PHP String::truncate方法代码示例

 /**
  * Truncate some text
  *
  * @param   string   $text     Text to truncate
  * @param   integer  $length   Length to truncate to
  * @param   array    $options  Options
  * @return  string
  * @throws  \InvalidArgumentException If no text is passed or length isn't a positive integer
  */
 public function __invoke($text = null, $length = null, $options = array())
 {
     if (null === $text) {
         throw new \InvalidArgumentException(__METHOD__ . '(); No text passed.');
     }
     if (!$length || !is_numeric($length)) {
         throw new \InvalidArgumentException(__METHOD__ . '(); Length must be an integer');
     }
     return String::truncate($text, $length, $options);
 }

 /**
  * Validate data
  *
  * @return  boolean  True if data is valid
  */
 public function check()
 {
     $this->message = trim($this->message);
     if ($this->message == '') {
         $this->setError(Lang::txt('SUPPORT_ERROR_BLANK_FIELD'));
         return false;
     }
     $this->title = trim($this->title);
     if (!$this->title) {
         $this->title = String::truncate($this->message, 250);
     }
     return true;
 }

 /**
  * Constructor
  *
  * @param   integer  $scope_id  Scope ID (group, course, etc.)
  * @return  void
  */
 public function __construct($scope_id = 0)
 {
     $this->set('scope_id', $scope_id);
     include_once PATH_CORE . DS . 'components' . DS . 'com_courses' . DS . 'models' . DS . 'courses.php';
     $offering = \Components\Courses\Models\Offering::getInstance($this->get('scope_id'));
     $course = \Components\Courses\Models\Course::getInstance($offering->get('course_id'));
     $this->_segments['gid'] = $course->get('alias');
     $this->_segments['offering'] = $offering->alias();
     $this->_segments['active'] = 'discussions';
     if (Request::getVar('active') == 'outline') {
         $this->_segments['active'] = 'outline';
     }
     $this->_name = String::truncate($course->get('alias'), 50) . ': ' . String::truncate($offering->get('alias'), 50);
 }

 /**
  * Process data
  *
  * @return     void
  */
 protected function _process()
 {
     // New project?
     $new = $this->model->exists() ? false : true;
     // Are we in setup?
     $setup = $new || $this->model->inSetup() ? true : false;
     // Incoming
     $private = Request::getInt('private', 1);
     // Save section
     switch ($this->section) {
         case 'describe':
         case 'info':
             // Incoming
             $name = trim(Request::getVar('name', '', 'post'));
             $title = trim(Request::getVar('title', '', 'post'));
             $name = preg_replace('/ /', '', $name);
             $name = strtolower($name);
             // Clean up title from any scripting
             $title = preg_replace('/\\s+/', ' ', $title);
             $title = $this->_txtClean($title);
             // Check incoming data
             if ($setup && $new && !$this->model->check($name, $this->model->get('id'))) {
                 $this->setError(Lang::txt('COM_PROJECTS_ERROR_NAME_INVALID_OR_EMPTY'));
                 return false;
             } elseif (!$title) {
                 $this->setError(Lang::txt('COM_PROJECTS_ERROR_TITLE_SHORT_OR_EMPTY'));
                 return false;
             }
             if ($this->model->exists()) {
                 $this->model->set('modified', Date::toSql());
                 $this->model->set('modified_by', User::get('id'));
             } else {
                 $this->model->set('alias', $name);
                 $this->model->set('created', Date::toSql());
                 $this->model->set('created_by_user', User::get('id'));
                 $this->model->set('owned_by_group', $this->_gid);
                 $this->model->set('owned_by_user', User::get('id'));
                 $this->model->set('private', $this->config->get('privacy', 1));
             }
             $this->model->set('title', \Hubzero\Utility\String::truncate($title, 250));
             $this->model->set('about', trim(Request::getVar('about', '', 'post', 'none', 2)));
             $this->model->set('type', Request::getInt('type', 1, 'post'));
             // save advanced permissions
             if (isset($_POST['private'])) {
                 $this->model->set('private', $private);
             }
             if ($setup && !$this->model->exists()) {
                 // Copy params from default project type
                 $objT = $this->model->table('Type');
                 $this->model->set('params', $objT->getParams($this->model->get('type')));
             }
             // Save changes
             if (!$this->model->store()) {
                 $this->setError($this->model->getError());
                 return false;
             }
             // Save owners for new projects
             if ($new) {
                 $this->_identifier = $this->model->get('alias');
                 // Group owners
                 $objO = $this->model->table('Owner');
                 if ($this->_gid) {
                     if (!$objO->saveOwners($this->model->get('id'), User::get('id'), 0, $this->_gid, 0, 1, 1, '', $split_group_roles = 0)) {
                         $this->setError(Lang::txt('COM_PROJECTS_ERROR_SAVING_AUTHORS') . ': ' . $objO->getError());
                         return false;
                     }
                     // Make sure project creator is manager
                     $objO->reassignRole($this->model->get('id'), $users = array(User::get('id')), 0, 1);
                 } elseif (!$objO->saveOwners($this->model->get('id'), User::get('id'), User::get('id'), $this->_gid, 1, 1, 1)) {
                     $this->setError(Lang::txt('COM_PROJECTS_ERROR_SAVING_AUTHORS') . ': ' . $objO->getError());
                     return false;
                 }
             }
             break;
         case 'team':
             if ($new) {
                 return false;
             }
             // Save team
             $content = Event::trigger('projects.onProject', array($this->model, 'save', array('team')));
             if (isset($content[0]) && $this->next == $this->section) {
                 if (isset($content[0]['msg']) && !empty($content[0]['msg'])) {
                     $this->_setNotification($content[0]['msg']['message'], $content[0]['msg']['type']);
                 }
             }
             break;
         case 'settings':
             if ($new) {
                 return false;
             }
             // Save privacy
             if (isset($_POST['private'])) {
                 $this->model->set('private', $private);
                 // Save changes
                 if (!$this->model->store()) {
//.........这里部分代码省略.........

