PHP Util::substr方法代码示例

 /**
  * Loads article previews for display with the portal index template
  */
 public function action_sportal_index()
 {
     global $context, $modSettings;
     // Showing articles on the index page?
     if (!empty($modSettings['sp_articles_index'])) {
         require_once SUBSDIR . '/PortalArticle.subs.php';
         $context['sub_template'] = 'portal_index';
         // Set up the pages
         $total_articles = sportal_get_articles_count();
         $total = min($total_articles, !empty($modSettings['sp_articles_index_total']) ? $modSettings['sp_articles_index_total'] : 20);
         $per_page = min($total, !empty($modSettings['sp_articles_index_per_page']) ? $modSettings['sp_articles_index_per_page'] : 5);
         $start = !empty($_REQUEST['articles']) ? (int) $_REQUEST['articles'] : 0;
         if ($total > $per_page) {
             $context['article_page_index'] = constructPageIndex($context['portal_url'] . '?articles=%1$d', $start, $total, $per_page, true);
         }
         // If we have some articles
         require_once SUBSDIR . '/PortalArticle.subs.php';
         $context['articles'] = sportal_get_articles(0, true, true, 'spa.id_article DESC', 0, $per_page, $start);
         foreach ($context['articles'] as $article) {
             if (empty($modSettings['sp_articles_length']) && ($cutoff = Util::strpos($article['body'], '[cutoff]')) !== false) {
                 $article['body'] = Util::substr($article['body'], 0, $cutoff);
                 if ($article['type'] === 'bbc') {
                     require_once SUBSDIR . '/Post.subs.php';
                     preparsecode($article['body']);
                 }
             }
             $context['articles'][$article['id']]['preview'] = sportal_parse_content($article['body'], $article['type'], 'return');
             $context['articles'][$article['id']]['date'] = htmlTime($article['date']);
             // Just want a shorter look on the index page
             if (!empty($modSettings['sp_articles_length'])) {
                 $context['articles'][$article['id']]['preview'] = Util::shorten_html($context['articles'][$article['id']]['preview'], $modSettings['sp_articles_length']);
             }
         }
     }
 }

 /**
  * Load all articles for selection
  */
 public function action_sportal_articles()
 {
     global $context, $scripturl, $txt, $modSettings;
     // Set up for pagination
     $total_articles = sportal_get_articles_count();
     $per_page = min($total_articles, !empty($modSettings['sp_articles_per_page']) ? $modSettings['sp_articles_per_page'] : 10);
     $start = !empty($_REQUEST['start']) ? (int) $_REQUEST['start'] : 0;
     if ($total_articles > $per_page) {
         $context['page_index'] = constructPageIndex($scripturl . '?action=portal;sa=articles;start=%1$d', $start, $total_articles, $per_page, true);
     }
     // Fetch the article page
     $context['articles'] = sportal_get_articles(0, true, true, 'spa.id_article DESC', 0, $per_page, $start);
     foreach ($context['articles'] as $article) {
         // Want to cut this one a bit short?
         if (($cutoff = Util::strpos($article['body'], '[cutoff]')) !== false) {
             $article['body'] = Util::substr($article['body'], 0, $cutoff);
             if ($article['type'] === 'bbc') {
                 require_once SUBSDIR . '/Post.subs.php';
                 preparsecode($article['body']);
             }
         }
         $context['articles'][$article['id']]['preview'] = sportal_parse_content($article['body'], $article['type'], 'return');
         $context['articles'][$article['id']]['date'] = htmlTime($article['date']);
     }
     $context['linktree'][] = array('url' => $scripturl . '?action=portal;sa=articles', 'name' => $txt['sp-articles']);
     $context['page_title'] = $txt['sp-articles'];
     $context['sub_template'] = 'view_articles';
 }

 /**
  * View a specific category, showing all articles it contains
  */
 public function action_sportal_category()
 {
     global $context, $scripturl, $modSettings;
     // Basic article support
     require_once SUBSDIR . '/PortalArticle.subs.php';
     $category_id = !empty($_REQUEST['category']) ? $_REQUEST['category'] : 0;
     if (is_int($category_id)) {
         $category_id = (int) $category_id;
     } else {
         $category_id = Util::htmlspecialchars($category_id, ENT_QUOTES);
     }
     $context['category'] = sportal_get_categories($category_id, true, true);
     if (empty($context['category']['id'])) {
         fatal_lang_error('error_sp_category_not_found', false);
     }
     // Set up the pages
     $total_articles = sportal_get_articles_in_cat_count($context['category']['id']);
     $per_page = min($total_articles, !empty($modSettings['sp_articles_per_page']) ? $modSettings['sp_articles_per_page'] : 10);
     $start = !empty($_REQUEST['start']) ? (int) $_REQUEST['start'] : 0;
     if ($total_articles > $per_page) {
         $context['page_index'] = constructPageIndex($context['category']['href'] . ';start=%1$d', $start, $total_articles, $per_page, true);
     }
     // Load the articles in this category
     $context['articles'] = sportal_get_articles(0, true, true, 'spa.id_article DESC', $context['category']['id'], $per_page, $start);
     foreach ($context['articles'] as $article) {
         // Cut me mick
         if (($cutoff = Util::strpos($article['body'], '[cutoff]')) !== false) {
             $article['body'] = Util::substr($article['body'], 0, $cutoff);
             if ($article['type'] === 'bbc') {
                 require_once SUBSDIR . '/Post.subs.php';
                 preparsecode($article['body']);
             }
         }
         $context['articles'][$article['id']]['preview'] = sportal_parse_content($article['body'], $article['type'], 'return');
         $context['articles'][$article['id']]['date'] = htmlTime($article['date']);
     }
     $context['linktree'][] = array('url' => $scripturl . '?category=' . $context['category']['category_id'], 'name' => $context['category']['name']);
     $context['page_title'] = $context['category']['name'];
     $context['sub_template'] = 'view_category';
 }

//.........这里部分代码省略.........
                    $context['polls'][] = array('id' => $row['id_poll'], 'topic' => array('id' => $row['id_topic'], 'subject' => $row['subject']), 'question' => $row['question'], 'selected' => $row['id_topic'] == $firstTopic);
                }
                $db->free_result($request);
            }
            if (count($boards) > 1) {
                foreach ($boards_info as $row) {
                    $context['boards'][] = array('id' => $row['id_board'], 'name' => $row['name'], 'selected' => $row['id_board'] == $topic_data[$firstTopic]['board']);
                }
            }
            $context['topics'] = $topic_data;
            foreach ($topic_data as $id => $topic) {
                $context['topics'][$id]['selected'] = $topic['id'] == $firstTopic;
            }
            $context['page_title'] = $txt['merge'];
            $context['sub_template'] = 'merge_extra_options';
            return;
        }
        // Determine target board.
        $target_board = count($boards) > 1 ? (int) $_REQUEST['board'] : $boards[0];
        if (!in_array($target_board, $boards)) {
            fatal_lang_error('no_board');
        }
        // Determine which poll will survive and which polls won't.
