PHP get_wp_title_rss函数代码示例

/**
 * Return feed title.
 * 
 * @return string
 */
function get_feed_title()
{
    $info = strip_tags(Settings\get_site_option('title'));
    $title = apply_filters('get_bloginfo_rss', convert_chars($info));
    if (!$title) {
        $title = get_bloginfo_rss('name');
        $title .= get_wp_title_rss();
    }
    return apply_filters('inpsmf_feed_title', $title);
}

do_action('atom_ns');
/**
 * Fires inside the feed tag in the Atom comment feed.
 *
 * @since 2.8.0
 */
do_action('atom_comments_ns');
?>
>
	<title type="text"><?php 
if (is_singular()) {
    printf(ent2ncr(__('Comments on %s')), get_the_title_rss());
} elseif (is_search()) {
    printf(ent2ncr(__('Comments for %1$s searching on %2$s')), get_bloginfo_rss('name'), get_search_query());
} else {
    printf(ent2ncr(__('Comments for %s')), get_wp_title_rss());
}
?>
</title>
	<subtitle type="text"><?php 
bloginfo_rss('description');
?>
</subtitle>

	<updated><?php 
echo mysql2date('Y-m-d\\TH:i:s\\Z', get_lastcommentmodified('GMT'), false);
?>
</updated>

<?php 
if (is_singular()) {

/**
 * Display the blog title for display of the feed title.
 *
 * @package WordPress
 * @subpackage Feed
 * @since 2.2.0
 * @uses apply_filters() Calls 'wp_title_rss' on the blog title.
 * @see wp_title() $sep parameter usage.
 *
 * @param string $sep Optional.
 */
function wp_title_rss($sep = '»')
{
    echo apply_filters('wp_title_rss', get_wp_title_rss($sep));
}

/**
 * Output an RSS2 feed of replies, based on the query passed.
 *
 * @since bbPress (r3171)
 *
 * @uses bbp_version()
 * @uses bbp_is_single_topic()
 * @uses bbp_user_can_view_forum()
 * @uses bbp_get_topic_forum_id()
 * @uses bbp_show_load_topic()
 * @uses bbp_topic_permalink()
 * @uses bbp_topic_title()
 * @uses bbp_get_topic_reply_count()
 * @uses bbp_topic_content()
 * @uses bbp_has_replies()
 * @uses bbp_replies()
 * @uses bbp_the_reply()
 * @uses bbp_reply_url()
 * @uses bbp_reply_title()
 * @uses bbp_reply_content()
 * @uses get_wp_title_rss()
 * @uses get_option()
 * @uses bloginfo_rss
 * @uses self_link()
 * @uses the_author()
 * @uses get_post_time()
 * @uses rss_enclosure()
 * @uses do_action()
 * @uses apply_filters()
 *
 * @param array $replies_query
 */
function bbp_display_replies_feed_rss2($replies_query = array())
{
    // User cannot access forum this topic is in
    if (bbp_is_single_topic() && !bbp_user_can_view_forum(array('forum_id' => bbp_get_topic_forum_id()))) {
        return;
    }
    // Adjust the title based on context
    if (bbp_is_single_topic() && bbp_user_can_view_forum(array('forum_id' => bbp_get_topic_forum_id()))) {
        $title = apply_filters('wp_title_rss', get_wp_title_rss(' » '));
    } elseif (!bbp_show_lead_topic()) {
        $title = ' » ' . __('All Posts', 'bbpress');
    } else {
        $title = ' » ' . __('All Replies', 'bbpress');
    }
    // Display the feed
    header('Content-Type: ' . feed_content_type('rss-http') . '; charset=' . get_option('blog_charset'), true);
    header('Status: 200 OK');
    echo '<?xml version="1.0" encoding="' . get_option('blog_charset') . '"?' . '>';
    ?>

	<rss version="2.0"
		xmlns:content="http://purl.org/rss/1.0/modules/content/"
		xmlns:wfw="http://wellformedweb.org/CommentAPI/"
		xmlns:dc="http://purl.org/dc/elements/1.1/"
		xmlns:atom="http://www.w3.org/2005/Atom"