 /**
  * Static method for formatting results
  *
  * @param      object $row Database row
  * @return     string HTML
  */
 public static function out($row)
 {
     $row->href = Route::url($row->href);
     $month = Date::of($row->publish_up)->toLocal('M');
     $day = Date::of($row->publish_up)->toLocal('d');
     $year = Date::of($row->publish_up)->toLocal('Y');
     // Start building the HTML
     $html = "\t" . '<li class="event">' . "\n";
     $html .= "\t\t" . '<p class="event-date"><span class="month">' . $month . '</span> <span class="day">' . $day . '</span> <span class="year">' . $year . '</span></p>' . "\n";
     $html .= "\t\t" . '<p class="title"><a href="' . $row->href . '">' . stripslashes($row->title) . '</a></p>' . "\n";
     if ($row->ftext) {
         $row->ftext = str_replace('[[BR]]', '', $row->ftext);
         // Remove tags to prevent tables from being displayed within a table.
         $row->ftext = strip_tags($row->ftext);
         $html .= "\t\t" . \Hubzero\Utility\String::truncate(\Hubzero\Utility\Sanitize::stripAll(stripslashes($row->ftext)), 200) . "\n";
     }
     $html .= "\t\t" . '<p class="href">' . Request::base() . trim($row->href, '/') . '</p>' . "\n";
     $html .= "\t" . '</li>' . "\n";
     // Return output
     return $html;
 }

echo $this->pub->id;
?>
" />
		<input type="hidden" name="vid" value="<?php 
echo $this->pub->version_id;
?>
" />
		<input type="hidden" name="task" id="task" value="save" />
	</fieldset>
<div class="curation-wrap">
	<div class="pubtitle">
		<h3><span class="restype indlist"><?php 
echo $typetitle;
?>
</span> <?php 
echo \Hubzero\Utility\String::truncate($this->pub->title, 65);
?>
 | <?php 
echo Lang::txt('COM_PUBLICATIONS_CURATION_VERSION') . ' ' . $this->pub->version_label;
?>
		</h3>
	</div>
	<p class="instruct">
		<span class="pubimage"><img src="<?php 
echo Route::url('index.php?option=com_publications&id=' . $this->pub->id . '&v=' . $this->pub->version_id) . '/Image:thumb';
?>
" alt="" /></span>
		<strong class="block"><?php 
echo $this->pub->reviewed ? Lang::txt('COM_PUBLICATIONS_CURATION_RESUBMITTED') : Lang::txt('COM_PUBLICATIONS_CURATION_SUBMITTED');
echo ' ' . Date::of($this->pub->submitted)->toLocal('M d, Y') . ' ' . Lang::txt('COM_PUBLICATIONS_CURATION_BY') . ' ' . $this->pub->modifier('name');
?>

