PHP JString::strlen方法代码示例

 public function display($tpl = null)
 {
     global $option, $mainframe;
     $user =& JFactory::getUser();
     $model = KFactory::get('admin::com.duuka.model.item');
     $item = $model->getItem();
     // fail if checked out not by 'me'
     if ($model->isCheckedOut($user->get('id'))) {
         $msg = JText::sprintf('DESCBEINGEDITTED', JText::_('The weblink'), $item->name);
         $mainframe->redirect('index.php?option=' . $option, $msg);
     }
     /*
      * We need to unify the introtext and fulltext fields and have the
      * fields separated by the {readmore} tag, so lets do that now.
      */
     if (JString::strlen($item->fulltext) > 1) {
         $item->text = $item->introtext . "<hr id=\"system-readmore\" />" . $item->fulltext;
     } else {
         $item->text = $item->introtext;
     }
     // Mixin a menubar object
     $this->mixin(new DuukaMixinMenu($this));
     $this->displayMenutitle();
     $this->displayToolbar();
     $this->displayMenubar();
     JRequest::setVar('hidemainmenu', 1);
     $this->assignRef('item', $item);
     // Display the layout
     parent::display($tpl);
 }

 public static function addCard(&$blog, $rawIntroText)
 {
     $cfg = EasyBlogHelper::getConfig();
     // @rule: Check if user really wants to append the opengraph tags on the headers.
     if (!$cfg->get('main_twitter_cards')) {
         return false;
     }
     // Get the absolute permalink for this blog item.
     $url = EasyBlogRouter::getRoutedURL('index.php?option=com_easyblog&view=entry&id=' . $blog->id, false, true);
     // Get the image of the blog post.
     $image = self::getImage($blog, $rawIntroText);
     // @task: Get Joomla's document object.
     $doc = JFactory::getDocument();
     // Add card definition.
     $doc->addCustomTag('<meta property="twitter:card" content="summary" />');
     $doc->addCustomTag('<meta property="twitter:url" content="' . $url . '" />');
     $doc->addCustomTag('<meta property="twitter:title" content="' . $blog->title . '" />');
     $text = EasyBlogHelper::stripEmbedTags($rawIntroText);
     $text = strip_tags($text);
     $text = str_ireplace("\r\n", "", $text);
     // Remove any " in the content as this would mess up the headers.
     $text = str_ireplace('"', '', $text);
     $maxLength = 137;
     if (!empty($maxLength)) {
         $text = JString::strlen($text) > $maxLength ? JString::substr($text, 0, $maxLength) . '...' : $text;
     }
     $text = EasyBlogStringHelper::escape($text);
     $doc->addCustomTag('<meta property="twitter:description" content="' . $text . '" />');
     if ($image) {
         $doc->addCustomTag('<meta property="twitter:image" content="' . $image . '"/> ');
     }
     return true;
 }

 /**
  * Description
  *
  * @param string SQL with ordering As value and 'name field' AS text
  * @param integer The length of the truncated headline
  * @since 1.5
  */
 function genericordering($sql, $chop = '30')
 {
     $db =& JFactory::getDBO();
     $order = array();
     $db->setQuery($sql);
     if (!($orders = $db->loadObjectList())) {
         if ($db->getErrorNum()) {
             echo $db->stderr();
             return false;
         } else {
             $order[] = JHTML::_('select.option', 1, JText::_('first'));
             return $order;
         }
     }
     $order[] = JHTML::_('select.option', 0, '0 ' . JText::_('first'));
     for ($i = 0, $n = count($orders); $i < $n; $i++) {
         if (JString::strlen($orders[$i]->text) > $chop) {
             $text = JString::substr($orders[$i]->text, 0, $chop) . "...";
         } else {
             $text = $orders[$i]->text;
         }
         $order[] = JHTML::_('select.option', $orders[$i]->value, $orders[$i]->value . ' (' . $text . ')');
     }
     $order[] = JHTML::_('select.option', $orders[$i - 1]->value + 1, $orders[$i - 1]->value + 1 . ' ' . JText::_('last'));
     return $order;
 }