		<?php 
    do_action('bbp_feed');
    ?>
	>

	<channel>
		<title><?php 
    bloginfo_rss('name');
    echo $title;
    ?>
</title>
		<atom:link href="<?php 
    self_link();
    ?>
" rel="self" type="application/rss+xml" />
		<link><?php 
    self_link();
    ?>
</link>
		<description><?php 
    //
    ?>
</description>
		<pubDate><?php 
    echo mysql2date('D, d M Y H:i:s O', current_time('mysql'), false);
    ?>
</pubDate>
		<generator>http://bbpress.org/?v=<?php 
    bbp_version();
    ?>
</generator>
		<language><?php 
    bloginfo_rss('language');
    ?>
</language>

		<?php 
    do_action('bbp_feed_head');
    ?>

		<?php 
    if (bbp_is_single_topic()) {
//.........这里部分代码省略.........

/**
 * Universal Feed Loader
 * hooked function
 * supports custom settings
 * NOTE uses just-in-time initialization
 * @see     functions.php, feed-links include module
 * @uses    Universal Feed Writer class
 */
function tLoadFeed()
{
    global $tFeeds, $tCurrentFeed, $wp_query, $post;
    $tCurrentFeed = get_query_var('feed');
    // FB::trace($tCurrentFeed);
    if (empty($tCurrentFeed) || $tCurrentFeed == 'feed') {
        $tCurrentFeed = get_default_feed();
        # rss2
    }
    $args =& $tFeeds[$tCurrentFeed];
    $defaults = array('num_entries' => get_option('posts_per_rss'), 'do_images' => true, 'size_image' => 'large', 'feed_type' => defined('TFEED') ? TFEED : 'atom', 'feed_title' => 'Recent Posts', 'feed_description' => 'An unfiltered list limited to ' . $num_entries . ' posts');
    $args = apply_filters('t_load_feed_args', $args);
    $args = wp_parse_args($args, $defaults);
    # customizing default info
    if (is_category()) {
        $category = t_get_term_name(get_query_var('cat'), 'category');
        $args['feed_title'] = 'Feed for ' . $category;
        $args['feed_description'] = 'A list limited to ' . $args['num_entries'] . ' posts categorized under ' . $category;
    }
    if ($wp_query->is_comment_feed) {
        # comment feed
        if (is_singular()) {
            $args['feed_title'] = 'Recent comments on ' . get_the_title_rss();
        } elseif (is_search()) {
            $args['feed_title'] = 'Comments for search on ' . attribute_escape($wp_query->query_vars['s']);
        } else {
            $args['feed_title'] = 'Recent comments for ' . get_wp_title_rss();
        }
        $args['feed_title'] = ent2ncr($args['feed_title']);
        $args['feed_description'] = 'A list limited to ' . $args['num_entries'] . ' comments';
    }
    $args['query'] = tGetFeedQuery();
    if (is_array($args['query'])) {
        $args['query']['showposts'] =& $args['num_entries'];
    }
    if ($tCurrentFeed == 'rss' || $tCurrentFeed == 'rss2' || $tCurrentFeed == 'atom') {
        $args['feed_type'] = $tCurrentFeed;
    } else {
        $args['feed_title'] = ucwords(str_replace('_', ' ', $tCurrentFeed));
    }
    extract($args);
    # namespacing
    switch ($feed_type) {
        case 'rss2':
            $namespace = '
                 xmlns:dc="http://purl.org/dc/elements/1.1/"
                 xmlns:atom="http://www.w3.org/2005/Atom"
                 xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
                ';
            $feedType = RSS2;
            break;
        case 'rss':
            $namespace = '
                 xmlns:dc="http://purl.org/dc/elements/1.1/"
                 xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
                 xmlns:admin="http://webns.net/mvcb/"
                 xmlns:content="http://purl.org/rss/1.0/modules/content/"
                ';
            $feedType = RSS1;
            break;
        case 'atom':
        default:
            $namespace = '
                 xmlns:thr="http://purl.org/syndication/thread/1.0"
                 xml:lang="' . get_option('rss_language') . '"
                 xml:base="' . get_bloginfo_rss('url') . '"
                 ';
            $feedType = ATOM;
            break;
    }
    $GLOBALS['t_feed_ns'] = $namespace;
    # for use in FeedWriter
    add_filter('t_feed_ns', create_function('$default', 'return $default . $GLOBALS["t_feed_ns"];'));
    # start
    $feedWriter = new FeedWriter($feedType);
    require TDIR . TMODINC . 'feed-head.php';
    require TDIR . TMODINC . 'feed-body.php';
    # output
    $out = ob_get_contents();
    $out = str_replace(array("\n", "\r", "\t", ' '), '', $input);
    ob_end_clean();
    $feedWriter->generateFeed();
    // lifestream_rss_feed();
    // FB::info($args);
}

