PHP break_up_long_words函数代码示例

//.........这里部分代码省略.........

    // do not use log table if possible, it may be huge and is expensive to join with other tables

    if (!$posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
                                              d.timestart, d.timeend, d.userid AS duserid,
                                              u.firstname, u.lastname, u.email, u.picture
                                         FROM {forum_posts} p
                                              JOIN {forum_discussions} d ON d.id = p.discussion
                                              JOIN {forum} f             ON f.id = d.forum
                                              JOIN {user} u              ON u.id = p.userid
                                        WHERE p.created > ? AND f.course = ?
                                     ORDER BY p.id ASC", array($timestart, $course->id))) { // order by initial posting date
         return false;
    }

    $modinfo = get_fast_modinfo($course);

    $groupmodes = array();
    $cms    = array();

    $strftimerecent = get_string('strftimerecent');

    $printposts = array();
    foreach ($posts as $post) {
        if (!isset($modinfo->instances['forum'][$post->forum])) {
            // not visible
            continue;
        }
        $cm = $modinfo->instances['forum'][$post->forum];
        if (!$cm->uservisible) {
            continue;
        }
        $context = context_module::instance($cm->id);

        if (!has_capability('mod/forum:viewdiscussion', $context)) {
            continue;
        }

        if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid
          and (($post->timestart > 0 and $post->timestart > time()) or ($post->timeend > 0 and $post->timeend < time()))) {
            if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
                continue;
            }
        }

        $groupmode = groups_get_activity_groupmode($cm, $course);

        if ($groupmode) {
            if ($post->groupid == -1 or $groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $context)) {
                // oki (Open discussions have groupid -1)
            } else {
                // separate mode
                if (isguestuser()) {
                    // shortcut
                    continue;
                }

                if (is_null($modinfo->groups)) {
                    $modinfo->groups = groups_get_user_groups($course->id); // load all my groups and cache it in modinfo
                }

                if (!array_key_exists($post->groupid, $modinfo->groups[0])) {
                    continue;
                }
            }
        }

        $printposts[] = $post;
    }
    unset($posts);

    if (!$printposts) {
        return false;
    }

    echo $OUTPUT->heading(get_string('newforumposts', 'forum').':', 3);
    echo "\n<ul class='unlist'>\n";

    foreach ($printposts as $post) {
        $subjectclass = empty($post->parent) ? ' bold' : '';

        echo '<li><div class="head">'.
               '<div class="date">'.userdate($post->modified, $strftimerecent).'</div>'.
               '<div class="name">'.fullname($post, $viewfullnames).'</div>'.
             '</div>';
        echo '<div class="info'.$subjectclass.'">';
        if (empty($post->parent)) {
            echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'">';
        } else {
            echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'&amp;parent='.$post->parent.'#p'.$post->id.'">';
        }
        $post->subject = break_up_long_words(format_string($post->subject, true));
        echo $post->subject;
        echo "</a>\"</div></li>\n";
    }

    echo "</ul>\n";

    return true;
}

 /**
  * Returns the html list item of a feed item
  *
  * @param mixed item simplepie_item representing the feed item
  * @return string html li representing the rss feed item
  */
 function get_item_html($item)
 {
     $link = $item->get_link();
     $title = $item->get_title();
     $description = $item->get_description();
     if (empty($title)) {
         // no title present, use portion of description
         $title = textlib::substr(strip_tags($description), 0, 20) . '...';
     } else {
         $title = break_up_long_words($title, 30);
     }
     if (empty($link)) {
         $link = $item->get_id();
     } else {
         try {
             // URLs in our RSS cache will be escaped (correctly as theyre store in XML)
             // html_writer::link() will re-escape them. To prevent double escaping unescape here.
             // This can by done using htmlspecialchars_decode() but moodle_url also has that effect.
             $link = new moodle_url($link);
         } catch (moodle_exception $e) {
             // Catching the exception to prevent the whole site to crash in case of malformed RSS feed
             $link = '';
         }
     }
     $r = html_writer::start_tag('li');
     $r .= html_writer::start_tag('div', array('class' => 'link'));
     $r .= html_writer::link($link, s($title), array('onclick' => 'this.target="_blank"'));
     $r .= html_writer::end_tag('div');
     if ($this->config->display_description && !empty($description)) {
         $formatoptions = new stdClass();
         $formatoptions->para = false;
         $r .= html_writer::start_tag('div', array('class' => 'description'));
         $description = format_text($description, FORMAT_HTML, $formatoptions, $this->page->course->id);
         $description = break_up_long_words($description, 30);
         $r .= $description;
         $r .= html_writer::end_tag('div');
     }
     $r .= html_writer::end_tag('li');
     return $r;
 }