        $target_poll = count($polls) > 1 ? (int) $_POST['poll'] : (count($polls) == 1 ? $polls[0] : 0);
        if ($target_poll > 0 && !in_array($target_poll, $polls)) {
            fatal_lang_error('no_access', false);
        }
        $deleted_polls = empty($target_poll) ? $polls : array_diff($polls, array($target_poll));
        // Determine the subject of the newly merged topic - was a custom subject specified?
        if (empty($_POST['subject']) && isset($_POST['custom_subject']) && $_POST['custom_subject'] != '') {
            $target_subject = strtr(Util::htmltrim(Util::htmlspecialchars($_POST['custom_subject'])), array("\r" => '', "\n" => '', "\t" => ''));
            // Keep checking the length.
            if (Util::strlen($target_subject) > 100) {
                $target_subject = Util::substr($target_subject, 0, 100);
            }
            // Nothing left - odd but pick the first topics subject.
            if ($target_subject == '') {
                $target_subject = $topic_data[$firstTopic]['subject'];
            }
        } elseif (!empty($topic_data[(int) $_POST['subject']]['subject'])) {
            $target_subject = $topic_data[(int) $_POST['subject']]['subject'];
        } else {
            $target_subject = $topic_data[$firstTopic]['subject'];
        }
        // Get the first and last message and the number of messages....
        $request = $db->query('', '
			SELECT approved, MIN(id_msg) AS first_msg, MAX(id_msg) AS last_msg, COUNT(*) AS message_count
			FROM {db_prefix}messages
			WHERE id_topic IN ({array_int:topics})
			GROUP BY approved
			ORDER BY approved DESC', array('topics' => $topics));
        $topic_approved = 1;
        $first_msg = 0;
        while ($row = $db->fetch_assoc($request)) {
            // If this is approved, or is fully unapproved.
            if ($row['approved'] || !isset($first_msg)) {
                $first_msg = $row['first_msg'];
                $last_msg = $row['last_msg'];
                if ($row['approved']) {
                    $num_replies = $row['message_count'] - 1;
                    $num_unapproved = 0;
                } else {
                    $topic_approved = 0;
                    $num_replies = 0;
                    $num_unapproved = $row['message_count'];
                }

/**
 * Display a monthly calendar grid.
 *
 * @param string $grid_name
 */
function template_show_month_grid($grid_name)
{
    global $context, $settings, $txt, $scripturl, $modSettings;
    if (!isset($context['calendar_grid_' . $grid_name])) {
        return false;
    }
    $calendar_data =& $context['calendar_grid_' . $grid_name];
    if (empty($calendar_data['disable_title'])) {
        echo '
				<h2 class="category_header">';
        if (empty($calendar_data['previous_calendar']['disabled']) && $calendar_data['show_next_prev']) {
            echo '
					<a href="', $calendar_data['previous_calendar']['href'], '" class="previous_month">
						<span class="fa-stack"><i class="fa fa-circle-thin fa-stack-2x"></i><i class="fa fa-chevron-left fa-stack-1x"></i></span>
					</a>';
        }
        if (empty($calendar_data['next_calendar']['disabled']) && $calendar_data['show_next_prev']) {
            echo '
					<a href="', $calendar_data['next_calendar']['href'], '" class="next_month">
						<span class="fa-stack"><i class="fa fa-circle-thin fa-stack-2x"></i><i class="fa fa-chevron-right fa-stack-1x"></i></span>
					</a>';
        }
        if ($calendar_data['show_next_prev']) {
            echo '
					', $txt['months_titles'][$calendar_data['current_month']], ' ', $calendar_data['current_year'];
        } else {
            echo '
					<a href="', $scripturl, '?action=calendar;year=', $calendar_data['current_year'], ';month=', $calendar_data['current_month'], '">
						<i class="fa fa-calendar-o"></i> ', $txt['months_titles'][$calendar_data['current_month']], ' ', $calendar_data['current_year'], '
					</a>';
        }
        echo '
				</h2>';
    }
    // Show the sidebar months
    echo '
				<table class="calendar_table">';
    // Show each day of the week.
    if (empty($calendar_data['disable_day_titles'])) {
        echo '
					<tr class="table_head">';
        if (!empty($calendar_data['show_week_links'])) {
            echo '
						<th>&nbsp;</th>';
        }
        foreach ($calendar_data['week_days'] as $day) {
            echo '
						<th scope="col" class="days">', !empty($calendar_data['short_day_titles']) ? Util::substr($txt['days'][$day], 0, 1) : $txt['days'][$day], '</th>';
        }
        echo '
					</tr>';
    }
    // Each week in weeks contains the following:
    // days (a list of days), number (week # in the year.)
    foreach ($calendar_data['weeks'] as $week) {
        echo '
					<tr>';
        if (!empty($calendar_data['show_week_links'])) {
            echo '
						<td class="windowbg2 weeks">
							<a href="', $scripturl, '?action=calendar;viewweek;year=', $calendar_data['current_year'], ';month=', $calendar_data['current_month'], ';day=', $week['days'][0]['day'], '"><i class="fa fa-angle-double-right fa-lg"></i></a>
						</td>';
        }
        // Every day has the following:
        // day (# in month), is_today (is this day *today*?), is_first_day (first day of the week?),
        // holidays, events, birthdays. (last three are lists.)
        foreach ($week['days'] as $day) {
            // If this is today, make it a different color and show a border.
            echo '
						<td class="', $day['is_today'] ? 'calendar_today' : 'windowbg', ' days">';
            // Skip it if it should be blank - it's not a day if it has no number.
            if (!empty($day['day'])) {
                // Should the day number be a link?
                if (!empty($modSettings['cal_daysaslink']) && $context['can_post']) {
                    echo '
							<a href="', $scripturl, '?action=calendar;sa=post;month=', $calendar_data['current_month'], ';year=', $calendar_data['current_year'], ';day=', $day['day'], ';', $context['session_var'], '=', $context['session_id'], '">', $day['day'], '</a>';
                } else {
                    echo '
							', $day['day'];
                }
                // Is this the first day of the week? (and are we showing week numbers?)
                if ($day['is_first_day'] && $calendar_data['size'] != 'small') {
                    echo ' - <a href="', $scripturl, '?action=calendar;viewweek;year=', $calendar_data['current_year'], ';month=', $calendar_data['current_month'], ';day=', $day['day'], '">', $txt['calendar_week'], ' ', $week['number'], '</a>';
                }
                // Are there any holidays?
                if (!empty($day['holidays'])) {
                    echo '
							<div class="holiday">', $txt['calendar_prompt'], ' ', implode(', ', $day['holidays']), '</div>';
                }
                // Show any birthdays...
                if (!empty($day['birthdays'])) {
                    echo '
							<div>
								<span class="birthday">', $txt['birthdays'], '</span>';
                    // Each of the birthdays has:
//.........这里部分代码省略.........

