wordpress不用插件纯代码去除category前缀(无插件)

wordpress自带的category前缀让许多新手伤透了脑袋。网上虽然有很多的教程，但是都不好使。比如说添加重写url规则之后，给固定链接中的分类目录前缀加个.就行了。但是这种方法只是让浏览器中的url去除category，实际上网页代码中还有有那个点。比如说8ven.com/./分类。这样对于优化很不利。还有说使用插件。对于wordpress能不用插件就不用插件。其实插件里的代码是完全可以直接复制到function中使用的。

1.wp no category base。

废话不多说了，直接上代码。下载一个wp no category base，然后把这个文件里的代码全部复制到functions.php文件里边。这样就完全去除了。放到functions.php的好处就是，不用拖累后台，直接使用。

代码如下：

<?php

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;
}

// For Debugging
//add_filter('rewrite_rules_array', 'no_category_base_rewrite_rules_array');
//function no_category_base_rewrite_rules_array($category_rewrite) {
// var_dump($category_rewrite); // For Debugging
//}

// 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;
} ?>