 public function __construct(&$subject, $config)
 {
     parent::__construct($subject, $config);
     // Ensure that constructor is called one time
     self::$cookie = SID == '';
     if (!self::$default_lang) {
         $app = JFactory::getApplication();
         $router = $app->getRouter();
         if ($app->isSite()) {
             // setup language data
             self::$mode_sef = $router->getMode() == JROUTER_MODE_SEF ? true : false;
             self::$sefs = JLanguageHelper::getLanguages('sef');
             self::$lang_codes = JLanguageHelper::getLanguages('lang_code');
             self::$default_lang = JComponentHelper::getParams('com_languages')->get('site', 'en-GB');
             self::$default_sef = self::$lang_codes[self::$default_lang]->sef;
             $user = JFactory::getUser();
             $levels = $user->getAuthorisedViewLevels();
             foreach (self::$sefs as $sef => &$language) {
                 if (isset($language->access) && $language->access && !in_array($language->access, $levels)) {
                     unset(self::$sefs[$sef]);
                 }
             }
             $app->setLanguageFilter(true);
             jimport('joomla.environment.uri');
             $uri = JURI::getInstance();
             if (self::$mode_sef) {
                 // Get the route path from the request.
                 $path = JString::substr($uri->toString(), JString::strlen($uri->base()));
                 // Apache mod_rewrite is Off
                 $path = JFactory::getConfig()->get('sef_rewrite') ? $path : JString::substr($path, 10);
                 // Trim any spaces or slashes from the ends of the path and explode into segments.
                 $path = JString::trim($path, '/ ');
                 $parts = explode('/', $path);
                 // The language segment is always at the beginning of the route path if it exists.
                 $sef = $uri->getVar('lang');
                 if (!empty($parts) && empty($sef)) {
                     $sef = reset($parts);
                 }
             } else {
                 $sef = $uri->getVar('lang');
             }
             if (isset(self::$sefs[$sef])) {
                 $lang_code = self::$sefs[$sef]->lang_code;
                 // Create a cookie
                 $conf = JFactory::getConfig();
                 $cookie_domain = $conf->get('config.cookie_domain', '');
                 $cookie_path = $conf->get('config.cookie_path', '/');
                 setcookie(JApplication::getHash('language'), $lang_code, $this->getLangCookieTime(), $cookie_path, $cookie_domain);
                 $app->input->cookie->set(JApplication::getHash('language'), $lang_code);
                 // set the request var
                 $app->input->set('language', $lang_code);
             }
         }
         parent::__construct($subject, $config);
         // 	Detect browser feature
         if ($app->isSite()) {
             $app->setDetectBrowser($this->params->get('detect_browser', '1') == '1');
         }
     }
 }

 /**
  * Validates the username.
  *
  * @since	1.0
  * @access	public
  * @param	null
  * @return	JSON	A jsong encoded string.
  *
  * @author	Jason Rey <jasonrey@stackideas.com>
  */
 public function isValid()
 {
     // Render the ajax lib.
     $ajax = FD::getInstance('Ajax');
     // Get the userid
     $userid = JRequest::getInt('userid', 0);
     // Get the event
     $event = JRequest::getString('event');
     // Set the current username
     $current = '';
     if (!empty($userid)) {
         $user = FD::user($userid);
         $current = $user->username;
     }
     // Get the provided username that the user has typed.
     $username = JRequest::getVar('username', '');
     // Username is required, check if username is empty
     if (JString::strlen($username) < $this->params->get('min')) {
         return $ajax->reject(JText::sprintf('PLG_FIELDS_JOOMLA_USERNAME_MIN_CHARACTERS', $this->params->get('min')));
     }
     // Test if username is allowed (by pass for adminedit).
     if ($event !== 'onAdminEdit' && !SocialFieldsUserJoomlaUsernameHelper::allowed($username, $this->params)) {
         return $ajax->reject(JText::_('PLG_FIELDS_JOOMLA_USERNAME_NOT_ALLOWED'));
     }
     // Test if username exists.
     if (SocialFieldsUserJoomlaUsernameHelper::exists($username, $current)) {
         return $ajax->reject(JText::_('PLG_FIELDS_JOOMLA_USERNAME_NOT_AVAILABLE'));
     }
     // Test if the username is valid
     if (!SocialFieldsUserJoomlaUsernameHelper::isValid($username, $this->params)) {
         return $ajax->reject(JText::_('PLG_FIELDS_JOOMLA_USERNAME_IS_INVALID'));
     }
     $text = JText::_('PLG_FIELDS_JOOMLA_USERNAME_AVAILABLE');
     return $ajax->resolve($text);
 }