	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	<?php 
do_action('rss2_ns');
do_action('rss2_comments_ns');
?>
>
<channel>
	<title><?php 
if (is_singular()) {
    printf(ent2ncr(__('Comments on: %s')), get_the_title_rss() . ' by ' . $user_print_name);
} elseif (is_search()) {
    printf(ent2ncr(__('Comments for %s searching on %s')), get_bloginfo_rss('name'), esc_attr($wp_query->query_vars['s']));
} else {
    printf(ent2ncr(__('Comments for %s')), get_bloginfo_rss('name') . ' by ' . $user_print_name . get_wp_title_rss());
}
?>
</title>
	<atom:link href="<?php 
self_link();
?>
" rel="self" type="application/rss+xml" />
	<link><?php 
is_single() ? the_permalink_rss() : bloginfo_rss("url");
?>
</link>
	<description><?php 
bloginfo_rss("description");
?>
</description>

/**
 * Display the blog title for display of the feed title.
 *
 * @since 2.2.0
 * @see wp_title() $sep parameter usage.
 *
 * @param string $sep Optional.
 */
function wp_title_rss($sep = '»')
{
    /**
     * Filter the blog title for display of the feed title.
     *
     * @since 2.2.0
     *
     * @see get_wp_title_rss()
     *
     * @param string $wp_title The current blog title.
     * @param string $sep      Separator used by wp_title().
     */
    echo apply_filters('wp_title_rss', get_wp_title_rss($sep), $sep);
}

function weaverii_sc_info()
{
    global $current_user;
    $out = '<strong>' . WEAVERII_THEMEVERSION . ' Info</strong><hr />';
    get_currentuserinfo();
    if (isset($current_user->display_name)) {
        $out .= '<em>User:</em> ' . $current_user->display_name . '<br />';
    }
    $out .= '&nbsp;&nbsp;' . wp_register('', '<br />', false);
    $out .= '&nbsp;&nbsp;' . wp_loginout('', false) . '<br />';
    global $weaverii_mobile;
    $device = $weaverii_mobile;
    $out .= '<em>Browser:</em> ' . ($device ? $device['browser'] . '/' . $device['type'] . '/' . $device['os'] : 'Non-Mobile Browser') . '<br />';
    $agent = 'Not Available';
    if (isset($_SERVER["HTTP_USER_AGENT"])) {
        $agent = $_SERVER['HTTP_USER_AGENT'];
    }
    $out .= '<em>User Agent</em>: <small>' . $agent . '</small>';
    $out .= '<div id="example"></div>
<script type="text/javascript">
var txt = "";
var myWidth;
if( typeof( window.innerWidth ) == "number" ) {
//Non-IE
myWidth = window.innerWidth;
} else if( document.documentElement &&
( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
//IE 6+ in "standards compliant mode"
myWidth = document.documentElement.clientWidth;
} else if ( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
//IE 4 compatible
myWidth = document.body.clientWidth;
}
txt+= "<em>Browser Width: </em>" + myWidth + " px<br>";
document.getElementById("example").innerHTML=txt;
</script>';
    if (!weaverii_use_inline_css(weaverii_get_css_filename())) {
        $out .= '<em>Using CSS file:</em> ' . weaverii_get_css_filename();
    } else {
        $out .= '<em>Using Inline CSS</em>';
    }
    $out .= '<br /><em>Mobile Mode: </em> ' . weaverii_getopt('_wii_mode_mobile');
    $out .= '<br /><em>Feed title:</em> ' . get_bloginfo_rss('name') . get_wp_title_rss();
    $out .= '<br /><em>You are using</em> WordPress ' . $GLOBALS['wp_version'] . '<br /><em>PHP Version:</em> ' . phpversion();
    $out .= '<br /><em>Memory:</em> ' . round(memory_get_usage() / 1024 / 1024, 2) . 'M of ' . (int) ini_get('memory_limit') . 'M <hr />';
    return $out;
}

