那个插件用了一次的话就必须得一直用下去;
不然文章页会无法访问,当然你也可以想办法把这个插件彻底卸载了,再用上面的方法!
还有就是把WP No Category Base之类的插件关闭自然也是没用的….切记!!!

关闭No Category之类的插件更换代码的方法:

1.把【固定连接】改为【默认】状态,然后,关闭【WP NO category base】插件
2.再改回之前的URL形式就可以了。
3.最后你就可卸载掉该插件了。

标签:WordPress

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