 /**
  * On after approve/kickback
  *
  * @return  void
  */
 public function onAfterStatusChange()
 {
     if ($this->getError()) {
         return;
     }
     $pub = $this->_pub;
     $status = $this->_pub->version->state;
     $activity = $status == 1 ? Lang::txt('COM_PUBLICATIONS_CURATION_ACTIVITY_PUBLISHED') : Lang::txt('COM_PUBLICATIONS_CURATION_ACTIVITY_KICKBACK');
     $pubtitle = \Hubzero\Utility\String::truncate($pub->title, 100);
     // Log activity in curation history
     $pub->_curationModel->saveHistory(User::get('id'), $pub->state, $status, 1);
     // Add activity
     $activity .= ' ' . strtolower(Lang::txt('version')) . ' ' . $pub->version_label . ' ' . Lang::txt('COM_PUBLICATIONS_OF') . ' ' . strtolower(Lang::txt('publication')) . ' "' . $pubtitle . '" ';
     // Record activity
     $aid = $pub->project()->recordActivity($activity, $pub->id, $pubtitle, $pub->link('version'), 'publication', 0, $admin = 1);
     // Start message
     $sef = 'publications' . DS . $pub->id . DS . $pub->version_number;
     $link = rtrim(Request::base(), DS) . DS . trim($pub->link('version'), DS);
     $manage = rtrim(Request::base(), DS) . DS . trim($pub->link('editversion'), DS);
     $message = $status == 1 ? Lang::txt('COM_PUBLICATIONS_CURATION_EMAIL_CURATOR_APPROVED') : Lang::txt('COM_PUBLICATIONS_CURATION_EMAIL_CURATOR_KICKED_BACK');
     if ($status != 1) {
         $message .= "\n" . "\n";
         $message .= Lang::txt('COM_PUBLICATIONS_CURATION_TAKE_ACTION') . ' ' . $manage;
     } else {
         $message .= ' ' . $link;
     }
     $pubtitle = \Hubzero\Utility\String::truncate($pub->title, 100);
     $subject = ucfirst(Lang::txt('COM_PUBLICATIONS_CURATION_VERSION')) . ' ' . $pub->version_label . ' ' . Lang::txt('COM_PUBLICATIONS_OF') . ' ' . strtolower(Lang::txt('COM_PUBLICATIONS_PUBLICATION')) . ' "' . $pubtitle . '" ';
     $subject .= $status == 1 ? Lang::txt('COM_PUBLICATIONS_MSG_ADMIN_PUBLISHED') : Lang::txt('COM_PUBLICATIONS_MSG_ADMIN_KICKED_BACK');
     // Get authors
     $authors = $pub->table('Author')->getAuthors($pub->version_id, 1, 1, 1);
     // No authors – send to publication creator
     if (count($authors) == 0) {
         $authors = array($pub->created_by);
     }
     // New version released?
     if ($status == 1 && $pub->get('version_number') > 1) {
         // Notify subsrcibers
         Event::trigger('publications.onWatch', array($pub));
     }
     // Make sure there are no duplicates
     $authors = array_unique($authors);
     // Notify authors
     Helpers\Html::notify($pub, $authors, $subject, $message, true);
     return;
 }