/**
 * Inject into RSS2 xml header
 * @see http://www.w3schools.com/rss/rss_reference.asp
 */
function ts_feed_spruce_rss2_head()
{
    $options = ts_feed_spruce_get_options();
    if (!empty($options['rss2image'])) {
        echo "<image>";
        echo "<link>" . get_bloginfo_rss('url') . '</link>';
        echo "<title>" . get_bloginfo_rss('name') . get_wp_title_rss('&#187;') . '</title>';
        echo "<url>" . esc_url($options['rss2image']) . '</url>';
        echo "</image>";
    }
    echo '<copyright><![CDATA[';
    if (!empty($options['copyright'])) {
        echo ent2ncr(strip_tags(str_ireplace('%year%', copyright_date(), $options['copyright'])));
    } else {
        echo ent2ncr('(c) ' . copyright_date() . ' ' . get_bloginfo('name'));
    }
    echo ']]></copyright>';
}

function amt_metadata_analysis($default_text, $metadata_block_head, $metadata_block_footer, $metadata_block_content_filter)
{
    // Analysis is appended only o content pages
    if (!is_singular()) {
        return $default_text;
    }
    // Check the filter based switch
    if (!apply_filters('amt_metadata_analysis_enable', true)) {
        return $default_text;
    }
    //
    // Collect data
    //
    $options = amt_get_options();
    $post = amt_get_queried_object();
    if (!isset($post->ID) || $post->ID <= 0) {
        return $default_text;
    }
    // Content and stats
    // Post content
    $post_content = strtolower(amt_get_clean_post_content($options, $post));
    $post_content_length = strlen($post_content);
    //var_dump($post_content);
    // Total words
    if (function_exists('wordstats_words')) {
        $post_word_count = wordstats_words($post_content);
        // provided by the word-statistics-plugin by FD
    } else {
        $post_word_count = str_word_count($post_content);
    }
    // Total sentences
    if (function_exists('wordstats_sentences')) {
        $post_sentence_count = wordstats_sentences($post_content);
        // provided by the word-statistics-plugin by FD
    } else {
        $post_sentence_count = preg_match_all('/[.!?\\r]/', $post_content, $dummy);
    }
    // Total syllables
    // TODO: Find better function
    $post_syllable_count = preg_match_all('/[aeiouy]/', $post_content, $dummy);
    // Titles
    // Original
    $post_title = strtolower(strip_tags(get_the_title($post->ID)));
    // Title HTML element
    if ($options['enable_advanced_title_management'] == '1') {
        // If Advanced Title management is enabled, use this directly:
        $post_title_html_element = strtolower(amt_get_title_for_title_element($options, $post));
    } else {
        if (version_compare(get_bloginfo('version'), '4.4', '>=')) {
            // Since WP 4.4
            // - https://make.wordpress.org/core/2015/10/20/document-title-in-4-4/
            //$post_title_html_element = strtolower( apply_filters('document_title_parts', array('title' => $post_title) ) );
            //$post_title_html_element = wp_get_document_title();
            $post_title_html_element = strtolower(get_wp_title_rss());
        } else {
            // Reverting back to the one argument version of the fitlering function.
            //$post_title_html_element = strtolower( apply_filters('wp_title', $post_title) );
            // Until testing is performed on old WP versions we just use post title
            $post_title_html_element = $post_title;
        }
    }
    //var_dump($post_title_html_element);
    // Title in metadata
    $post_title_metadata = strtolower(amt_get_title_for_metadata($options, $post));
    //var_dump($post_title_metadata);
    // URL
    $post_url = str_replace(get_bloginfo('url'), '', amt_get_permalink_for_multipage($post));
    //var_dump($post_url);
    // Description
    $description = '';
    if (array_key_exists('basic:description', $metadata_block_head)) {
        $description = strtolower(preg_replace('#^.*content="([^"]+)".*$#', '$1', $metadata_block_head['basic:description']));
    }
    //var_dump($description);
    // Keywords
    $keywords = array();
    if (array_key_exists('basic:keywords', $metadata_block_head)) {
        $keywords_content = strtolower(preg_replace('#^.*content="([^"]+)".*$#', '$1', $metadata_block_head['basic:keywords']));
        $keywords = explode(',', str_replace(', ', ',', $keywords_content));
    }
    //var_dump($keywords);
    // Keyword matching pattern
    //$keyword_matching_pattern = '#(?:%s)#';
    //$keyword_matching_pattern = '#(?:%s)[[:^alpha:]]#';
    //$keyword_matching_pattern = '#(?:%s)[[:^alpha:]]?#';
    $keyword_matching_pattern = '#(?:%s)(?:[[:^alpha:]]|$)#';
    $keyword_matching_pattern = apply_filters('amt_metadata_analysis_keyword_matching_pattern', $keyword_matching_pattern);
    // Whether to use topic keywords field or the keywords from the 'keywords' meta tag.
    $use_keywords = false;
    // First check for a field that contains topic keywords.
    $topic_keywords_field_name = apply_filters('amt_metadata_analysis_topic_keywords_field', 'topic_keywords');
    $topic_keywords_field_value = get_post_meta($post->ID, $topic_keywords_field_name, true);
    if (!empty($topic_keywords_field_value)) {
        $topic_keywords = explode(',', str_replace(', ', ',', $topic_keywords_field_value));
    } else {
        $topic_keywords = $keywords;
        $use_keywords = true;
        //var_dump($topic_keywords);
    }
    $BR = PHP_EOL;
//.........这里部分代码省略.........

