File: /www/wwwroot/www.213n.cn/wp-content/plugins/smart-seo-tool/classes/sitemap.class.php
<?php
class Smart_SEO_Tool_Sitemap extends Smart_SEO_Tool_Base
{
public static $pagesize = 10000;
public static $last_post_transient_id = 'wb_sst_lastest_post_id';
public static function log($msg)
{
return;
error_log(current_time('mysql') . $msg . "\n", 3, __DIR__ . '/ping.log');
}
public static function cnf($key, $default = null)
{
return Smart_SEO_Tool_Admin::cnf($key, $default);
}
public static function sitemap_url()
{
$cnf = self::cnf('sitemap');
$site_map = home_url('/sitemap.xml');
$ret = ['code' => 0, 'desc' => 'success', 'data' => null];
$http = wp_remote_get($site_map, ['sslverify' => false]);
$code = wp_remote_retrieve_response_code($http);
$body = wp_remote_retrieve_body($http);
if ($code === 200) {
if (preg_match('#plugins/smart-seo-tool#', $body)) {
$ret['code'] = 1;
$ret['data'] = $site_map;
$ret['desc'] = _x('当前Sitemap:', 'sitemap处理', WB_SST_TD) . $site_map;
} else {
$ret['code'] = 2;
$ret['desc'] = _x('插件检测到其他插件生成Sitemap，需关闭及删除其他插件地图，否则本插件无法生成Sitemap。', 'sitemap处理', WB_SST_TD);
}
} else if ($cnf['active']) {
$ret['code'] = 3;
$ret['desc'] = _x('未能正常生成Sitemap，请检查rewrite规则或者提交工单。', 'sitemap处理', WB_SST_TD);
}
return $ret;
}
public static function cacheXml() {}
public static function post_types()
{
$post_types = get_post_types(array('public' => true), 'objects');
unset($post_types['attachment']);
unset($post_types['post_format']);
$post_types = array_filter($post_types, 'is_post_type_viewable');
return $post_types;
}
public static function is_taxonomy_viewable($taxonomy)
{
if (is_scalar($taxonomy)) {
$taxonomy = get_taxonomy($taxonomy);
if (!$taxonomy) {
return false;
}
}
return $taxonomy->publicly_queryable;
}
public static function taxonomies()
{
$taxonomies = get_taxonomies(array('public' => true), 'objects');
if (!$taxonomies) {
return $taxonomies;
}
$taxonomies = array_filter($taxonomies, array(__CLASS__, 'is_taxonomy_viewable'));
return $taxonomies;
}
public static function init()
{
add_action('wb_sst_option_update', function ($new, $old) {
global $wp_rewrite;
do {
if ($new['sitemap_seo']['cached'] == $old['sitemap_seo']['cached']) {
break;
}
if ($new['sitemap_seo']['cached']) {
} else {
/*$xml = ABSPATH.'/sitemap.xml';
if(!file_exists($xml)){
break;
}
$content = file_get_contents($xml);
if(!preg_match('#plugins/smart-seo-tool#',$content)){
break;
}
unlink($xml);*/
}
} while (0);
do {
if (!$wp_rewrite->using_permalinks()) {
break;
}
if ($new['sitemap_seo']['active'] != $old['sitemap_seo']['active']) {
if ($new['sitemap_seo']['active']) {
//add_action('generate_rewrite_rules', array(__CLASS__, 'rewrite_rules'));
add_filter('rewrite_rules_array', array(__CLASS__, 'rewrite_rules_array'));
} else {
//remove_action('generate_rewrite_rules',array(__CLASS__,'rewrite_rules'));
remove_filter('rewrite_rules_array', array(__CLASS__, 'rewrite_rules_array'));
}
$wp_rewrite->flush_rules();
}
} while (0);
}, 10, 2);
if (self::cnf('sitemap_seo.active')) {
//add_action('generate_rewrite_rules',array(__CLASS__,'rewrite_rules'));
add_filter('rewrite_rules_array', array(__CLASS__, 'rewrite_rules_array'));
add_filter('query_vars', array(__CLASS__, 'query_vars'));
add_action('parse_request', array(__CLASS__, 'parse_request'));
/*add_action('parse_query', function ($query){
print_r($query->query_vars);
});*/
/*if(self::cnf('sitemap_seo.data_group') == 'data'){
$per_page_num = self::cnf('sitemap_seo.per_page_num');
$per_page = $per_page_num ? absint($per_page_num): 1000;
if(!$per_page)$per_page = 1000;
self::$pagesize = $per_page;