 /**
  * Get the content of the entry
  *
  * @param	   string  $as		Format to return state in [text, number]
  * @param	   integer $shorten Number of characters to shorten text to
  * @return	   string
  */
 public function content($as = 'parsed', $shorten = 0)
 {
     $as = strtolower($as);
     $options = array();
     switch ($as) {
         case 'parsed':
             $content = $this->get('comment.parsed', null);
             if ($content === null) {
                 $config = array('option' => $this->get('option', 'com_projects'), 'scope' => $this->get('scope'), 'pagename' => $this->get('alias'), 'pageid' => 0, 'filepath' => $this->get('path'), 'domain' => '');
                 $content = str_replace(array('\\"', "\\'"), array('"', "'"), (string) $this->get('comment', ''));
                 $this->importPlugin('content')->trigger('onContentPrepare', array($this->_context, &$this, &$config));
                 $this->set('comment.parsed', (string) $this->get('comment', ''));
                 $this->set('comment', $content);
                 return $this->content($as, $shorten);
             }
             $options['html'] = true;
             break;
         case 'clean':
             $content = strip_tags($this->content('parsed'));
             break;
         case 'raw':
         default:
             $content = str_replace(array('\\"', "\\'"), array('"', "'"), $this->get('comment'));
             $content = preg_replace('/^(<!-- \\{FORMAT:.*\\} -->)/i', '', $content);
             break;
     }
     if ($shorten) {
         $content = \Hubzero\Utility\String::truncate($content, $shorten, $options);
     }
     return $content;
 }

        $when = Date::of($row->proposed)->relative();
        $title = strip_tags($row->about) ? $this->escape(stripslashes($row->subject)) . ' :: ' . \Hubzero\Utility\String::truncate($this->escape(strip_tags($row->about)), 160) : NULL;
        ?>
			<li class="wishlist">
				<a href="<?php 
        echo Route::url('index.php?option=com_wishlist&task=wish&id=' . $row->wishlist . '&wishid=' . $row->id);
        ?>
" class="tooltips" title="<?php 
        echo $title;
        ?>
">
					#<?php 
        echo $row->id;
        ?>
: <?php 
        echo \Hubzero\Utility\String::truncate(stripslashes($row->subject), 35);
        ?>
				</a>
				<span>
					<span class="<?php 
        echo $row->status == 3 ? 'rejected' : '';
        if ($row->status == 0) {
            echo $row->accepted == 1 ? 'accepted' : 'pending';
        }
        ?>
">
						<?php 
        echo $row->status == 3 ? Lang::txt('MOD_MYWISHES_REJECTED') : '';
        if ($row->status == 0) {
            echo $row->accepted == 1 ? Lang::txt('MOD_MYWISHES_ACCEPTED') : Lang::txt('MOD_MYWISHES_PENDING');
        }

		</dd>
<?php 
    }
    if ($params->get('show_author') or $params->get('show_category') or $params->get('show_create_date') or $params->get('show_modify_date') or $params->get('show_publish_date') or $params->get('show_hits')) {
        ?>
	</dl>
<?php 
    }
    ?>

<?php 
    if ($params->get('show_intro')) {
        ?>
	<div class="intro">
		<?php 
        echo \Hubzero\Utility\String::truncate($item->introtext, $params->get('introtext_limit'));
        ?>
	</div>
<?php 
    }
    ?>
	</li>
<?php 
}
?>
</ul>

<div class="pagination">
	<p class="counter">
		<?php 
echo $this->pagination->getPagesCounter();

            echo $this->escape(stripslashes($this->title));
            ?>
" />
					</a>
				</p>
			<?php 
        }
        ?>
			<p>
				<a href="<?php 
        echo Route::url('index.php?option=com_members&id=' . $this->id);
        ?>
">
					<?php 
        echo $this->escape(stripslashes($this->title));
        ?>
				</a>:
				<?php 
        if ($this->txt) {
            ?>
					<?php 
            echo \Hubzero\Utility\String::truncate($this->escape(strip_tags($this->txt)), $this->txt_length);
            ?>
				<?php 
        }
        ?>
			</p>
		</div>
	<?php 
    }
}