    /**
     * Display icons in RSS2.
     */
    public function rss2_icon()
    {
        /** This filter is documented in modules/site-icon/jetpack-site-icon.php */
        if (apply_filters('site_icon_has_favicon', false)) {
            return;
        }
        $rss_title = get_wp_title_rss();
        if (empty($rss_title)) {
            $rss_title = get_bloginfo_rss('name');
        }
        $icon = jetpack_site_icon_url(null, 32);
        if ($icon) {
            echo '
	<image>
		<url>' . convert_chars($icon) . '</url>
		<title>' . $rss_title . '</title>
		<link>' . get_bloginfo_rss('url') . '</link>
		<width>32</width>
		<height>32</height>
	</image> ' . "\n";
        }
    }

        function enable_seo()
        {
            global $post;
            global $wp_query;
            $post_datas = mars_get_post_data($post->ID);
            $meta = NULL;
            $layout = get_post_meta($post->ID, 'layout', true) ? get_post_meta($post->ID, 'layout', true) : 'small';
            if ($layout == 'large') {
                ### Fullwidth Video
                $width = 1140;
                $height = 641;
            } else {
                ### Right sidebar Video
                $width = 750;
                $height = 442;
            }
            ### meta title
            $meta .= '<meta name="title" content="' . get_wp_title_rss() . '">';
            ### meta description, keywords
            if (is_home() || is_front_page() || is_archive() || is_category()) {
                $meta .= '<meta name="description" content="' . get_bloginfo('description') . '">';
                $meta .= '<meta name="keywords" content="' . get_bloginfo('name') . '">';
            } elseif (get_post_type($post->ID) == 'video') {
                $meta .= '<meta name="description" content="' . mars_seo_limit_leng_titlewords(wp_filter_nohtml_kses($post_datas->post_content, 30)) . '">';
                $meta .= '<meta name="keywords" content="' . $this->wp_get_post_terms_string($post->ID, 'video_tag') . '">';
            } else {
                $meta .= '<meta name="description" content="' . mars_seo_limit_leng_titlewords(wp_filter_nohtml_kses($post_datas->post_content, 30)) . '">';
                $meta .= '<meta name="keywords" content="' . $this->wp_get_post_terms_string($post->ID, 'post_tag') . '">';
            }
            ### og tag.
            $meta .= '<meta property="og:site_name" content="' . get_wp_title_rss() . '">';
            if (is_home() && !is_front_page()) {
                $meta .= '<meta property="og:url" content="' . home_url() . '">';
                $meta .= '<meta property="og:title" content="' . get_bloginfo('name') . '">';
                $meta .= '<meta property="og:description" content="' . get_bloginfo('description') . '">';
            }
            if (is_archive()) {
                $meta .= '<meta property="og:url" content="' . get_post_type_archive_link(get_post_type()) . '">';
                $meta .= '<meta property="og:title" content="' . $wp_query->get_queried_object()->name . '">';
                $meta .= '<meta property="og:description" content="' . $wp_query->get_queried_object()->name . '">';
            }
            if (is_tax() || is_category() || is_tag()) {
                $meta .= '<meta property="og:url" content="' . get_term_link($wp_query->get_queried_object()->term_id, $wp_query->get_queried_object()->taxonomy) . '">';
                $meta .= '<meta property="og:title" content="' . $wp_query->get_queried_object()->name . '">';
                $meta .= '<meta property="og:description" content="' . $wp_query->get_queried_object()->name . '">';
            }
            if (is_single() || is_singular('video') || is_page()) {
                $meta .= '<meta property="og:url" content="' . get_permalink($post->ID) . '">';
                $meta .= '<meta property="og:title" content="' . $post_datas->post_title . '">';
                if (is_singular('video')) {
                    $meta .= '<meta property="og:type" content="video">';
                }
                if (has_post_thumbnail($post->ID)) {
                    $thumb_id = get_post_thumbnail_id($post->ID);
                    $thumb_url = wp_get_attachment_image_src($thumb_id, 'full', true);
                    $meta .= '<meta property="og:image" content="' . $thumb_url[0] . '">';
                }
                $meta .= '<meta property="og:description" content="' . $post_datas->post_title . '">';
                if (get_post_type($post->ID) == 'video') {
                    $video_file_url = wp_get_attachment_url(get_post_meta($post->ID, 'video_file', true));
                    if ($video_file_url) {
                        $meta .= '<meta property="og:video" content="' . $video_file_url . '">';
                    } else {
                        $meta .= '<meta property="og:video" content="' . get_permalink($post->ID) . '">';
                    }
                    $meta .= '
						<meta property="og:video:type" content="application/x-shockwave-flash">
						<meta property="og:video:width" content="' . $width . '">
						<meta property="og:video:height" content="' . $height . '">
					';
                }
            }
            print $meta;
        }