/**
 * Recent topic list:
 *  [board] Subject by Poster Date
 *
 * @param int $num_recent
 * @param int[]|null $exclude_boards
 * @param bool|null $include_boards
 * @param string $output_method = 'echo'
 */
function ssi_recentTopics($num_recent = 8, $exclude_boards = null, $include_boards = null, $output_method = 'echo')
{
    global $settings, $scripturl, $txt, $user_info, $modSettings;
    $db = database();
    if ($exclude_boards === null && !empty($modSettings['recycle_enable']) && $modSettings['recycle_board'] > 0) {
        $exclude_boards = array($modSettings['recycle_board']);
    } else {
        $exclude_boards = empty($exclude_boards) ? array() : (is_array($exclude_boards) ? $exclude_boards : array($exclude_boards));
    }
    // Only some boards?.
    if (is_array($include_boards) || (int) $include_boards === $include_boards) {
        $include_boards = is_array($include_boards) ? $include_boards : array($include_boards);
    } elseif ($include_boards != null) {
        $output_method = $include_boards;
        $include_boards = array();
    }
    require_once SUBSDIR . '/MessageIndex.subs.php';
    $icon_sources = MessageTopicIcons();
    // Find all the posts in distinct topics. Newer ones will have higher IDs.
    $request = $db->query('', '
		SELECT
			t.id_topic, b.id_board, b.name AS board_name
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
			LEFT JOIN {db_prefix}boards AS b ON (b.id_board = t.id_board)
		WHERE t.id_last_msg >= {int:min_message_id}' . (empty($exclude_boards) ? '' : '
			AND b.id_board NOT IN ({array_int:exclude_boards})') . '' . (empty($include_boards) ? '' : '
			AND b.id_board IN ({array_int:include_boards})') . '
			AND {query_wanna_see_board}' . ($modSettings['postmod_active'] ? '
			AND t.approved = {int:is_approved}
			AND ml.approved = {int:is_approved}' : '') . '
		ORDER BY t.id_last_msg DESC
		LIMIT ' . $num_recent, array('include_boards' => empty($include_boards) ? '' : $include_boards, 'exclude_boards' => empty($exclude_boards) ? '' : $exclude_boards, 'min_message_id' => $modSettings['maxMsgID'] - 35 * min($num_recent, 5), 'is_approved' => 1));
    $topics = array();
    while ($row = $db->fetch_assoc($request)) {
        $topics[$row['id_topic']] = $row;
    }
    $db->free_result($request);
    // Did we find anything? If not, bail.
    if (empty($topics)) {
        return array();
    }
    // Find all the posts in distinct topics. Newer ones will have higher IDs.
    $request = $db->query('substring', '
		SELECT
			mf.poster_time, mf.subject, ml.id_topic, mf.id_member, ml.id_msg, t.num_replies, t.num_views, mg.online_color,
			IFNULL(mem.real_name, mf.poster_name) AS poster_name, ' . ($user_info['is_guest'] ? '1 AS is_read, 0 AS new_from' : '
			IFNULL(lt.id_msg, IFNULL(lmr.id_msg, 0)) >= ml.id_msg_modified AS is_read,
			IFNULL(lt.id_msg, IFNULL(lmr.id_msg, -1)) + 1 AS new_from') . ', SUBSTRING(mf.body, 1, 384) AS body, mf.smileys_enabled, mf.icon
		FROM {db_prefix}topics AS t
			INNER JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
			INNER JOIN {db_prefix}messages AS mf ON (mf.id_msg = t.id_last_msg)
			LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = mf.id_member)' . (!$user_info['is_guest'] ? '
			LEFT JOIN {db_prefix}log_topics AS lt ON (lt.id_topic = t.id_topic AND lt.id_member = {int:current_member})
			LEFT JOIN {db_prefix}log_mark_read AS lmr ON (lmr.id_board = t.id_board AND lmr.id_member = {int:current_member})' : '') . '
			LEFT JOIN {db_prefix}membergroups AS mg ON (mg.id_group = mem.id_group)
		WHERE t.id_topic IN ({array_int:topic_list})', array('current_member' => $user_info['id'], 'topic_list' => array_keys($topics)));
    $posts = array();
    while ($row = $db->fetch_assoc($request)) {
        $row['body'] = strip_tags(strtr(parse_bbc($row['body'], $row['smileys_enabled'], $row['id_msg']), array('<br />' => '&#10;')));
        if (Util::strlen($row['body']) > 128) {
            $row['body'] = Util::substr($row['body'], 0, 128) . '...';
        }
        // Censor the subject.
        censorText($row['subject']);
        censorText($row['body']);
        if (!empty($modSettings['messageIconChecks_enable']) && !isset($icon_sources[$row['icon']])) {
            $icon_sources[$row['icon']] = file_exists($settings['theme_dir'] . '/images/post/' . $row['icon'] . '.png') ? 'images_url' : 'default_images_url';
        }
        // Build the array.
        $posts[] = array('board' => array('id' => $topics[$row['id_topic']]['id_board'], 'name' => $topics[$row['id_topic']]['board_name'], 'href' => $scripturl . '?board=' . $topics[$row['id_topic']]['id_board'] . '.0', 'link' => '<a href="' . $scripturl . '?board=' . $topics[$row['id_topic']]['id_board'] . '.0">' . $topics[$row['id_topic']]['board_name'] . '</a>'), 'topic' => $row['id_topic'], 'poster' => array('id' => $row['id_member'], 'name' => $row['poster_name'], 'href' => empty($row['id_member']) ? '' : $scripturl . '?action=profile;u=' . $row['id_member'], 'link' => empty($row['id_member']) ? $row['poster_name'] : '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['poster_name'] . '</a>'), 'subject' => $row['subject'], 'replies' => $row['num_replies'], 'views' => $row['num_views'], 'short_subject' => Util::shorten_text($row['subject'], 25), 'preview' => $row['body'], 'time' => standardTime($row['poster_time']), 'html_time' => htmlTime($row['poster_time']), 'timestamp' => forum_time(true, $row['poster_time']), 'href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . ';topicseen#new', 'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['id_msg'] . '#new" rel="nofollow">' . $row['subject'] . '</a>', 'new' => !empty($row['is_read']), 'is_new' => empty($row['is_read']), 'new_from' => $row['new_from'], 'icon' => '<img src="' . $settings[$icon_sources[$row['icon']]] . '/post/' . $row['icon'] . '.png" style="vertical-align: middle;" alt="' . $row['icon'] . '" />');
    }
    $db->free_result($request);
    // Just return it.
    if ($output_method != 'echo' || empty($posts)) {
        return $posts;
    }
    echo '
		<table class="ssi_table">';
    foreach ($posts as $post) {
        echo '
			<tr>
				<td class="righttext top">
					[', $post['board']['link'], ']
				</td>
				<td class="top">
					<a href="', $post['href'], '">', $post['subject'], '</a>
					', $txt['by'], ' ', $post['poster']['link'], '
					', !$post['is_new'] ? '' : '<a href="' . $scripturl . '?topic=' . $post['topic'] . '.msg' . $post['new_from'] . ';topicseen#new" rel="nofollow"><span class="new_posts">' . $txt['new'] . '</span></a>', '
				</td>
				<td class="righttext">
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		LIMIT 2', array('msg_list' => $splitMessages, 'id_topic' => $split1_ID_TOPIC));
    while ($row = $db->fetch_assoc($request)) {
        // As before get the right first and last message dependant on approved state...