/**
 * Given a course and a date, prints a summary of all the new
 * messages posted in the course since that date
 *
 * @global object
 * @global object
 * @global object
 * @uses CONTEXT_MODULE
 * @uses VISIBLEGROUPS
 * @param object $course
 * @param bool $viewfullnames capability
 * @param int $timestart
 * @return bool success
 */
function forum_print_recent_activity($course, $viewfullnames, $timestart)
{
    global $CFG, $USER, $DB, $OUTPUT;
    // do not use log table if possible, it may be huge and is expensive to join with other tables
    $allnamefields = user_picture::fields('u', null, 'duserid');
    if (!($posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,\n                                              d.timestart, d.timeend, {$allnamefields}\n                                         FROM {forum_posts} p\n                                              JOIN {forum_discussions} d ON d.id = p.discussion\n                                              JOIN {forum} f             ON f.id = d.forum\n                                              JOIN {user} u              ON u.id = p.userid\n                                        WHERE p.created > ? AND f.course = ?\n                                     ORDER BY p.id ASC", array($timestart, $course->id)))) {
        // order by initial posting date
        return false;
    }
    $modinfo = get_fast_modinfo($course);
    $groupmodes = array();
    $cms = array();
    $strftimerecent = get_string('strftimerecent');
    $printposts = array();
    foreach ($posts as $post) {
        if (!isset($modinfo->instances['forum'][$post->forum])) {
            // not visible
            continue;
        }
        $cm = $modinfo->instances['forum'][$post->forum];
        if (!$cm->uservisible) {
            continue;
        }
        $context = context_module::instance($cm->id);
        if (!has_capability('mod/forum:viewdiscussion', $context)) {
            continue;
        }
        if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid and ($post->timestart > 0 and $post->timestart > time() or $post->timeend > 0 and $post->timeend < time())) {
            if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
                continue;
            }
        }
        // Check that the user can see the discussion.
        if (forum_is_user_group_discussion($cm, $post->groupid)) {
            $printposts[] = $post;
        }
    }
    unset($posts);
    if (!$printposts) {
        return false;
    }
    echo $OUTPUT->heading(get_string('newforumposts', 'forum') . ':', 3);
    echo "\n<ul class='unlist'>\n";
    foreach ($printposts as $post) {
        $subjectclass = empty($post->parent) ? ' bold' : '';
        echo '<li><div class="head">' . '<div class="date">' . userdate($post->modified, $strftimerecent) . '</div>' . '<div class="name">' . fullname($post, $viewfullnames) . '</div>' . '</div>';
        echo '<div class="info' . $subjectclass . '">';
        if (empty($post->parent)) {
            echo '"<a href="' . $CFG->wwwroot . '/mod/forum/discuss.php?d=' . $post->discussion . '">';
        } else {
            echo '"<a href="' . $CFG->wwwroot . '/mod/forum/discuss.php?d=' . $post->discussion . '&amp;parent=' . $post->parent . '#p' . $post->id . '">';
        }
        $post->subject = break_up_long_words(format_string($post->subject, true));
        echo $post->subject;
        echo "</a>\"</div></li>\n";
    }
    echo "</ul>\n";
    return true;
}