//self::cnf('sitemap_seo.per_page_num');
}*/
/*if(self::cnf('sitemap_seo.push_to.robots')){
}*/
if (self::cnf('sitemap_seo.push_to.google') || self::cnf('sitemap_seo.push_to.bing')) {
//ping
add_action('wb_sst_ping', array(__CLASS__, 'send_ping'), 10, 1);
//daily ping
add_action('wb_sst_ping_daily', array(__CLASS__, 'ping_daily'), 10, 1);
add_action('transition_post_status', array(__CLASS__, 'transition_post_status'), 9999, 3);
if (!wp_get_schedule('wb_sst_ping_daily')) {
wp_schedule_event(time() + (60 * 60), 'daily', 'wb_sst_ping_daily');
}
} else {
wp_clear_scheduled_hook('wb_sst_ping_daily');
}
add_filter('robots_txt', array(__CLASS__, 'sitemap_robots'), 20, 2);
if (self::cnf('sitemap_seo.wp_sitemap')) {
add_filter('wp_sitemaps_enabled', '__return_false');
}
}
/*if(self::cnf('robots_seo.active')){
add_filter('robots_txt',array(__CLASS__,'robots'),11,2);
}else */
/*if(self::cnf('sitemap_seo.active')){
}*/
}
public static function remove_rewrite()
{
//remove_action('generate_rewrite_rules',array(__CLASS__,'rewrite_rules'));
remove_filter('rewrite_rules_array', array(__CLASS__, 'rewrite_rules_array'));
wp_clear_scheduled_hook('wb_sst_ping_daily');
}
public static function transition_post_status($new_status, $old_status, $post)
{
if ($new_status == 'publish') {
set_transient(self::$last_post_transient_id, $post->ID, 120);
wp_schedule_single_event(time() + 5, 'wb_sst_ping');
}
}
public static function post_sitemap($post_id)
{
// global $wpdb;
$db = self::db();
$post = $db->get_row($db->prepare("select YEAR(post_date) ym from $db->posts where ID=%d AND post_type='post' AND post_status='publish'", $post_id));
if ($post) {
return home_url('/sitemap-post-' . $post->ym . '.xml');
}
return '';
}
public static function ping_daily()
{
$lastest_post_time = strtotime(get_lastpostdate('blog'));
$last_daily_ping_time = get_option('wb_sst_daily_ping_time', 0);
if ($lastest_post_time > $last_daily_ping_time) {
self::send_ping();
update_option('wb_sst_daily_ping_time', $lastest_post_time, false);
}
}
public static function send_ping()
{
self::ping(home_url('/sitemap.xml'));
$post_id = get_transient(self::$last_post_transient_id);
self::log(' send_ping');
if ($post_id) {
$post_sitemap = self::post_sitemap($post_id);
self::log('post_sitemap ' . $post_sitemap);
if ($post_sitemap) {
self::ping($post_sitemap);
}
delete_transient(self::$last_post_transient_id);
}
}
public static function ping($sitemap_url)
{
$cnf = self::cnf('sitemap_seo.push_to');
$ping_serv = array();
if ($cnf['google']) {
//$ping_serv['google'] = 'https://www.google.com/webmasters/sitemaps/ping?sitemap=';
$ping_serv['google'] = 'https://bsl.api.wbolt.com/ping.php?sitemap=';
}
if ($cnf['bing']) {
$ping_serv['bing'] = 'https://www.bing.com/webmaster/ping.aspx?siteMap=';
}
self::log('ping serv ' . wp_json_encode($ping_serv));
foreach ($ping_serv as $name => $ping_url) {
$url = $ping_url . urlencode($sitemap_url);
$response = wp_remote_get($url, array('timeout' => 5, 'sslverify' => false));
/*if(is_wp_error($response)){
self::log($response->get_error_message());
}else{
self::log(wp_remote_retrieve_response_code($response));
}*/
/*if(is_wp_error($response) && $name=='google'){
$proxy_url = 'https://proxy.wbolt.com/wp-admin/admin-ajax.php?action=down_img&url='.urlencode($url);
$response = wp_remote_get($proxy_url,array('timeout'=>5,'sslverify' => false));
}
//print_r($response);
if(!is_wp_error($response) && $response['response']['code'] == 200){
$response['body'];
}*/
}
}
public static function robots_txt()
{
$output = [];
$output[] = "User-agent: *";