        if (empty($split2_first_msg) || $row['myid_first_msg'] < $split2_first_msg) {
            $split2_first_msg = $row['myid_first_msg'];
        }
        if (empty($split2_last_msg) || $row['approved']) {
            $split2_last_msg = $row['myid_last_msg'];
        }
        // Then do the counts again...
        if ($row['approved']) {
            $split2_approved = true;
            $split2_replies = $row['message_count'] - 1;
            $split2_unapprovedposts = 0;
        } else {
            // Should this one be approved??
            if ($split2_first_msg == $row['myid_first_msg']) {
                $split2_approved = false;
            }
            if (!isset($split2_replies)) {
                $split2_replies = 0;
            } elseif (!$split2_approved) {
                $split2_replies++;
            }
            $split2_unapprovedposts = $row['message_count'];
        }
    }
    $db->free_result($request);
    $split2_firstMem = getMsgMemberID($split2_first_msg);
    $split2_lastMem = getMsgMemberID($split2_last_msg);
    // No database changes yet, so let's double check to see if everything makes at least a little sense.
    if ($split1_first_msg <= 0 || $split1_last_msg <= 0 || $split2_first_msg <= 0 || $split2_last_msg <= 0 || $split1_replies < 0 || $split2_replies < 0 || $split1_unapprovedposts < 0 || $split2_unapprovedposts < 0 || !isset($split1_approved) || !isset($split2_approved)) {
        fatal_lang_error('cant_find_messages');
    }
    // You cannot split off the first message of a topic.
    if ($split1_first_msg > $split2_first_msg) {
        fatal_lang_error('split_first_post', false);
    }
    // We're off to insert the new topic!  Use 0 for now to avoid UNIQUE errors.
    $db->insert('', '{db_prefix}topics', array('id_board' => 'int', 'id_member_started' => 'int', 'id_member_updated' => 'int', 'id_first_msg' => 'int', 'id_last_msg' => 'int', 'num_replies' => 'int', 'unapproved_posts' => 'int', 'approved' => 'int', 'is_sticky' => 'int'), array((int) $id_board, $split2_firstMem, $split2_lastMem, 0, 0, $split2_replies, $split2_unapprovedposts, (int) $split2_approved, 0), array('id_topic'));
    $split2_ID_TOPIC = $db->insert_id('{db_prefix}topics', 'id_topic');
    if ($split2_ID_TOPIC <= 0) {
        fatal_lang_error('cant_insert_topic');
    }
    // Move the messages over to the other topic.
    $new_subject = strtr(Util::htmltrim(Util::htmlspecialchars($new_subject)), array("\r" => '', "\n" => '', "\t" => ''));
    // Check the subject length.
    if (Util::strlen($new_subject) > 100) {
        $new_subject = Util::substr($new_subject, 0, 100);
    }
    // Valid subject?
    if ($new_subject != '') {
        $db->query('', '
			UPDATE {db_prefix}messages
			SET
				id_topic = {int:id_topic},
				subject = CASE WHEN id_msg = {int:split_first_msg} THEN {string:new_subject} ELSE {string:new_subject_replies} END
			WHERE id_msg IN ({array_int:split_msgs})', array('split_msgs' => $splitMessages, 'id_topic' => $split2_ID_TOPIC, 'new_subject' => $new_subject, 'split_first_msg' => $split2_first_msg, 'new_subject_replies' => $txt['response_prefix'] . $new_subject));
        // Cache the new topics subject... we can do it now as all the subjects are the same!
        updateStats('subject', $split2_ID_TOPIC, $new_subject);
    }
    // Any associated reported posts better follow...
    require_once SUBSDIR . '/Topic.subs.php';
    updateSplitTopics(array('splitMessages' => $splitMessages, 'split2_ID_TOPIC' => $split2_ID_TOPIC, 'split1_replies' => $split1_replies, 'split1_first_msg' => $split1_first_msg, 'split1_last_msg' => $split1_last_msg, 'split1_firstMem' => $split1_firstMem, 'split1_lastMem' => $split1_lastMem, 'split1_unapprovedposts' => $split1_unapprovedposts, 'split1_ID_TOPIC' => $split1_ID_TOPIC, 'split2_first_msg' => $split2_first_msg, 'split2_last_msg' => $split2_last_msg, 'split2_ID_TOPIC' => $split2_ID_TOPIC, 'split2_approved' => $split2_approved), $id_board);
    require_once SUBSDIR . '/FollowUps.subs.php';
    // Let's see if we can create a stronger bridge between the two topics
    // @todo not sure what message from the oldest topic I should link to the new one, so I'll go with the first
    linkMessages($split1_first_msg, $split2_ID_TOPIC);
    // Copy log topic entries.
    // @todo This should really be chunked.
    $request = $db->query('', '
		SELECT id_member, id_msg, unwatched
		FROM {db_prefix}log_topics
		WHERE id_topic = {int:id_topic}', array('id_topic' => (int) $split1_ID_TOPIC));
    if ($db->num_rows($request) > 0) {
        $replaceEntries = array();
        while ($row = $db->fetch_assoc($request)) {
            $replaceEntries[] = array($row['id_member'], $split2_ID_TOPIC, $row['id_msg'], $row['unwatched']);
        }
        require_once SUBSDIR . '/Topic.subs.php';
        markTopicsRead($replaceEntries, false);
        unset($replaceEntries);
    }
    $db->free_result($request);
    // Housekeeping.
    updateTopicStats();
    updateLastMessages($id_board);
    logAction('split', array('topic' => $split1_ID_TOPIC, 'new_topic' => $split2_ID_TOPIC, 'board' => $id_board));
    // Notify people that this topic has been split?
    require_once SUBSDIR . '/Notification.subs.php';
    sendNotifications($split1_ID_TOPIC, 'split');
    // If there's a search index that needs updating, update it...
    require_once SUBSDIR . '/Search.subs.php';
    $searchAPI = findSearchAPI();
    if (is_callable(array($searchAPI, 'topicSplit'))) {
        $searchAPI->topicSplit($split2_ID_TOPIC, $splitMessages);
    }
    // Return the ID of the newly created topic.
    return $split2_ID_TOPIC;
}

/**
 * Save any changes to the custom profile fields
 *
 * @param int $memID
 * @param string $area
 * @param bool $sanitize = true
 */
function makeCustomFieldChanges($memID, $area, $sanitize = true)
{
    global $context, $user_profile, $user_info, $modSettings;
    $db = database();
    if ($sanitize && isset($_POST['customfield'])) {
        $_POST['customfield'] = htmlspecialchars__recursive($_POST['customfield']);
    }
    $where = $area == 'register' ? 'show_reg != 0' : 'show_profile = {string:area}';
    // Load the fields we are saving too - make sure we save valid data (etc).
    $request = $db->query('', '
		SELECT col_name, field_name, field_desc, field_type, field_length, field_options, default_value, show_reg, mask, private
		FROM {db_prefix}custom_fields
		WHERE ' . $where . '
			AND active = {int:is_active}', array('is_active' => 1, 'area' => $area));
    $changes = array();
    $log_changes = array();
    while ($row = $db->fetch_assoc($request)) {
        /* This means don't save if:
        			- The user is NOT an admin.