 /**
  * Returns the html list item of a feed item
  *
  * @param mixed item simplepie_item representing the feed item
  * @return string html li representing the rss feed item
  */
 function get_item_html($item)
 {
     $link = $item->get_link();
     $title = $item->get_title();
     $description = $item->get_description();
     if (empty($title)) {
         // no title present, use portion of description
         $title = substr(strip_tags($description), 0, 20) . '...';
     } else {
         $title = break_up_long_words($title, 30);
     }
     if (empty($link)) {
         $link = $item->get_id();
     }
     $r = html_writer::start_tag('li');
     $r .= html_writer::start_tag('div', array('class' => 'link'));
     $r .= html_writer::link(clean_param($link, PARAM_URL), s($title), array('onclick' => 'this.target="_blank"'));
     $r .= html_writer::end_tag('div');
     if ($this->config->display_description && !empty($description)) {
         $description = break_up_long_words($description, 30);
         $formatoptions = new stdClass();
         $formatoptions->para = false;
         $r .= html_writer::start_tag('div', array('class' => 'description'));
         $r .= format_text($description, FORMAT_HTML, $formatoptions, $this->page->course->id);
         $r .= html_writer::end_tag('div');
     }
     $r .= html_writer::end_tag('li');
     return $r;
 }

/**
 * Given a course and a date, prints a summary of all the new
 * messages posted in the course since that date
 *
 * @global object
 * @global object
 * @global object
 * @uses CONTEXT_MODULE
 * @uses VISIBLEGROUPS
 * @param object $course
 * @param bool $viewfullnames capability
 * @param int $timestart
 * @return bool success
 */
function forum_print_recent_activity($course, $viewfullnames, $timestart)
{
    global $CFG, $USER, $DB, $OUTPUT;
    // do not use log table if possible, it may be huge and is expensive to join with other tables
    $allnamefields = user_picture::fields('u', null, 'duserid');
    if (!($posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,\n                                              d.timestart, d.timeend, {$allnamefields}\n                                         FROM {forum_posts} p\n                                              JOIN {forum_discussions} d ON d.id = p.discussion\n                                              JOIN {forum} f             ON f.id = d.forum\n                                              JOIN {user} u              ON u.id = p.userid\n                                        WHERE p.created > ? AND f.course = ?\n                                     ORDER BY p.id ASC", array($timestart, $course->id)))) {
        // order by initial posting date
        return false;
    }
    $modinfo = get_fast_modinfo($course);
    $groupmodes = array();
    $cms = array();
    $strftimerecent = get_string('strftimerecent');
    $printposts = array();
    foreach ($posts as $post) {
        if (!isset($modinfo->instances['forum'][$post->forum])) {
            // not visible
            continue;
        }
        $cm = $modinfo->instances['forum'][$post->forum];
        if (!$cm->uservisible) {
            continue;
        }
        $context = context_module::instance($cm->id);
        if (!has_capability('mod/forum:viewdiscussion', $context)) {
            continue;
        }
        if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid and ($post->timestart > 0 and $post->timestart > time() or $post->timeend > 0 and $post->timeend < time())) {
            if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
                continue;
            }
        }
        // Check that the user can see the discussion.
        if (forum_is_user_group_discussion($cm, $post->groupid)) {
            $printposts[] = $post;
        }
    }
    unset($posts);
    if (!$printposts) {
        return false;
    }
    echo $OUTPUT->heading(get_string('newforumposts', 'forum') . ':', 3);
    $list = html_writer::start_tag('ul', ['class' => 'unlist']);
    foreach ($printposts as $post) {
        $subjectclass = empty($post->parent) ? ' bold' : '';
        $authorhidden = forum_is_author_hidden($post, (object) ['type' => $post->forumtype]);
        $list .= html_writer::start_tag('li');
        $list .= html_writer::start_div('head');
        $list .= html_writer::div(userdate($post->modified, $strftimerecent), 'date');
        if (!$authorhidden) {
            $list .= html_writer::div(fullname($post, $viewfullnames), 'name');
        }
        $list .= html_writer::end_div();
        // Head.
        $list .= html_writer::start_div('info' . $subjectclass);
        $discussionurl = new moodle_url('/mod/forum/discuss.php', ['d' => $post->discussion]);
        if (!empty($post->parent)) {
            $discussionurl->param('parent', $post->parent);
            $discussionurl->set_anchor('p' . $post->id);
        }
        $post->subject = break_up_long_words(format_string($post->subject, true));
        $list .= html_writer::link($discussionurl, $post->subject);
        $list .= html_writer::end_div();
        // Info.
        $list .= html_writer::end_tag('li');
    }
    $list .= html_writer::end_tag('ul');
    echo $list;
    return true;
}