$site_url = wp_parse_url(site_url());
$path = (!empty($site_url['path'])) ? $site_url['path'] : '';
$output[] = "Disallow: $path/wp-admin/";
$output[] = "Disallow: $path/wp-include/";
$output[] = "Disallow: $path/wp-login.php?redirect_to=*";
$output[] = "Disallow: $path/go?_=*";
$output[] = "Allow: $path/wp-admin/admin-ajax.php";
$output[] = "Sitemap: " . home_url('/sitemap.xml');
return implode(PHP_EOL, $output);
}
public static function sitemap_robots($output, $public)
{
if ($public && !preg_match('#Sitemap:#is', $output)) {
$output .= "Sitemap: " . home_url('/sitemap.xml') . "\n";
}
return $output;
}
public static function robots($output, $public)
{
if ('0' == $public) {
} else {
$txt = self::robots_txt();
$a = explode(PHP_EOL, $txt);
$output = self::cnf('robots_seo.content');
foreach ($a as $s) {
$output = str_replace("$s", '', $output);
}
$output = trim($output);
$output = $txt . $output;
if (!self::cnf('sitemap_seo.active')) {
$s = "Sitemap: " . home_url('/sitemap.xml');
$output = str_replace($s, '', $output);
}
if (!self::cnf('url_seo.active') || !self::cnf('url_seo.set_gopage')) {
$site_url = wp_parse_url(site_url());
$path = (!empty($site_url['path'])) ? $site_url['path'] : '';
$s = "#Disallow: " . preg_quote($path) . "/go\?.*#";
$output = preg_replace($s, '', $output);
}
$output = trim($output);
$a = explode(PHP_EOL, $output);
/*$output = str_replace("\r\n", "\n", $output);
$a = explode("\n", $output);*/
$output = implode(PHP_EOL, array_filter($a));
}
return $output;
}
public static function rewrite_rules_array($rules)
{
$new_rules = array(
'sitemap(-([a-zA-Z0-9_-]+))?\.xml$' => 'index.php?wb_sitemap=$matches[2]',
);
return $new_rules + $rules;
}
public static function rewrite_rules($wp_rewrite)
{
$new_rules = array(
'sitemap(-([a-zA-Z0-9_-]+))?\.xml$' => 'index.php?wb_sitemap=$matches[2]',
);
$wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
public static function query_vars($public_query_vars)
{
$public_query_vars[] = 'wb_sitemap';
return $public_query_vars;
}
public static function parse_request($wp)
{
if (!isset($wp->query_vars['wb_sitemap'])) {
return;
}
// date_default_timezone_set(get_option('timezone_string'));
$param = $wp->query_vars['wb_sitemap'];
//$xml = '';
if (empty($param)) {
$xml = self::index();
} else {
$xml = self::content($param);
}
if (!$xml) {
unset($wp->query_vars['wb_sitemap']);
$wp->query_vars['pagename'] = 'sitemap-' . $param;
//print_r($wp->query_vars);
return;
}
header('Content-Type: text/xml; charset=utf-8');
echo $xml;
exit(0);
}
public static function sitemap_index()
{
$http = wp_remote_get(home_url('/sitemap.xml'));
$body = wp_remote_retrieve_body($http);
if (!$body) {
return array();
}
if (!preg_match_all('#<loc>([^<]+)#is', $body, $match)) {
return array();
}
return $match[1];
//<loc>http://wbolt.cn/sitemap-category.xml</loc>
}
public static function index()
{
// global $wpdb;
$xml = self::header('index');
$db = self::db();
$blog_update = get_lastpostmodified('blog');
$cnf = self::cnf('sitemap_seo.content_item');
$group_type = self::cnf('sitemap_seo.data_group');
//首页
if ($cnf['index']['switch']) {
$xml .= self::add_sitemap("misc", $blog_update);
}
$post_types = self::post_types();
foreach ($post_types as $post_type => $term) {
if ($post_type == 'page') continue;
if (!isset($cnf[$post_type])) {
continue;
}
if (!$cnf[$post_type]['switch']) {
continue;
}
/*$q = "
SELECT
MAX(p.post_modified) as `last_mod`,
YEAR(p.post_date) ym,COUNT(1) num
FROM
{$db->posts} p
WHERE
p.post_password = ''
AND p.post_type = '" . esc_sql($post_type) . "'