//.........这里部分代码省略.........
    if (!empty($Feed['itunes_image'])) {
        echo "\t" . '<itunes:image href="' . esc_html(str_replace(' ', '+', $Feed['itunes_image']), 'double') . '" />' . PHP_EOL;
    } else {
        echo "\t" . '<itunes:image href="' . powerpress_get_root_url() . 'itunes_default.jpg" />' . PHP_EOL;
    }
    if (!empty($Feed['email'])) {
        echo "\t" . '<itunes:owner>' . PHP_EOL;
        echo "\t\t" . '<itunes:name>' . esc_html($powerpress_feed['itunes_talent_name']) . '</itunes:name>' . PHP_EOL;
        echo "\t\t" . '<itunes:email>' . esc_html($Feed['email']) . '</itunes:email>' . PHP_EOL;
        echo "\t" . '</itunes:owner>' . PHP_EOL;
        echo "\t" . '<managingEditor>' . esc_html($Feed['email'] . ' (' . $powerpress_feed['itunes_talent_name'] . ')') . '</managingEditor>' . PHP_EOL;
    }
    if (!empty($Feed['copyright'])) {
        // In case the user entered the copyright html version or the copyright UTF-8 or ASCII symbol or just (c)
        $Feed['copyright'] = str_replace(array('&copy;', '(c)', '(C)', chr(194) . chr(169), chr(169)), '&#xA9;', $Feed['copyright']);
        echo "\t" . '<copyright>' . esc_html($Feed['copyright']) . '</copyright>' . PHP_EOL;
    }
    if (!empty($Feed['itunes_subtitle'])) {
        echo "\t" . '<itunes:subtitle>' . powerpress_format_itunes_value($Feed['itunes_subtitle'], 'subtitle') . '</itunes:subtitle>' . PHP_EOL;
    } else {
        echo "\t" . '<itunes:subtitle>' . powerpress_format_itunes_value(get_bloginfo('description'), 'subtitle') . '</itunes:subtitle>' . PHP_EOL;
    }
    if (!empty($Feed['rss2_image']) || !empty($Feed['itunes_image'])) {
        if (!empty($Feed['rss2_image'])) {
            // If the RSS image is set, use it, otherwise use the iTunes image...
            $rss_image = $Feed['rss2_image'];
        } else {
            $rss_image = $Feed['itunes_image'];
        }
        echo "\t" . '<image>' . PHP_EOL;
        if (is_category() && !empty($Feed['title'])) {
            echo "\t\t" . '<title>' . esc_html(get_bloginfo_rss('name')) . '</title>' . PHP_EOL;
        } else {
            echo "\t\t" . '<title>' . esc_html(get_bloginfo_rss('name') . get_wp_title_rss()) . '</title>' . PHP_EOL;
        }
        echo "\t\t" . '<url>' . esc_html(str_replace(' ', '+', $rss_image)) . '</url>' . PHP_EOL;
        echo "\t\t" . '<link>' . $Feed['url'] . '</link>' . PHP_EOL;
        echo "\t" . '</image>' . PHP_EOL;
    } else {
        echo "\t" . '<image>' . PHP_EOL;
        if ((is_category() || is_tax() || is_tag()) && !empty($Feed['title'])) {
            echo "\t\t" . '<title>' . esc_html(get_bloginfo_rss('name')) . '</title>' . PHP_EOL;
        } else {
            echo "\t\t" . '<title>' . esc_html(get_bloginfo_rss('name') . get_wp_title_rss()) . '</title>' . PHP_EOL;
        }
        echo "\t\t" . '<url>' . powerpress_get_root_url() . 'rss_default.jpg</url>' . PHP_EOL;
        echo "\t\t" . '<link>' . $Feed['url'] . '</link>' . PHP_EOL;
        echo "\t" . '</image>' . PHP_EOL;
    }
    // Handle iTunes categories
    $Categories = powerpress_itunes_categories();
    $Cat1 = false;
    $Cat2 = false;
    $Cat3 = false;
    if (!empty($Feed['itunes_cat_1'])) {
        list($Cat1, $SubCat1) = explode('-', $Feed['itunes_cat_1']);
    }
    if (!empty($Feed['itunes_cat_2'])) {
        list($Cat2, $SubCat2) = explode('-', $Feed['itunes_cat_2']);
    }
    if (!empty($Feed['itunes_cat_3'])) {
        list($Cat3, $SubCat3) = explode('-', $Feed['itunes_cat_3']);
    }
    if ($Cat1) {
        $CatDesc = $Categories[$Cat1 . '-00'];
        $SubCatDesc = $Categories[$Cat1 . '-' . $SubCat1];