 /**
  * @param int $rssid The feed to be displayed
  * @param bool $display_description Should the description information from the feed be displayed or simply the title?
  * @param int $shownumentries The maximum number of feed entries to be displayed.
  * @param bool $showtitle True if the feed title should be displayed above the feed entries.
  * @return string|NULL
  */
 function get_rss_by_id($rssid, $display_description, $shownumentries, $showtitle = false)
 {
     global $CFG;
     $returnstring = '';
     $now = time();
     require_once $CFG->libdir . '/rsslib.php';
     require_once MAGPIE_DIR . 'rss_fetch.inc';
     if (!defined('MAGPIE_OUTPUT_ENCODING')) {
         define('MAGPIE_OUTPUT_ENCODING', 'utf-8');
         // see bug 3107
     }
     $rss_record = get_record('block_rss_client', 'id', $rssid);
     if (isset($rss_record) && isset($rss_record->id)) {
         // By capturing the output from fetch_rss this way
         // error messages do not display and clutter up the moodle interface
         // however, we do lose out on seeing helpful messages like "cache hit", etc.
         ob_start();
         $rss = fetch_rss($rss_record->url);
         $rsserror = ob_get_contents();
         ob_end_clean();
         if ($rss === false) {
             if (debugging() && !empty($rsserror)) {
                 // There was a failure in loading the rss feed, print link to full error text
                 return '<a href="' . $CFG->wwwroot . '/blocks/rss_client/block_rss_client_error.php?error=' . urlencode($rsserror) . '">Error loading a feed.</a><br />';
                 //Daryl Hawes note: localize this line
             }
         }
         // first we must verify that the rss feed is loaded
         // by checking $rss and $rss->items exist before using them
         if (empty($rss) || empty($rss->items)) {
             return '';
         }
         if ($shownumentries > 0 && $shownumentries < count($rss->items)) {
             $rss->items = array_slice($rss->items, 0, $shownumentries);
         }
         if (empty($rss_record->preferredtitle)) {
             if (isset($rss->channel['title'])) {
                 // Just in case feed is dead
                 $feedtitle = $this->format_title($rss->channel['title']);
             } else {
                 $feedtitle = '';
             }
         } else {
             $feedtitle = $this->format_title($rss_record->preferredtitle);
         }
         if (isset($this->config) && isset($this->config->block_rss_client_show_channel_image) && $this->config->block_rss_client_show_channel_image && isset($rss->image) && isset($rss->image['link']) && isset($rss->image['title']) && isset($rss->image['url'])) {
             $rss->image['title'] = s($rss->image['title']);
             $returnstring .= "\n" . '<div class="image" title="' . $rss->image['title'] . '"><a href="' . $rss->image['link'] . '"><img src="' . $rss->image['url'] . '" alt="' . $rss->image['title'] . '" /></a></div>';
         }
         if ($showtitle) {
             $returnstring .= '<div class="title">' . $feedtitle . '</div>';
         }
         $formatoptions->para = false;
         /// Accessibility: markup as a list.
         $returnstring .= '<ul class="list">' . "\n";
         foreach ($rss->items as $item) {
             if ($item['title'] == '') {
                 // no title present, use portion of description
                 $item['title'] = substr(strip_tags($item['description']), 0, 20) . '...';
             } else {
                 $item['title'] = break_up_long_words($item['title'], 30);
             }
             if ($item['link'] == '') {
                 $item['link'] = $item['guid'];
             }
             $item['title'] = s($item['title']);
             $item['link'] = str_replace('&', '&amp;', $item['link']);
             $returnstring .= '<li><div class="link"><a href="' . $item['link'] . '" onclick="this.target=\'_blank\'" >' . $item['title'] . "</a></div>\n";
             if ($display_description && !empty($item['description'])) {
                 $item['description'] = break_up_long_words($item['description'], 30);
                 $returnstring .= '<div class="description">' . format_text($item['description'], FORMAT_MOODLE, $formatoptions, $this->courseid) . '</div>';
             }
             $returnstring .= "</li>\n";
         }
         $returnstring .= "</ul>\n";
         if (!empty($rss->channel['link'])) {
             $rss->channel['link'] = str_replace('&', '&amp;', $rss->channel['link']);
             if (!empty($this->config) && isset($this->config->block_rss_client_show_channel_link) && $this->config->block_rss_client_show_channel_link) {
                 $this->content->footer = '<a href="' . $rss->channel['link'] . '">' . get_string('clientchannellink', 'block_rss_client') . '</a>';
             }
             if (!empty($feedtitle)) {
                 $feedtitle = '<a href="' . $rss->channel['link'] . '">' . $feedtitle . '</a>';
             }
         }
     }
     // if block has no custom title
     if (empty($this->config) || !empty($this->config) && empty($this->config->title)) {
         // if the feed has a title
         if (!empty($feedtitle) and $feedtitle != '<a href="' . $rss->channel['link'] . '"></a>') {
             // set the block's title to the feed's title
             $this->title = strip_tags($feedtitle);
         }
     }
//.........这里部分代码省略.........