        			- The data is not freely viewable and editable by users.
        			- The data is not invisible to users but editable by the owner (or if it is the user is not the owner)
        			- The area isn't registration, and if it is that the field is not suppossed to be shown there.
        		*/
        if ($row['private'] != 0 && !allowedTo('admin_forum') && ($memID != $user_info['id'] || $row['private'] != 2) && ($area != 'register' || $row['show_reg'] == 0)) {
            continue;
        }
        // Validate the user data.
        if ($row['field_type'] == 'check') {
            $value = isset($_POST['customfield'][$row['col_name']]) ? 1 : 0;
        } elseif ($row['field_type'] == 'select' || $row['field_type'] == 'radio') {
            $value = $row['default_value'];
            foreach (explode(',', $row['field_options']) as $k => $v) {
                if (isset($_POST['customfield'][$row['col_name']]) && $_POST['customfield'][$row['col_name']] == $k) {
                    $value = $v;
                }
            }
        } else {
            $value = isset($_POST['customfield'][$row['col_name']]) ? $_POST['customfield'][$row['col_name']] : '';
            if ($row['field_length']) {
                $value = Util::substr($value, 0, $row['field_length']);
            }
            // Any masks?
            if ($row['field_type'] == 'text' && !empty($row['mask']) && $row['mask'] != 'none') {
                // @todo We never error on this - just ignore it at the moment...
                if ($row['mask'] == 'email' && (preg_match('~^[0-9A-Za-z=_+\\-/][0-9A-Za-z=_\'+\\-/\\.]*@[\\w\\-]+(\\.[\\w\\-]+)*(\\.[\\w]{2,6})$~', $value) === 0 || strlen($value) > 255)) {
                    $value = '';
                } elseif ($row['mask'] == 'number') {
                    $value = (int) $value;
                } elseif (substr($row['mask'], 0, 5) == 'regex' && trim($value) != '' && preg_match(substr($row['mask'], 5), $value) === 0) {
                    $value = '';
                }
            }
        }
        // Did it change?
        if (!isset($user_profile[$memID]['options'][$row['col_name']]) || $user_profile[$memID]['options'][$row['col_name']] !== $value) {
            $log_changes[] = array('action' => 'customfield_' . $row['col_name'], 'log_type' => 'user', 'extra' => array('previous' => !empty($user_profile[$memID]['options'][$row['col_name']]) ? $user_profile[$memID]['options'][$row['col_name']] : '', 'new' => $value, 'applicator' => $user_info['id'], 'member_affected' => $memID));
            $changes[] = array($row['col_name'], $value, $memID);
            $user_profile[$memID]['options'][$row['col_name']] = $value;
        }
    }
    $db->free_result($request);
    call_integration_hook('integrate_save_custom_profile_fields', array(&$changes, &$log_changes, $memID, $area, $sanitize));
    // Make those changes!
    if (!empty($changes) && empty($context['password_auth_failed'])) {
        $db->insert('replace', '{db_prefix}custom_fields_data', array('variable' => 'string-255', 'value' => 'string-65534', 'id_member' => 'int'), $changes, array('variable', 'id_member'));
        if (!empty($log_changes) && !empty($modSettings['modlog_enabled'])) {
            logActions($log_changes);
        }
    }
}

/**
 * Create a new topic by email
 *
 * What it does:
 * - Called by pbe_topic to create a new topic or by pbe_main to create a new topic via a subject change
 * - checks posting permissions, but requires all email validation checks are complete
 * - Calls pbe_load_text to prepare text for the post
 * - Uses createPost to do the actual "posting"
 * - Calls sendNotifications to announce the new post
 * - Calls query_update_member_stats to show they did something
 * - Requires the pbe, email_message and board_info arrays to be populated.
 *
 * @package Maillist
 * @param mixed[] $pbe array of pbe 'user_info' values
 * @param Email_Parse $email_message
 * @param mixed[] $board_info
 */
function pbe_create_topic($pbe, $email_message, $board_info)
{
    global $txt, $modSettings;
    // It does not work like that
    if (empty($pbe) || empty($email_message)) {
        return false;
    }
    // We have the board info, and their permissions - do they have a right to start a new topic?
    $becomesApproved = true;
    if (!$pbe['user_info']['is_admin']) {
        if (!in_array('postby_email', $pbe['user_info']['permissions'])) {
            return pbe_emailError('error_permission', $email_message);
        } elseif ($modSettings['postmod_active'] && in_array('post_unapproved_topics', $pbe['user_info']['permissions']) && !in_array('post_new', $pbe['user_info']['permissions'])) {
            $becomesApproved = false;
        } elseif (!in_array('post_new', $pbe['user_info']['permissions'])) {
            return pbe_emailError('error_cant_start', $email_message);
        }
    }
    // Approving all new topics by email anyway, smart admin this one is ;)
    if (!empty($modSettings['maillist_newtopic_needsapproval'])) {
        $becomesApproved = false;
    }
    // First on the agenda the subject
    $subject = pbe_clean_email_subject($email_message->subject);
    $subject = strtr(Util::htmlspecialchars($subject), array("\r" => '', "\n" => '', "\t" => ''));
    // Not to long not to short
    if (Util::strlen($subject) > 100) {
        $subject = Util::substr($subject, 0, 100);
    } elseif ($subject == '') {
        return pbe_emailError('error_no_subject', $email_message);
    }
    // The message itself will need a bit of work
    $html = $email_message->html_found;
    $text = pbe_load_text($html, $email_message, $pbe);
    if (empty($text)) {
        return pbe_emailError('error_no_message', $email_message);
    }
    // Build the attachment array if needed
    if (!empty($email_message->attachments) && !empty($modSettings['maillist_allow_attachments']) && !empty($modSettings['attachmentEnable']) && $modSettings['attachmentEnable'] == 1) {
        if ($modSettings['postmod_active'] && in_array('post_unapproved_attachments', $pbe['user_info']['permissions']) || in_array('post_attachment', $pbe['user_info']['permissions'])) {
            $attachIDs = pbe_email_attachments($pbe, $email_message);
        } else {
            $text .= "\n\n" . $txt['error_no_attach'] . "\n";
        }
    }
    // If we get to this point ... then its time to play, lets start a topic !
    require_once SUBSDIR . '/Post.subs.php';
    // Setup the topic variables.