 /**
  * Sanitize a value
  *
  * @param   mixed   Value to be sanitized
  * @return  string
  */
 protected function _sanitize($value)
 {
     $value = parent::_sanitize($value);
     $search_ignore = array();
     // Limit term to 20 characters
     if (JString::strlen($value) > 20) {
         $value = JString::substr($value, 0, 19);
     }
     // Term must contain a minimum of 3 characters
     if ($value && JString::strlen($value) < 3) {
         $value = '';
     }
     //Filter out search terms that are too small
     $words = explode(' ', JString::strtolower($value));
     foreach ($words as $word) {
         if (JString::strlen($word) < 3) {
             $search_ignore[] = $word;
         }
     }
     if (count($words) > 1) {
         $pruned = array_diff($words, $search_ignore);
         $value = implode(' ', $pruned);
     }
     return $value;
 }

 /**
  * Returns an array of options
  *
  * @param   string   $sql		SQL with ordering As value and 'name field' AS text
  * @param   integer  $chop	The length of the truncated headline
  *
  * @return  array  An array of objects formatted for JHtml list processing
  * @since   11.1
  */
 public static function genericordering($sql, $chop = '30')
 {
     $db = JFactory::getDbo();
     $options = array();
     $db->setQuery($sql);
     $items = $db->loadObjectList();
     // Check for a database error.
     if ($db->getErrorNum()) {
         JError::raiseNotice(500, $db->getErrorMsg());
         return false;
     }
     if (empty($items)) {
         $options[] = JHtml::_('select.option', 1, JText::_('JOPTION_ORDER_FIRST'));
         return $options;
     }
     $options[] = JHtml::_('select.option', 0, '0 ' . JText::_('JOPTION_ORDER_FIRST'));
     for ($i = 0, $n = count($items); $i < $n; $i++) {
         $items[$i]->text = JText::_($items[$i]->text);
         if (JString::strlen($items[$i]->text) > $chop) {
             $text = JString::substr($items[$i]->text, 0, $chop) . "...";
         } else {
             $text = $items[$i]->text;
         }
         $options[] = JHtml::_('select.option', $items[$i]->value, $items[$i]->value . '. ' . $text);
     }
     $options[] = JHtml::_('select.option', $items[$i - 1]->value + 1, $items[$i - 1]->value + 1 . ' ' . JText::_('JOPTION_ORDER_LAST'));
     return $options;
 }

 function listDirectories($path, $regex = '.', $recurse = false)
 {
     $dirs = array();
     // Make sure path is valid
     jimport('joomla.filesystem.path');
     $path = JPath::clean($path);
     $root = strlen(JPATH_ROOT) ? JPATH_ROOT : DS;
     if (empty($path) || JString::strpos($path, $root) !== 0) {
         return $dirs;
     }
     // Find folders
     jimport('joomla.filesystem.folder');
     $list = JFolder::folders($path, $regex, $recurse, true);
     if (empty($list)) {
         return $dirs;
     }
     // Create list of directories and the names
     foreach ($list as $path) {
         //$folder	= JString::str_ireplace(JPATH_ROOT, '', $path);
         $folder = JString::substr($path, JString::strlen($root));
         $folder = substr(str_replace(DS, '/', $folder), 1);
         $name = @explode('/', $folder);
         $name = array_pop($name);
         $dirs[] = array('folder' => $folder, 'name' => $name, 'path' => $path, 'path.64' => base64_encode($path));
     }
     return $dirs;
 }