 /**
  * Format an RSS item description
  *
  * @param string $description
  * @return string
  */
 public function format_description($description)
 {
     $description = format_text($description, FORMAT_HTML, array('para' => false));
     $description = break_up_long_words($description, 30);
     return $description;
 }

/**
 * Given a course and a date, prints a summary of all the new
 * messages posted in the course since that date as HTML media objects
 *
 * @global object $CFG
 * @global object $USER
 * @global object $DB
 * @global object $OUTPUT
 * @uses CONTEXT_MODULE
 * @uses VISIBLEGROUPS
 * @param object $course
 * @param bool $viewfullnames capability
 * @param int $timestart
 * @return string recent activity
 */
function hsuforum_recent_activity($course, $viewfullnames, $timestart, $forumid = null)
{
    global $CFG, $USER, $DB, $OUTPUT;
    $limitfrom = 0;
    $limitnum = 0;
    $andforumid = '';
    if ($forumid !== null) {
        $andforumid = 'AND d.forum = ?';
        $limitnum = 6;
    }
    $allnamefields = user_picture::fields('u', null, 'duserid');
    $sql = "SELECT p.*, f.anonymous as forumanonymous, f.type AS forumtype,\n                   d.forum, d.groupid, d.timestart, d.timeend, {$allnamefields}\n              FROM {hsuforum_posts} p\n              JOIN {hsuforum_discussions} d ON d.id = p.discussion\n              JOIN {hsuforum} f             ON f.id = d.forum\n              JOIN {user} u                 ON u.id = p.userid\n             WHERE p.created > ?\n                   AND f.course = ?\n                   AND (p.privatereply = 0 OR p.privatereply = ? OR p.userid = ?)\n                   {$andforumid}\n          ORDER BY p.created DESC\n    ";
    $params = array($timestart, $course->id, $USER->id, $USER->id, $forumid);
    if (!($posts = $DB->get_records_sql($sql, $params, $limitfrom, $limitnum))) {
        return '';
    }
    $modinfo = get_fast_modinfo($course);
    $config = get_config('hsuforum');
    $groupmodes = array();
    $cms = array();
    $out = '';
    foreach ($posts as $post) {
        if (!isset($modinfo->instances['hsuforum'][$post->forum])) {
            // not visible
            continue;
        }
        $cm = $modinfo->instances['hsuforum'][$post->forum];
        if (!$cm->uservisible) {
            continue;
        }
        $context = context_module::instance($cm->id);
        if (!has_capability('mod/hsuforum:viewdiscussion', $context)) {
            continue;
        }
        if (!empty($config->enabletimedposts) and $USER->id != $post->duserid and ($post->timestart > 0 and $post->timestart > time() or $post->timeend > 0 and $post->timeend < time())) {
            if (!has_capability('mod/hsuforum:viewhiddentimedposts', $context)) {
                continue;
            }
        }
        // Check that the user can see the discussion.
        if (hsuforum_is_user_group_discussion($cm, $post->groupid)) {
            $postuser = hsuforum_extract_postuser($post, hsuforum_get_cm_forum($cm), context_module::instance($cm->id));
            $userpicture = new user_picture($postuser);
            $userpicture->link = false;
            $userpicture->alttext = false;
            $userpicture->size = 100;
            $picture = $OUTPUT->render($userpicture);
            $url = $CFG->wwwroot . '/mod/hsuforum/discuss.php?d=' . $post->discussion;
            if (!empty($post->parent)) {
                $url .= '#p' . $post->id;
            }
            $postusername = fullname($postuser, $viewfullnames);
            $postsubject = break_up_long_words(format_string($post->subject, true));
            $posttime = hsuforum_relative_time($post->modified);
            $out .= hsuforum_media_object($url, $picture, $postusername, $posttime, $postsubject);
        }
    }
    if ($out) {
        $out = "<h3 class='hsuforum-recent-heading'>" . get_string('newforumposts', 'hsuforum') . "</h3>" . $out;
    }
    return $out;
}