    $msgOptions = array('id' => 0, 'subject' => $subject, 'smileys_enabled' => true, 'body' => $text, 'attachments' => empty($attachIDs) ? array() : $attachIDs, 'approved' => $becomesApproved);
    $topicOptions = array('id' => 0, 'board' => $board_info['id_board'], 'mark_as_read' => false);
    $posterOptions = array('id' => $pbe['profile']['id_member'], 'name' => $pbe['profile']['real_name'], 'email' => $pbe['profile']['email_address'], 'update_post_count' => empty($board_info['count_posts']), 'ip' => isset($email_message->ip) ? $email_message->ip : $pbe['profile']['member_ip']);
    // Attempt to make the new topic.
    createPost($msgOptions, $topicOptions, $posterOptions);
    // The auto_notify setting
    $theme_settings = query_get_theme($pbe['profile']['id_member'], $pbe['profile']['id_theme'], $board_info);
    $auto_notify = isset($theme_settings['auto_notify']) ? $theme_settings['auto_notify'] : 0;
    // Notifications on or off
    query_notifications($pbe['profile']['id_member'], $board_info['id_board'], $topicOptions['id'], $auto_notify, $pbe['user_info']['permissions']);
    // Notify members who have notification turned on for this, (if it's approved)
    if ($becomesApproved) {
        require_once SUBSDIR . '/Notification.subs.php';
        sendNotifications($topicOptions['id'], 'reply', array(), array(), $pbe);
    }
    // Update this users info so the log shows them as active
    query_update_member_stats($pbe, $email_message, $topicOptions);
    return true;
}

 /**
  * This function processes posting/editing/deleting a calendar event.
  *
  *  - calls action_post() function if event is linked to a post.
  *  - calls insertEvent() to insert the event if not linked to post.
  *
  * It requires the calendar_post permission to use.
  * It uses the event_post sub template in the Calendar template.
  * It is accessed with ?action=calendar;sa=post.
  */
 public function action_post()
 {
     global $context, $txt, $user_info, $scripturl, $modSettings, $topic;
     // You need to view what you're doing :P
     isAllowedTo('calendar_view');
     // Well - can they post?
     isAllowedTo('calendar_post');
     // We need this for all kinds of useful functions.
     require_once SUBSDIR . '/Calendar.subs.php';
     // Cast this for safety...
     $event_id = isset($_REQUEST['eventid']) ? (int) $_REQUEST['eventid'] : null;
     // Submitting?
     if (isset($_POST[$context['session_var']], $event_id)) {
         checkSession();
         // Validate the post...
         if (!isset($_POST['link_to_board'])) {
             validateEventPost();
         }
         // If you're not allowed to edit any events, you have to be the poster.
         if ($event_id > 0 && !allowedTo('calendar_edit_any')) {
             isAllowedTo('calendar_edit_' . (!empty($user_info['id']) && getEventPoster($event_id) == $user_info['id'] ? 'own' : 'any'));
         }
         // New - and directing?
         if ($event_id == -1 && isset($_POST['link_to_board'])) {
             $_REQUEST['calendar'] = 1;
             require_once CONTROLLERDIR . '/Post.controller.php';
             $controller = new Post_Controller();
             return $controller->action_post();
         } elseif ($event_id == -1) {
             $eventOptions = array('id_board' => 0, 'id_topic' => 0, 'title' => Util::substr($_REQUEST['evtitle'], 0, 100), 'member' => $user_info['id'], 'start_date' => sprintf('%04d-%02d-%02d', $_POST['year'], $_POST['month'], $_POST['day']), 'span' => isset($_POST['span']) && $_POST['span'] > 0 ? min((int) $modSettings['cal_maxspan'], (int) $_POST['span'] - 1) : 0);
             insertEvent($eventOptions);
         } elseif (isset($_REQUEST['deleteevent'])) {
             removeEvent($event_id);
         } else {
             // There could be already a topic you are not allowed to modify
             if (!allowedTo('post_new') && empty($modSettings['disableNoPostingCalendarEdits'])) {
                 $eventProperties = getEventProperties($event_id, true);
             }
             $eventOptions = array('title' => Util::substr($_REQUEST['evtitle'], 0, 100), 'span' => empty($modSettings['cal_allowspan']) || empty($_POST['span']) || $_POST['span'] == 1 || empty($modSettings['cal_maxspan']) || $_POST['span'] > $modSettings['cal_maxspan'] ? 0 : min((int) $modSettings['cal_maxspan'], (int) $_POST['span'] - 1), 'start_date' => strftime('%Y-%m-%d', mktime(0, 0, 0, (int) $_REQUEST['month'], (int) $_REQUEST['day'], (int) $_REQUEST['year'])), 'id_board' => isset($eventProperties['id_board']) ? (int) $eventProperties['id_board'] : 0, 'id_topic' => isset($eventProperties['id_topic']) ? (int) $eventProperties['id_topic'] : 0);
             modifyEvent($event_id, $eventOptions);
         }
         // No point hanging around here now...
         redirectexit($scripturl . '?action=calendar;month=' . $_POST['month'] . ';year=' . $_POST['year']);
     }
     // If we are not enabled... we are not enabled.
     if (empty($modSettings['cal_allow_unlinked']) && empty($event_id)) {
         $_REQUEST['calendar'] = 1;
         require_once CONTROLLERDIR . '/Post.controller.php';
         $controller = new Post_Controller();
         return $controller->action_post();
     }
     // New?
     if (!isset($event_id)) {
         $today = getdate();
         $context['event'] = array('boards' => array(), 'board' => 0, 'new' => 1, 'eventid' => -1, 'year' => isset($_REQUEST['year']) ? $_REQUEST['year'] : $today['year'], 'month' => isset($_REQUEST['month']) ? $_REQUEST['month'] : $today['mon'], 'day' => isset($_REQUEST['day']) ? $_REQUEST['day'] : $today['mday'], 'title' => '', 'span' => 1);
         $context['event']['last_day'] = (int) strftime('%d', mktime(0, 0, 0, $context['event']['month'] == 12 ? 1 : $context['event']['month'] + 1, 0, $context['event']['month'] == 12 ? $context['event']['year'] + 1 : $context['event']['year']));
         // Get list of boards that can be posted in.
         $boards = boardsAllowedTo('post_new');
         if (empty($boards)) {
             fatal_lang_error('cannot_post_new', 'permission');
         }
         // Load the list of boards and categories in the context.
         require_once SUBSDIR . '/Boards.subs.php';
         $boardListOptions = array('included_boards' => in_array(0, $boards) ? null : $boards, 'not_redirection' => true, 'selected_board' => $modSettings['cal_defaultboard']);
         $context += getBoardList($boardListOptions);
     } else {
         // Reload the event after making changes
         $context['event'] = getEventProperties($event_id);
         if ($context['event'] === false) {
             fatal_lang_error('no_access', false);
         }
         // If it has a board, then they should be editing it within the topic.
         if (!empty($context['event']['topic']['id']) && !empty($context['event']['topic']['first_msg'])) {
             // We load the board up, for a check on the board access rights...
             $topic = $context['event']['topic']['id'];
             loadBoard();
         }
         // Make sure the user is allowed to edit this event.
         if ($context['event']['member'] != $user_info['id']) {
             isAllowedTo('calendar_edit_any');
         } elseif (!allowedTo('calendar_edit_any')) {
             isAllowedTo('calendar_edit_own');
         }
     }
     // Template, sub template, etc.
     loadTemplate('Calendar');
     $context['sub_template'] = 'unlinked_event_post';
     $context['page_title'] = isset($event_id) ? $txt['calendar_edit'] : $txt['calendar_post_event'];
     $context['linktree'][] = array('name' => $context['page_title']);
 }

    /**
     * Used to edit the body or subject of a message inline
     * called from action=jsmodify from script and topic js
     */
    public function action_jsmodify()
    {
        global $modSettings, $board, $topic;
        global $user_info, $context;
        $db = database();
        // We have to have a topic!
        if (empty($topic)) {
            obExit(false);
        }
        checkSession('get');
        require_once SUBSDIR . '/Post.subs.php';
        // Assume the first message if no message ID was given.