 /**
  * Generate an RSS feed of entries
  *
  * @return  void
  */
 public function feedTask()
 {
     if (!$this->config->get('feeds_enabled')) {
         App::redirect(Route::url('index.php?option=' . $this->_option));
         return;
     }
     // Set the mime encoding for the document
     Document::setType('feed');
     // Start a new feed object
     $doc = Document::instance();
     $doc->link = Route::url('index.php?option=' . $this->_option);
     // Incoming
     $filters = array('year' => Request::getInt('year', 0), 'month' => Request::getInt('month', 0), 'scope' => $this->config->get('show_from', 'site'), 'scope_id' => 0, 'search' => Request::getVar('search', ''), 'authorized' => false, 'state' => 1, 'access' => User::getAuthorisedViewLevels());
     if ($filters['year'] > date("Y")) {
         $filters['year'] = 0;
     }
     if ($filters['month'] > 12) {
         $filters['month'] = 0;
     }
     if ($filters['scope'] == 'both') {
         $filters['scope'] = '';
     }
     if (!User::isGuest()) {
         if ($this->config->get('access-manage-component')) {
             //$filters['state'] = null;
             $filters['authorized'] = true;
             array_push($filters['access'], 5);
         }
     }
     // Build some basic RSS document information
     $doc->title = Config::get('sitename') . ' - ' . Lang::txt(strtoupper($this->_option));
     $doc->title .= $filters['year'] ? ': ' . $filters['year'] : '';
     $doc->title .= $filters['month'] ? ': ' . sprintf("%02d", $filters['month']) : '';
     $doc->description = Lang::txt('COM_BLOG_RSS_DESCRIPTION', Config::get('sitename'));
     $doc->copyright = Lang::txt('COM_BLOG_RSS_COPYRIGHT', date("Y"), Config::get('sitename'));
     $doc->category = Lang::txt('COM_BLOG_RSS_CATEGORY');
     // Get the records
     $rows = $this->model->entries($filters)->ordered()->paginated()->rows();
     // Start outputing results if any found
     if ($rows->count() > 0) {
         foreach ($rows as $row) {
             $item = new \Hubzero\Document\Type\Feed\Item();
             // Strip html from feed item description text
             $item->description = $row->content();
             $item->description = html_entity_decode(Sanitize::stripAll($item->description));
             if ($this->config->get('feed_entries') == 'partial') {
                 $item->description = String::truncate($item->description, 300);
             }
             $item->description = '<![CDATA[' . $item->description . ']]>';
             // Load individual item creator class
             $item->title = html_entity_decode(strip_tags($row->get('title')));
             $item->link = Route::url($row->link());
             $item->date = date('r', strtotime($row->published()));
             $item->category = '';
             $item->author = $row->creator()->get('email') . ' (' . $row->creator()->get('name') . ')';
             // Loads item info into rss array
             $doc->addItem($item);
         }
     }
 }

 /**
  * Generate macro output
  *
  * @return     string
  */
 public function render()
 {
     // check if we can render
     if (!parent::canRender()) {
         return \Lang::txt('[This macro is designed for Groups only]');
     }
     // get args
     $args = $this->getArgs();
     // get details
     $type = $this->_getType($args, 'all');
     $limit = $this->_getLimit($args, 5);
     $class = $this->_getClass($args);
     //get resources
     $groupResources = $this->_getResources($type, $limit);
     $html = '<div class="resources ' . $class . '">';
     foreach ($groupResources as $resource) {
         $area = strtolower(preg_replace("/[^a-zA-Z0-9]/", '', $resource->area));
         $resourceLink = \Route::url('index.php?option=com_resources&id=' . $resource->id);
         $resourceTypeLink = \Route::url('index.php?option=com_groups&cn=' . $this->group->get('cn') . '&active=resources&area=' . $area);
         $html .= '<a href="' . $resourceLink . '"><strong>' . $resource->title . '</strong></a>';
         $html .= '<p class="category"> in: <a href="' . $resourceTypeLink . '">' . $resource->area . '</a></p>';
         $html .= '<p>' . \Hubzero\Utility\String::truncate($resource->itext) . '</p>';
     }
     $html .= '</div>';
     return $html;
 }