function DefaultViewEventCatRowNew($view, $row, $args = "")
{
    // I choost not to use $row->fgcolor()
    $fgcolor = "inherit";
    $router = JRouter::getInstance("site");
    $vars = $router->getVars();
    $vars["catids"] = $row->catid();
    if (array_key_exists("Itemid", $vars) && is_null($vars["Itemid"])) {
        $vars["Itemid"] = JRequest::getInt("Itemid", 0);
    }
    $eventlink = "index.php?";
    foreach ($vars as $key => $val) {
        $eventlink .= $key . "=" . $val . "&";
    }
    $eventlink = JString::substr($eventlink, 0, JString::strlen($eventlink) - 1);
    $eventlink = JRoute::_($eventlink);
    ?>
		<a class="ev_link_cat" href="<?php 
    echo $eventlink;
    ?>
"  style="color:<?php 
    echo $fgcolor;
    ?>
;" title="<?php 
    echo JEventsHTML::special($row->catname());
    ?>
"><?php 
    echo $row->catname();
    ?>
</a>
		<?php 
}

 public function execute($item)
 {
     $model = FD::model('comments');
     $users = $model->getParticipants($item->uid, $item->context_type);
     $users[] = $item->actor_id;
     $users = array_values(array_unique(array_diff($users, array(FD::user()->id))));
     $names = FD::string()->namesToNotifications($users);
     $plurality = count($users) > 1 ? '_PLURAL' : '_SINGULAR';
     $content = '';
     if (count($users) == 1 && !empty($item->content)) {
         $content = JString::substr(strip_tags($item->content), 0, 30);
         if (JString::strlen($item->content) > 30) {
             $content .= JText::_('COM_EASYSOCIAL_ELLIPSES');
         }
     }
     $item->content = $content;
     list($element, $group, $verb) = explode('.', $item->context_type);
     $streamItem = FD::table('streamitem');
     $state = $streamItem->load(array('context_type' => $element, 'actor_type' => $group, 'verb' => $verb, 'context_id' => $item->uid));
     if (!$state) {
         return;
     }
     $owner = $streamItem->actor_id;
     if ($item->target_type === SOCIAL_TYPE_USER && $item->target_id == $owner) {
         $item->title = JText::sprintf('APP_USER_ARTICLE_USER_COMMENTED_ON_YOUR_ITEM' . $plurality, $names);
         return $item;
     }
     if ($item->actor_id == $owner && count($users) == 1) {
         $item->title = JText::sprintf('APP_USER_ARTICLE_OWNER_COMMENTED_ON_ITEM' . FD::user($owner)->getGenderLang(), $names);
         return $item;
     }
     $item->title = JText::sprintf('APP_USER_ARTICLE_USER_COMMENTED_ON_USER_ITEM' . $plurality, $names, FD::user($owner)->getName());
     return $item;
 }

 function cutText($text, $limit_value, $limit_type, $at_end)
 {
     // solved problem from: https://www.gavick.com/support/forums/47/12309.html?p=57464#p57464
     $cck_path = JPATH_BASE . DS . 'components' . DS . 'com_cck';
     if (file_exists($cck_path)) {
         if (JComponentHelper::isEnabled('com_cck', true)) {
             // Force parsing plugin if SEBLOD is used
             if ($this->config['parse_plugins'] == FALSE) {
                 $text = JHtml::_('content.prepare', $text);
             }
             $text = trim(substr(strip_tags($text, "<br /><br><strong></strong><p></p><i></i><b></b><span></span><ul></ul><li></li><blockquote></blockquote>"), 0));
         }
     }
     if ($limit_type == 'words' && $limit_value > 0) {
         $temp = explode(' ', $text);
         if (count($temp) > $limit_value) {
             for ($i = 0; $i < $limit_value; $i++) {
                 $cutted[$i] = $temp[$i];
             }
             $cutted = implode(' ', $cutted);
             $text = $cutted . $at_end;
         }
     } elseif ($limit_type == 'words' && $limit_value == 0) {
         return '';
     } else {
         if (JString::strlen($text) > $limit_value) {
             $text = JString::substr($text, 0, $limit_value) . $at_end;
         }
     }
     // replace unnecessary entities at end of the cutted text
     $toReplace = array('&&', '&a&', '&am&', '&amp&', '&q&', '&qu&', '&quo&', '&quot&', '&ap&', '&apo&', '&apos&');
     $text = str_replace($toReplace, '&', $text);
     //
     return $text;
 }