AND p.post_status = 'publish'
GROUP BY
YEAR(p.post_date)
ORDER BY
p.post_date DESC";
$result_list = $db->get_results($q);*/
$result_list = self::query_post($post_type);
if ($result_list) {
if ($group_type == 'year') {
foreach ($result_list as $post) {
$max_page = ceil($post->num / self::$pagesize);
$xml .= self::add_sitemap($post_type . "-" . $post->ym, $post->last_mod);
for ($i = 1; $i < $max_page; $i++) {
$xml .= self::add_sitemap($post_type . "-" . $post->ym . '-' . $i, $post->last_mod);
}
}
} else if ($group_type == 'data') {
//print_r($result_list);
foreach ($result_list as $post) {
$xml .= self::add_sitemap($post_type . "-" . $post->ym, $post->last_mod);
}
}
}
}
$taxonomies = self::taxonomies();
//文章分类、及post_tag
foreach ($taxonomies as $taxName => $taxonomy) {
$opt_key = $taxName;
$tax_name = $taxonomy->name;
if (isset($post_types[$taxName])) {
$opt_key = 'tax_' . $taxName;
$tax_name = 'tax_' . $tax_name;
}
if (!isset($cnf[$opt_key])) continue;
if (!$cnf[$opt_key]['switch']) {
continue;
}
/*$taxonomy = get_taxonomy($taxName);
if(!$taxonomy){
continue;
}*/
$num = wp_count_terms(array('hide_empty' => true, 'taxonomy' => $tax_name));
if ($num < 1) {
continue;
}
//rint_r([$tax_name,$num]);
$max_page = ceil($num / self::$pagesize);
for ($i = 0; $i < $max_page; $i++) {
if (!$i) {
$xml .= self::add_sitemap($tax_name, $blog_update);
continue;
}
$xml .= self::add_sitemap($tax_name . '-' . $i, $blog_update);
}
}
if ($cnf['page']['switch']) {
$last_mod = $db->get_var("SELECT MAX(post_modified) FROM $db->posts WHERE post_type='page' AND post_status='publish' AND post_password=''");
if ($last_mod) {
$xml .= self::add_sitemap("page", $last_mod);
}
}
if ($cnf['author']['switch']) {
$xml .= self::add_sitemap("authors", $blog_update);
}
if ($cnf['archive']['switch']) {
$xml .= self::add_sitemap("archives", $blog_update);
}
$xml .= self::footer('index');
return $xml;
}
public static function query_post($post_type)
{
// global $wpdb;
$db = self::db();
$cnf = self::cnf('sitemap_seo');
//data_group
//per_page_num
if ($cnf['data_group'] == 'data') {
$per_page = $cnf['per_page_num'] ? absint($cnf['per_page_num']) : 1000;
if (!$per_page) $per_page = 1000;
$total = $db->get_var($db->prepare("SELECT COUNT(1) num FROM {$db->posts} p WHERE p.post_password = ''
AND p.post_type = %s AND p.post_status = 'publish'", $post_type));
if (!$total) {
return [];
}
$max_page = ceil($total / $per_page);
$list = [];
for ($page = 1; $page <= $max_page; $page++) {
$offset = ($page - 1) * $per_page;
$q = "
SELECT
MAX(post_modified) as `last_mod`,
$page ym,COUNT(1) num
FROM (
SELECT p.ID, p.post_modified FROM {$db->posts} p
WHERE
p.post_password = ''
AND p.post_type = %s
AND p.post_status = 'publish'
ORDER BY
p.post_date DESC LIMIT $offset,$per_page
) AS p2
";
$list[] = $db->get_row($db->prepare($q, $post_type));
}
return $list;
} else {
$q = "
SELECT
MAX(p.post_modified) as `last_mod`,
YEAR(p.post_date) ym,COUNT(1) num
FROM
{$db->posts} p
WHERE
p.post_password = ''
AND p.post_type = %s
AND p.post_status = 'publish'
GROUP BY
YEAR(p.post_date)
ORDER BY
p.post_date DESC";
$result_list = $db->get_results($db->prepare($q, $post_type));
return $result_list;
}
return [];
}
public static function content($param)
{
$query = trim($param);
$a = explode('-', $param, 2);
$type = '';
$param = '';
if (isset($a[0])) {
$type = $a[0];
}
if (isset($a[1])) {
$param = $a[1];
}
$xml = '';
switch ($type) {
case 'misc':
$xml .= self::content_misc($param);
break;
case 'page':
$xml .= self::content_post('page', null);
break;
case 'authors':
$xml .= self::content_author();
break;