     // Does this category have a unique output display?
     $func = 'plgWhatsnew' . ucfirst($row->section) . 'Out';
     // Check if a method exist (using JPlugin style)
     $obj = 'plgWhatsnew' . ucfirst($this->cats[$k]['category']);
     if (function_exists($func)) {
         $html .= $func($row, $this->period);
     } elseif (method_exists($obj, 'out')) {
         $html .= call_user_func(array($obj, 'out'), $row, $this->period);
     } else {
         if (strstr($row->href, 'index.php')) {
             $row->href = Route::url($row->href);
         }
         $html .= "\t" . '<li>' . "\n";
         $html .= "\t\t" . '<p class="title"><a href="' . $row->href . '">' . stripslashes($row->title) . '</a></p>' . "\n";
         if ($row->text) {
             $html .= "\t\t" . '<p>' . \Hubzero\Utility\String::truncate(strip_tags(\Hubzero\Utility\Sanitize::stripAll(stripslashes($row->text))), 200) . '</p>' . "\n";
         }
         $html .= "\t\t" . '<p class="href">' . rtrim(Request::getSchemeAndHttpHost(), '/') . '/' . ltrim($row->href, '/') . '</p>' . "\n";
         $html .= "\t" . '</li>' . "\n";
     }
 }
 $html .= '</ol>' . "\n";
 // Initiate paging if we we're displaying an active category
 if ($dopaging) {
     $pageNav = $this->pagination($this->total, $this->start, $this->limit);
     $pageNav->setAdditionalUrlParam('category', urlencode(strToLower($this->active)));
     $pageNav->setAdditionalUrlParam('period', $this->period);
     $html .= $pageNav->render();
     $html .= '<div class="clearfix"></div>';
 } else {
     $html .= '<p class="moreresults">' . Lang::txt('COM_WHATSNEW_TOP_SHOWN', $amt);

 /**
  * Display an RSS feed of latest entries
  *
  * @return  string
  */
 private function _feed()
 {
     if (!$this->params->get('feeds_enabled', 1)) {
         return $this->_browse();
     }
     include_once PATH_CORE . DS . 'libraries' . DS . 'joomla' . DS . 'document' . DS . 'feed' . DS . 'feed.php';
     // Filters for returning results
     $filters = array('limit' => Request::getInt('limit', Config::get('list_limit')), 'start' => Request::getInt('limitstart', 0), 'year' => Request::getInt('year', 0), 'month' => Request::getInt('month', 0), 'scope' => 'group', 'scope_id' => $this->group->get('gidNumber'), 'search' => Request::getVar('search', ''), 'created_by' => Request::getInt('author', 0), 'state' => 'public');
     $path = Request::path();
     if (strstr($path, '/')) {
         $bits = $this->_parseUrl();
         $filters['year'] = isset($bits[0]) && is_numeric($bits[0]) ? $bits[0] : $filters['year'];
         $filters['month'] = isset($bits[1]) && is_numeric($bits[1]) ? $bits[1] : $filters['month'];
     }
     if ($filters['year'] > date("Y")) {
         $filters['year'] = 0;
     }
     if ($filters['month'] > 12) {
         $filters['month'] = 0;
     }
     // Set the mime encoding for the document
     Document::setType('feed');
     // Start a new feed object
     $doc = Document::instance();
     $doc->link = Route::url('index.php?option=' . $this->option . '&cn=' . $this->group->get('cn') . '&active=' . $this->_name);
     // Build some basic RSS document information
     $doc->title = Config::get('sitename') . ': ' . Lang::txt('Groups') . ': ' . stripslashes($this->group->get('description')) . ': ' . Lang::txt('Blog');
     $doc->description = Lang::txt('PLG_GROUPS_BLOG_RSS_DESCRIPTION', $this->group->get('cn'), Config::get('sitename'));
     $doc->copyright = Lang::txt('PLG_GROUPS_BLOG_RSS_COPYRIGHT', date("Y"), Config::get('sitename'));
     $doc->category = Lang::txt('PLG_GROUPS_BLOG_RSS_CATEGORY');
     $rows = $this->model->entries($filters)->ordered()->paginated()->rows();
     // Start outputing results if any found
     if ($rows->count() > 0) {
         foreach ($rows as $row) {
             $item = new \Hubzero\Document\Type\Feed\Item();
             // Strip html from feed item description text
             $item->description = $row->content;
             $item->description = \Hubzero\Utility\Sanitize::stripAll(strip_tags(html_entity_decode($item->description)));
             if ($this->params->get('feed_entries') == 'partial') {
                 $item->description = \Hubzero\Utility\String::truncate($item->description, 300);
             }
             $item->description = '<![CDATA[' . $item->description . ']]>';
             // Load individual item creator class
             $item->title = html_entity_decode(strip_tags($row->get('title')));
             $item->link = Route::url($row->link());
             $item->date = date('r', strtotime($row->published()));
             $item->category = '';
             $item->author = $row->creator()->get('name');
             // Loads item info into rss array
             $doc->addItem($item);
         }
     }
     // Output the feed
     echo $doc->render();
     exit;
 }