function powerpress_load_general_feed_settings()
{
    global $wp_query;
    global $powerpress_feed;
    if ($powerpress_feed !== false) {
        $powerpress_feed = false;
        // Get the powerpress settings
        $GeneralSettings = get_option('powerpress_general');
        if (!isset($GeneralSettings['custom_feeds']['podcast'])) {
            $GeneralSettings['custom_feeds']['podcast'] = 'Podcast Feed';
        }
        // Fixes scenario where the user never configured the custom default podcast feed.
        if ($GeneralSettings) {
            $FeedSettingsBasic = get_option('powerpress_feed');
            // Get overall feed settings
            if (is_feed() && defined('WPCACHEHOME') && empty($GeneralSettings['allow_feed_comments'])) {
                global $wp_super_cache_comments;
                $wp_super_cache_comments = 0;
            }
            if (is_feed() && defined('W3TC') && empty($GeneralSettings['allow_feed_comments'])) {
                add_filter('w3tc_can_print_comment', 'powerpress_w3tc_can_print_comment', 10, 1);
            }
            // If we're in advanced mode and we're dealing with a category feed we're extending, lets work with it...
            if (is_category() && isset($GeneralSettings['custom_cat_feeds']) && is_array($GeneralSettings['custom_cat_feeds']) && in_array(get_query_var('cat'), $GeneralSettings['custom_cat_feeds'])) {
                $cat_ID = get_query_var('cat');
                $FeedCustom = get_option('powerpress_cat_feed_' . $cat_ID);
                // Get custom feed specific settings
                $Feed = powerpress_merge_empty_feed_settings($FeedCustom, $FeedSettingsBasic);
                $powerpress_feed = array();
                $powerpress_feed['is_custom'] = true;
                $powerpress_feed['category'] = $cat_ID;
                $powerpress_feed['process_podpress'] = !empty($GeneralSettings['process_podpress']);
                // Category feeds could originate from Podpress
                $powerpress_feed['rss_language'] = '';
                // default, let WordPress set the language
                $powerpress_feed['default_url'] = '';
                if (!empty($GeneralSettings['default_url'])) {
                    $powerpress_feed['default_url'] = rtrim($GeneralSettings['default_url'], '/') . '/';
                }
                $explicit_array = array("no", "yes", "clean");
                $powerpress_feed['explicit'] = $explicit_array[$Feed['itunes_explicit']];
                if (!empty($Feed['itunes_talent_name'])) {
                    $powerpress_feed['itunes_talent_name'] = $Feed['itunes_talent_name'];
                } else {
                    $powerpress_feed['itunes_talent_name'] = get_wp_title_rss();
                }
                $powerpress_feed['enhance_itunes_summary'] = $Feed['enhance_itunes_summary'];
                if (!empty($GeneralSettings['seo_itunes'])) {
                    $powerpress_feed['enhance_itunes_summary'] = 1;
                }
                $powerpress_feed['posts_per_rss'] = false;
                if (!empty($Feed['posts_per_rss']) && is_numeric($Feed['posts_per_rss']) && $Feed['posts_per_rss'] > 0) {
                    $powerpress_feed['posts_per_rss'] = $Feed['posts_per_rss'];
                }