case 'archives':
$xml .= self::content_archives();
break;
case 'category':
$xml .= self::content_taxonomy('category', $param);
break;
case 'post_tag':
$xml .= self::content_taxonomy('post_tag', $param);
break;
case 'post':
$xml .= self::content_post('post', $param);
break;
default:
$match = false;
$post_types = self::post_types();
foreach ($post_types as $type => $r) {
if (in_array($type, array('post', 'page'))) {
continue;
}
if (preg_match('#^' . preg_quote($type) . '(-([0-9-]+))?$#', $query, $match)) {
$xml .= self::content_post($type, $match[2]);
$match = true;
break;
}
}
if ($match) {
break;
}
$taxonomies = self::taxonomies();
foreach ($taxonomies as $taxName => $taxonomy) {
if (in_array($taxName, array('category', 'post_tag'))) {
continue;
}
$tax = $taxName;
if (isset($post_types[$taxName])) {
$tax = 'tax_' . $taxName;
}
if (preg_match('#^' . preg_quote($tax) . '(-([0-9]+))?$#', $query, $match)) {
//print_r($match);
$xml .= self::content_taxonomy($taxName, isset($match[2]) ? $match[2] : '', $tax);
$match = true;
break;
}
}
break;
}
if (empty($xml)) {
return '';
}
$xml2 = $xml;
$xml = self::header('url');
$xml .= $xml2;
$xml .= self::footer('url');
return $xml;
}
private static function content_misc($param)
{
$blog_update = get_lastpostmodified('blog');
$cnf = self::cnf('sitemap_seo.content_item.index');
$xml = self::add_url(home_url(), $blog_update, $cnf['frequency'], $cnf['weights']);
return $xml;
}
private static function content_taxonomy($taxonomy, $param, $opt_key = null)
{
if (!$opt_key) {
$opt_key = $taxonomy;
}
$cnf = self::cnf('sitemap_seo.content_item.' . $opt_key);
$db = self::db();
//print_r([$taxonomy,$param]);
// global $wpdb;
$sql = "SELECT
MAX(p.post_modified) as _mod_date
FROM
{$db->posts} p,
{$db->term_relationships} r
WHERE
p.ID = r.object_id
AND p.post_status = 'publish'
AND p.post_password = ''
AND r.term_taxonomy_id = %d";
//print_r($param);
$query_args = array("hide_empty" => true, "hierarchical" => false, 'number' => self::$pagesize, 'offset' => 0);
if (preg_match('#^\d+$#i', $param)) {
$query_args['offset'] = $param * self::$pagesize;
}
//print_r($query_args);
$query_args['taxonomy'] = $taxonomy;
$terms = get_terms($query_args);
$xml = '';
foreach ($terms as $term) {
$last_mod = $db->get_var($db->prepare($sql, $term->term_taxonomy_id));
$xml .= self::add_url(get_term_link($term, $term->taxonomy), $last_mod, $cnf['frequency'], $cnf['weights']);
}
return $xml;
}
private static function content_post($post_type, $param)
{
// global $wpdb;
$cnf = self::cnf('sitemap_seo.content_item.' . $post_type);
$group_type = self::cnf('sitemap_seo.data_group');
$xml = '';
$where = '';
$db = self::db();
//print_r([$post_type,$param]);
$limit = '';
$order = 'DESC';
if ($param) {
if (preg_match('#^(\d+)-(\d+)$#', $param, $m)) {
$year = $m[1];
$offset = $m[2] * self::$pagesize;
$limit = ' LIMIT ' . $offset . ',' . self::$pagesize;
} else {
if ($group_type == 'data' && preg_match('#^\d+$#', $param)) {
$per_page_num = self::cnf('sitemap_seo.per_page_num');
$per_page = $per_page_num ? absint($per_page_num) : 1000;
if (!$per_page) $per_page = 1000;
$year = '';
$page = absint($param);
if (!$page) $page = 1;
$offset = ($page - 1) * $per_page;
$limit = " LIMIT $offset,$per_page";
//$order = 'DESC';
} else {
$year = $param;
$limit = ' LIMIT 0,' . self::$pagesize;
}
}
if ($year) {
$where = $db->prepare(" AND YEAR(p.post_date) = %d", $year);
}
}
$sql = "SELECT
p.ID,
p.post_author,
p.post_status,
p.post_name,
p.post_parent,
p.post_type,
p.post_date,
p.post_date_gmt,
p.post_modified,
p.post_modified_gmt,