/**
 * Given a course and a time, this module should find recent activity
 * that has occurred in newmodule activities and print it out.
 * Return true if there was output, or false is there was none.
 *
 * @param object $course
 * @param bool $isteacher
 * @param int $timestart
 * @return boolean true on success, false on failure.
 **/
function oublog_print_recent_activity($course, $isteacher, $timestart)
{
    global $CFG, $DB, $OUTPUT;
    include_once 'locallib.php';
    $sql = "SELECT i.oublogid, p.id AS postid, p.*, u.firstname, u.lastname, u.email, u.idnumber, i.userid\n            FROM {oublog_posts} p\n                INNER JOIN {oublog_instances} i ON p.oubloginstancesid = i.id\n                INNER JOIN {oublog} b ON i.oublogid = b.id\n                INNER JOIN {user} u ON i.userid = u.id\n            WHERE b.course = ? AND p.deletedby IS NULL AND p.timeposted >= ? ";
    if (!($rs = $DB->get_recordset_sql($sql, array($course->id, $timestart)))) {
        return true;
    }
    $modinfo = get_fast_modinfo($course);
    $strftimerecent = get_string('strftimerecent');
    echo $OUTPUT->heading(get_string('newblogposts', 'oublog'), 3);
    echo "\n<ul class='unlist'>\n";
    foreach ($rs as $blog) {
        if (!isset($modinfo->instances['oublog'][$blog->oublogid])) {
            // not visible
            continue;
        }
        $cm = $modinfo->instances['oublog'][$blog->oublogid];
        if (!$cm->uservisible) {
            continue;
        }
        if (!has_capability('mod/oublog:view', context_module::instance($cm->id))) {
            continue;
        }
        if (!has_capability('mod/oublog:view', context_user::instance($blog->userid))) {
            continue;
        }
        $groupmode = oublog_get_activity_groupmode($cm, $course);
        if ($groupmode) {
            if ($blog->groupid && $groupmode != VISIBLEGROUPS) {
                // separate mode
                if (isguestuser()) {
                    // shortcut
                    continue;
                }
                if (is_null($modinfo->groups)) {
                    $modinfo->groups = groups_get_user_groups($course->id);
                    // load all my groups and cache it in modinfo
                }
                if (!array_key_exists($blog->groupid, $modinfo->groups[0])) {
                    continue;
                }
            }
        }
        echo '<li><div class="head">' . '<div class="date">' . oublog_date($blog->timeposted, $strftimerecent) . '</div>' . '<div class="name">' . fullname($blog) . '</div>' . '</div>';
        echo '<div class="info">';
        echo "<a href=\"{$CFG->wwwroot}/mod/oublog/viewpost.php?post={$blog->postid}\">";
        echo break_up_long_words(format_string(empty($blog->title) ? $blog->message : $blog->title));
        echo '</a>';
        echo '</div>';
    }
    $rs->close();
    echo "</ul>\n";
}