        $request = $db->query('', '
			SELECT
				t.locked, t.num_replies, t.id_member_started, t.id_first_msg,
				m.id_msg, m.id_member, m.poster_time, m.subject, m.smileys_enabled, m.body, m.icon,
				m.modified_time, m.modified_name, m.approved
			FROM {db_prefix}messages AS m
				INNER JOIN {db_prefix}topics AS t ON (t.id_topic = {int:current_topic})
			WHERE m.id_msg = {raw:id_msg}
				AND m.id_topic = {int:current_topic}' . (allowedTo('modify_any') || allowedTo('approve_posts') ? '' : (!$modSettings['postmod_active'] ? '
				AND (m.id_member != {int:guest_id} AND m.id_member = {int:current_member})' : '
				AND (m.approved = {int:is_approved} OR (m.id_member != {int:guest_id} AND m.id_member = {int:current_member}))')), array('current_member' => $user_info['id'], 'current_topic' => $topic, 'id_msg' => empty($_REQUEST['msg']) ? 't.id_first_msg' : (int) $_REQUEST['msg'], 'is_approved' => 1, 'guest_id' => 0));
        if ($db->num_rows($request) == 0) {
            fatal_lang_error('no_board', false);
        }
        $row = $db->fetch_assoc($request);
        $db->free_result($request);
        // Change either body or subject requires permissions to modify messages.
        if (isset($_POST['message']) || isset($_POST['subject']) || isset($_REQUEST['icon'])) {
            if (!empty($row['locked'])) {
                isAllowedTo('moderate_board');
            }
            if ($row['id_member'] == $user_info['id'] && !allowedTo('modify_any')) {
                if ((!$modSettings['postmod_active'] || $row['approved']) && !empty($modSettings['edit_disable_time']) && $row['poster_time'] + ($modSettings['edit_disable_time'] + 5) * 60 < time()) {
                    fatal_lang_error('modify_post_time_passed', false);
                } elseif ($row['id_member_started'] == $user_info['id'] && !allowedTo('modify_own')) {
                    isAllowedTo('modify_replies');
                } else {
                    isAllowedTo('modify_own');
                }
            } elseif ($row['id_member_started'] == $user_info['id'] && !allowedTo('modify_any')) {
                isAllowedTo('modify_replies');
            } else {
                isAllowedTo('modify_any');
            }
            // Only log this action if it wasn't your message.
            $moderationAction = $row['id_member'] != $user_info['id'];
        }
        $post_errors = Error_Context::context('post', 1);
        if (isset($_POST['subject']) && Util::htmltrim(Util::htmlspecialchars($_POST['subject'])) !== '') {
            $_POST['subject'] = strtr(Util::htmlspecialchars($_POST['subject']), array("\r" => '', "\n" => '', "\t" => ''));
            // Maximum number of characters.
            if (Util::strlen($_POST['subject']) > 100) {
                $_POST['subject'] = Util::substr($_POST['subject'], 0, 100);
            }
        } elseif (isset($_POST['subject'])) {
            $post_errors->addError('no_subject');
            unset($_POST['subject']);
        }
        if (isset($_POST['message'])) {
            if (Util::htmltrim(Util::htmlspecialchars($_POST['message'])) === '') {
                $post_errors->addError('no_message');
                unset($_POST['message']);
            } elseif (!empty($modSettings['max_messageLength']) && Util::strlen($_POST['message']) > $modSettings['max_messageLength']) {
                $post_errors->addError(array('long_message', array($modSettings['max_messageLength'])));
                unset($_POST['message']);
            } else {
                $_POST['message'] = Util::htmlspecialchars($_POST['message'], ENT_QUOTES);
                preparsecode($_POST['message']);
                if (Util::htmltrim(strip_tags(parse_bbc($_POST['message'], false), '<img>')) === '') {
                    $post_errors->addError('no_message');
                    unset($_POST['message']);
                }
            }
        }
        if (isset($_POST['lock'])) {
            if (!allowedTo(array('lock_any', 'lock_own')) || !allowedTo('lock_any') && $user_info['id'] != $row['id_member']) {
                unset($_POST['lock']);
            } elseif (!allowedTo('lock_any')) {
                if ($row['locked'] == 1) {
                    unset($_POST['lock']);
                } else {
                    $_POST['lock'] = empty($_POST['lock']) ? 0 : 2;
                }
            } elseif (!empty($row['locked']) && !empty($_POST['lock']) || $_POST['lock'] == $row['locked']) {
                unset($_POST['lock']);
            } else {
                $_POST['lock'] = empty($_POST['lock']) ? 0 : 1;
            }
        }
        if (isset($_POST['sticky']) && !allowedTo('make_sticky')) {
            unset($_POST['sticky']);
        }
        if (!$post_errors->hasErrors()) {
            $msgOptions = array('id' => $row['id_msg'], 'subject' => isset($_POST['subject']) ? $_POST['subject'] : null, 'body' => isset($_POST['message']) ? $_POST['message'] : null, 'icon' => isset($_REQUEST['icon']) ? preg_replace('~[\\./\\\\*\':"<>]~', '', $_REQUEST['icon']) : null);
//.........这里部分代码省略.........

 /**
  * This function handles adding, deleting and editing labels on messages.
  */
 public function action_manlabels()
 {
     global $txt, $context, $user_info, $scripturl;
     require_once SUBSDIR . '/PersonalMessage.subs.php';
     // Build the link tree elements...
     $context['linktree'][] = array('url' => $scripturl . '?action=pm;sa=manlabels', 'name' => $txt['pm_manage_labels']);
     // Some things for the template
     $context['page_title'] = $txt['pm_manage_labels'];
     $context['sub_template'] = 'labels';
     // Add all existing labels to the array to save, slashing them as necessary...
     $the_labels = array();
     foreach ($context['labels'] as $label) {
         if ($label['id'] != -1) {
             $the_labels[$label['id']] = $label['name'];
         }
     }
     // Submitting changes?
     if (isset($_POST['add']) || isset($_POST['delete']) || isset($_POST['save'])) {
         checkSession('post');
         // This will be for updating messages.