p.comment_count
FROM
{$db->posts} p
WHERE
p.post_password = ''
AND p.post_type = '%s'
AND p.post_status = 'publish'
$where
ORDER BY
p.post_date $order " . $limit;
$list = $db->get_results($db->prepare($sql, $post_type));
foreach ($list as $post) {
$url = get_permalink($post);
$xml .= self::add_url($url, $post->post_modified, $cnf['frequency'], $cnf['weights']);
}
return $xml;
}
public static function content_author()
{
// global $wpdb;
$xml = '';
$cnf = self::cnf('sitemap_seo.content_item.author');
$sitemap_cnf = self::cnf('sitemap_seo.content_item');
$post_types = self::post_types();
$db = self::db();
$query_type = array();
foreach ($post_types as $type => $term) {
if (isset($sitemap_cnf[$type]) && $sitemap_cnf[$type]['switch']) {
$query_type[] = $type;
}
}
if (empty($query_type)) {
return $xml;
}
$types = implode("','", $query_type);
$sql = "SELECT DISTINCT
u.ID,
u.user_nicename,
MAX(p.post_modified) AS last_mod
FROM
{$db->users} u,
{$db->posts} p
WHERE
p.post_author = u.ID
AND p.post_status = 'publish'
AND p.post_type IN('$types')
AND p.post_password = ''
GROUP BY
u.ID";
$list = $db->get_results($sql);
foreach ($list as $author) {
$url = get_author_posts_url($author->ID, $author->user_nicename);
$xml .= self::add_url($url, $author->last_mod, $cnf['frequency'], $cnf['weights']);
}
return $xml;
}
public static function content_archives()
{
// global $wpdb;
$xml = '';
$cnf = self::cnf('sitemap_seo.content_item.archive');
$sitemap_cnf = self::cnf('sitemap_seo.content_item');
$post_types = self::post_types();
$query_type = array();
foreach ($post_types as $type => $term) {
if (isset($sitemap_cnf[$type]) && $sitemap_cnf[$type]['switch']) {
$query_type[] = $type;
}
}
if (empty($query_type)) {
return $xml;
}
$db = self::db();
$types = implode("','", $query_type);
$list = $db->get_results("
SELECT DISTINCT
YEAR(post_date) AS `year`,
MONTH(post_date) AS `month`,
MAX(post_date) AS last_mod,
count(ID) AS posts
FROM
$db->posts
WHERE
post_status = 'publish'
AND post_type IN('$types')
AND post_password = ''
GROUP BY
YEAR(post_date),
MONTH(post_date)
ORDER BY
post_date DESC");
foreach ($list as $archive) {
$url = get_month_link($archive->year, $archive->month);
$xml .= self::add_url($url, $archive->last_mod, $cnf['frequency'], $cnf['weights']);
}
return $xml;
}
public static function last_mod($date)
{
$time = strtotime($date);
return gmdate('c', $time);
}
public static function add_url($url, $last_mod, $fr, $pr)
{
$xml = '<url>';
$xml .= ' <loc>' . $url . '</loc>';
$xml .= ' <lastmod>' . self::last_mod($last_mod) . '</lastmod>';
$xml .= ' <changefreq>' . $fr . '</changefreq>';
$xml .= ' <priority>' . $pr . '</priority>';
$xml .= '</url>';
return $xml;
}
public static function add_sitemap($url, $last_mod)
{
$xml = '<sitemap>';
$xml .= ' <loc>' . home_url('/sitemap-' . $url . '.xml') . '</loc>';
$xml .= ' <lastmod>' . self::last_mod($last_mod) . '</lastmod>';
$xml .= '</sitemap>';
return $xml;
}
public static function header($type)
{
$xml = '<' . '?xml version="1.0" encoding="UTF-8"?' . '>';
$xml .= '<' . '?xml-stylesheet type="text/xsl" href="' . esc_url(plugin_dir_url(SMART_SEO_TOOL_BASE_FILE) . 'assets/sitemap.xsl') . '"?' . '>';
if ($type == 'url') {
$xml .= '<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
} else {
$xml .= '<sitemapindex xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/siteindex.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
}
return $xml;
}
public static function footer($type)
{
if ($type == 'url') {
$xml = '</urlset>';
} else {
$xml = '</sitemapindex>';
}
return $xml;
}
}