 /**
  * Returns the html list item of a feed item
  *
  * @param mixed item simplepie_item representing the feed item
  * @return string html li representing the rss feed item
  */
 function get_item_html($item)
 {
     $link = $item->get_link();
     $title = $item->get_title();
     $description = $item->get_description();
     if (empty($title)) {
         // no title present, use portion of description
         $title = substr(strip_tags($description), 0, 20) . '...';
     } else {
         $title = break_up_long_words($title, 30);
     }
     if (empty($link)) {
         $link = $item->get_id();
     }
     $r = "<li>\n";
     $r .= '<div class="link"><a href="' . $link . '" onclick="this.target=\'_blank\'" >' . "\n";
     $r .= s($title);
     $r .= "</a></div>\n";
     if ($this->config->display_description && !empty($description)) {
         $description = break_up_long_words($description, 30);
         $formatoptions = new object();
         $formatoptions->para = false;
         $r .= '<div class="description">';
         $r .= format_text($description, FORMAT_HTML, $formatoptions, $this->page->course->id);
         $r .= '</div>';
     }
     $r .= '</li>';
     return $r;
 }

 /**
  * Returns the html list item of a feed item
  *
  * @param mixed item simplepie_item representing the feed item
  * @return string html li representing the rss feed item
  */
 function get_item_html($item)
 {
     $link = $item->get_link();
     $title = $item->get_title();
     $description = $item->get_description();
     if (empty($title)) {
         // no title present, use portion of description
         $title = textlib::substr(strip_tags($description), 0, 20) . '...';
     } else {
         $title = break_up_long_words($title, 30);
     }
     if (empty($link)) {
         $link = $item->get_id();
     } else {
         //URLs in our RSS cache will be escaped (correctly as theyre store in XML)
         //html_writer::link() will re-escape them. To prevent double escaping unescape here.
         //This can by done using htmlspecialchars_decode() but moodle_url also has that effect
         $link = new moodle_url($link);
     }
     $r = html_writer::start_tag('li');
     $r .= html_writer::start_tag('div', array('class' => 'rsslink'));
     $r .= html_writer::link(clean_param($link, PARAM_URL), s($title), array('onclick' => 'this.target="_blank"'));
     $r .= html_writer::end_tag('div');
     $description = break_up_long_words($description, 30);
     $description = textlib::substr(strip_tags($description), 0, 255) . '';
     $formatoptions = new stdClass();
     $formatoptions->para = false;
     $r .= html_writer::start_tag('div', array('class' => 'rssdescription'));
     $r .= format_text($description, FORMAT_HTML, $formatoptions, $this->page->course->id);
     $r .= html_writer::end_tag('div');
     $r .= html_writer::start_tag('div', array('class' => 'rssimage'));
     /**
      * Gets the thumbnail from the RSS feed. 
      * Currently works best with BBC news feeds
      * with little success on others.
      * Need help on this bit.
      * 
      */
     if ($enclosure = $item->get_enclosure()) {
         foreach ((array) $enclosure->get_thumbnail(1) as $thumbnail) {
             $r .= '<img src="' . $thumbnail . '"/>' . "\n";
         }
     }
     $r .= html_writer::end_tag('div');
     $r .= html_writer::end_tag('li');
     return $r;
 }