         $message_changes = array();
         $new_labels = array();
         $rule_changes = array();
         // Will most likely need this.
         loadRules();
         // Adding a new label?
         if (isset($_POST['add'])) {
             $_POST['label'] = strtr(Util::htmlspecialchars(trim($_POST['label'])), array(',' => ','));
             if (Util::strlen($_POST['label']) > 30) {
                 $_POST['label'] = Util::substr($_POST['label'], 0, 30);
             }
             if ($_POST['label'] != '') {
                 $the_labels[] = $_POST['label'];
             }
         } elseif (isset($_POST['delete'], $_POST['delete_label'])) {
             $i = 0;
             foreach ($the_labels as $id => $name) {
                 if (isset($_POST['delete_label'][$id])) {
                     unset($the_labels[$id]);
                     $message_changes[$id] = true;
                 } else {
                     $new_labels[$id] = $i++;
                 }
             }
         } elseif (isset($_POST['save']) && !empty($_POST['label_name'])) {
             $i = 0;
             foreach ($the_labels as $id => $name) {
                 if ($id == -1) {
                     continue;
                 } elseif (isset($_POST['label_name'][$id])) {
                     // Prepare the label name
                     $_POST['label_name'][$id] = trim(strtr(Util::htmlspecialchars($_POST['label_name'][$id]), array(',' => ',')));
                     // Has to fit in the database as well
                     if (Util::strlen($_POST['label_name'][$id]) > 30) {
                         $_POST['label_name'][$id] = Util::substr($_POST['label_name'][$id], 0, 30);
                     }
                     if ($_POST['label_name'][$id] != '') {
                         $the_labels[(int) $id] = $_POST['label_name'][$id];
                         $new_labels[$id] = $i++;
                     } else {
                         unset($the_labels[(int) $id]);
                         $message_changes[(int) $id] = true;
                     }
                 } else {
                     $new_labels[$id] = $i++;
                 }
             }
         }
         // Save the label status.
         updateMemberData($user_info['id'], array('message_labels' => implode(',', $the_labels)));
         // Update all the messages currently with any label changes in them!
         if (!empty($message_changes)) {
             $searchArray = array_keys($message_changes);
             if (!empty($new_labels)) {
                 for ($i = max($searchArray) + 1, $n = max(array_keys($new_labels)); $i <= $n; $i++) {
                     $searchArray[] = $i;
                 }
             }
             updateLabelsToPM($searchArray, $new_labels, $user_info['id']);
             // Now do the same the rules - check through each rule.
             foreach ($context['rules'] as $k => $rule) {
                 // Each action...
                 foreach ($rule['actions'] as $k2 => $action) {
                     if ($action['t'] != 'lab' || !in_array($action['v'], $searchArray)) {
                         continue;
                     }
                     $rule_changes[] = $rule['id'];
                     // If we're here we have a label which is either changed or gone...
                     if (isset($new_labels[$action['v']])) {
                         $context['rules'][$k]['actions'][$k2]['v'] = $new_labels[$action['v']];
                     } else {
                         unset($context['rules'][$k]['actions'][$k2]);
                     }
                 }
             }
         }
         // If we have rules to change do so now.
//.........这里部分代码省略.........

/**
 * Saves a PM draft in the user_drafts table
 *
 * - The core draft feature must be enabled, as well as the pm draft option
 * - Determines if this is a new or and update to an existing pm draft
 *
 * @package Drafts
 * @param mixed[] $recipientList
 */
function savePMDraft($recipientList)
{
    global $context, $user_info, $modSettings;
    // Ajax calling
    if (!isset($context['drafts_pm_save'])) {
        $context['drafts_pm_save'] = !empty($modSettings['drafts_enabled']) && !empty($modSettings['drafts_pm_enabled']) && allowedTo('pm_draft');
    }
    // PM survey says ... can you stay or must you go
    if (empty($context['drafts_pm_save']) || !isset($_POST['save_draft']) || !isset($_POST['id_pm_draft'])) {
        return false;
    }
    // Read in what was sent
    $id_pm_draft = empty($_POST['id_pm_draft']) ? 0 : (int) $_POST['id_pm_draft'];
    $draft_info = loadDraft($id_pm_draft, 1);
    $post_errors = Error_Context::context('pm', 1);
    // 5 seconds is the same limit we have for posting
    if (isset($_REQUEST['xml']) && !empty($draft_info['poster_time']) && time() < $draft_info['poster_time'] + 5) {
        // Send something back to the javascript caller
        if (!empty($id_pm_draft)) {
            loadTemplate('Xml');
            $context['sub_template'] = 'xml_draft';
            $context['id_draft'] = $id_pm_draft;
            $context['draft_saved_on'] = $draft_info['poster_time'];
            obExit();
        }
        return true;
    }
    // Determine who this is being sent to
    if (isset($_REQUEST['xml'])) {
        $recipientList['to'] = isset($_POST['recipient_to']) ? explode(',', $_POST['recipient_to']) : array();
        $recipientList['bcc'] = isset($_POST['recipient_bcc']) ? explode(',', $_POST['recipient_bcc']) : array();
    } elseif (!empty($draft_info['to_list']) && empty($recipientList)) {
        $recipientList = unserialize($draft_info['to_list']);
    }
    // Prepare the data
    $draft = array('id_pm_draft' => $id_pm_draft, 'reply_id' => empty($_POST['replied_to']) ? 0 : (int) $_POST['replied_to'], 'body' => Util::htmlspecialchars($_POST['message'], ENT_QUOTES), 'subject' => strtr(Util::htmlspecialchars($_POST['subject']), array("\r" => '', "\n" => '', "\t" => '')), 'id_member' => $user_info['id']);
    // message and subject always need a bit more work
    preparsecode($draft['body']);
    if (Util::strlen($draft['subject']) > 100) {
        $draft['subject'] = Util::substr($draft['subject'], 0, 100);
    }
    // Modifying an existing PM draft?
    if (!empty($id_pm_draft) && !empty($draft_info)) {
        modify_pm_draft($draft, $recipientList);
        // some items to return to the form
        $context['draft_saved'] = true;
        $context['id_pm_draft'] = $id_pm_draft;
    } else {
        $id_pm_draft = create_pm_draft($draft, $recipientList);
        // Everything go as expected, if not toss back an error
        if (!empty($id_pm_draft)) {
            $context['draft_saved'] = true;
            $context['id_pm_draft'] = $id_pm_draft;
        } else {
            $post_errors->addError('draft_not_saved');
        }
    }
    // if we were called from the autosave function, send something back
    if (!empty($id_pm_draft) && isset($_REQUEST['xml']) && !$post_errors->hasError('session_timeout')) {
        loadTemplate('Xml');
        $context['sub_template'] = 'xml_draft';
        $context['id_draft'] = $id_pm_draft;
        $context['draft_saved_on'] = time();
        obExit();
    }
    return;
}

 /**
  * Breaks a string up so its no more than width characters long
  *
  * - Will break at word boundaries
  * - If no natural space is found will break mid-word
  *
  * @param string $string
  * @param int $width
  * @param string $break
  */
 private function _utf8_wordwrap($string, $width = 75, $break = "\n")
 {
     $lines = array();
     while (!empty($string)) {
         // Get the next #width characters before a break (space, tab etc)
         if (preg_match('~^(.{1,' . $width . '})(?:\\s|$)~', $string, $matches)) {
             // Add the #width to the output and set up for the next pass
             $lines[] = $matches[1];
             $string = Util::substr($string, Util::strlen($matches[0]));
         } else {
             $lines[] = Util::substr($string, 0, $width);
             $string = Util::substr($string, $width);
         }
     }
     // Join it all the shortened sections up on our break characters
     return implode($break, $lines);
 }

 /**
  * Converts the first character of a multi-byte string to uppercase
  *
  * @param string $string
  */
 public static function ucfirst($string)
 {
     return Util::strtoupper(Util::substr($string, 0, 1)) . Util::substr($string, 1);
 }