                $powerpress_feed['feed_redirect_url'] = '';
                if (!empty($Feed['feed_redirect_url'])) {
                    $powerpress_feed['feed_redirect_url'] = $Feed['feed_redirect_url'];
                }
                if ($Feed['itunes_author_post'] == true) {
                    $powerpress_feed['itunes_author_post'] = true;
                }
                if ($Feed['rss_language'] != '') {
                    $powerpress_feed['rss_language'] = $Feed['rss_language'];
                }
                if (!empty($GeneralSettings['podcast_embed_in_feed'])) {
                    $powerpress_feed['podcast_embed_in_feed'] = true;
                }
                if (!empty($Feed['episode_itunes_image']) && !empty($Feed['itunes_image'])) {
                    $powerpress_feed['itunes_image'] = $Feed['itunes_image'];
                }
                return;
            } else {
                if ((defined('POWERPRESS_TAXONOMY_PODCASTING') || !empty($GeneralSettings['taxonomy_podcasting'])) && (is_tag() || is_tax())) {
                    // We need to get the term_id and the tax_id (tt_id)
                    $term_slug = get_query_var('term');
                    $taxonomy = get_query_var('taxonomy');
                    if (empty($term_slug) && empty($taxonomy)) {
                        $term_slug = get_query_var('tag');
                        if (!empty($term_slug)) {
                            $taxonomy = 'post_tag';
                        }
                    }
                    $term = false;
                    if (!empty($term_slug) && !empty($taxonomy)) {
                        $term = term_exists($term_slug, $taxonomy);
                    }
                    if (!empty($term['term_taxonomy_id'])) {
                        $FeedCustom = get_option('powerpress_taxonomy_' . $term['term_taxonomy_id']);
                        // Get custom feed specific settings
                        if ($FeedCustom) {
                            $Feed = powerpress_merge_empty_feed_settings($FeedCustom, $FeedSettingsBasic);
                            $powerpress_feed = array();
                            $powerpress_feed['is_custom'] = true;
                            $powerpress_feed['term_taxonomy_id'] = $term['term_taxonomy_id'];
                            $powerpress_feed['process_podpress'] = false;
                            // Taxonomy feeds will not originate from Podpress
                            $powerpress_feed['rss_language'] = '';
                            // default, let WordPress set the language
                            $powerpress_feed['default_url'] = rtrim($GeneralSettings['default_url'], '/') . '/';
                            $explicit_array = array("no", "yes", "clean");
//.........这里部分代码省略.........

/**
 * Displays Site Icon in RSS2.
 *
 * @since 4.3.0
 */
function rss2_site_icon()
{
    $rss_title = get_wp_title_rss();
    if (empty($rss_title)) {
        $rss_title = get_bloginfo_rss('name');
    }
    $url = get_site_icon_url(32);
    if ($url) {
        echo '
<image>
	<url>' . convert_chars($url) . '</url>
	<title>' . $rss_title . '</title>
	<link>' . get_bloginfo_rss('url') . '</link>
	<width>32</width>
	<height>32</height>
</image> ' . "\n";
    }
}