 /**
  * Outputs the html code for Twitter button
  *
  * @since	4.0
  * @access	public
  * @param	string
  * @return
  */
 public function html()
 {
     if (!$this->isEnabled()) {
         return;
     }
     $this->addScript();
     // Get the pinterest button style from the configuration
     $size = $this->getButtonSize();
     $url = EBR::getRoutedURL('index.php?option=com_easyblog&view=entry&id=' . $this->post->id, false, true);
     // Combine the introtext and the content
     $content = $this->post->intro . $this->post->content;
     // Get the media
     $media = $this->getMedia();
     $contentLength = 350;
     $text = $this->post->intro . $this->post->content;
     $text = nl2br($text);
     $text = strip_tags($text);
     $text = trim(preg_replace('/\\s+/', ' ', $text));
     $text = JString::strlen($text) > $contentLength ? JString::substr($text, 0, $contentLength) . '...' : $text;
     $title = $this->post->title;
     // Urlencode all the necessary properties.
     $url = urlencode($url);
     $text = urlencode($text);
     $media = urlencode($media);
     $placeholder = $this->getPlaceholderId();
     $theme = EB::template();
     $theme->set('size', $size);
     $theme->set('placeholder', $placeholder);
     $theme->set('url', $url);
     $theme->set('title', $title);
     $theme->set('media', $media);
     $theme->set('text', $text);
     $output = $theme->output('site/socialbuttons/pinterest');
     return $output;
 }

 public function onAfterReply($message)
 {
     if (JString::strlen($message->message) > $this->params->get('activity_points_limit', 0)) {
         CFactory::load('libraries', 'userpoints');
         CUserPoints::assignPoint('com_kunena.thread.reply');
     }
     $content = KunenaHtmlParser::plainBBCode($message->message, $this->params->get('activity_stream_limit', 0));
     // Add readmore permalink
     $content .= '<br /><a rel="nofollow" href="' . $message->getTopic()->getPermaUrl() . '" class="small profile-newsfeed-item-action">' . JText::_('COM_KUNENA_READMORE') . '</a>';
     $act = new stdClass();
     $act->cmd = 'wall.write';
     $act->actor = $message->userid;
     $act->target = 0;
     // no target
     $act->title = JText::_('{single}{actor}{/single}{multiple}{actors}{/multiple} ' . JText::sprintf('PLG_KUNENA_COMMUNITY_ACTIVITY_REPLY_TITLE', '<a href="' . $message->getTopic()->getUrl() . '">' . $message->subject . '</a>'));
     $act->content = $content;
     $act->app = 'kunena.post';
     $act->cid = $message->thread;
     $act->access = $this->getAccess($message->getCategory());
     // Comments and like support
     $act->comment_id = $message->thread;
     $act->comment_type = 'kunena.post';
     $act->like_id = $message->thread;
     $act->like_type = 'kunena.post';
     // Do not add private activities
     if ($act->access > 20) {
         return;
     }
     CFactory::load('libraries', 'activities');
     CActivityStream::add($act);
 }

 public static function getList($params)
 {
     $db = JFactory::getDBO();
     $db->setQuery("SELECT * FROM #__jcomments ORDER BY date DESC", 0, $params->get('count'));
     $items = $db->loadObjectList();
     if (!is_array($items)) {
         $items = array();
     }
     if (count($items)) {
         $config = JCommentsFactory::getConfig();
         $bbcode = JCommentsFactory::getBBCode();
         $limit_comment_text = (int) $params->get('limit_comment_text', 0);
         foreach ($items as &$item) {
             $item->link = 'index.php?option=com_jcomments&&view=comment&layout=edit&id=' . $item->id;
             $item->author = JComments::getCommentAuthorName($item);
             $text = JCommentsText::censor($item->comment);
             $text = $bbcode->filter($text, true);
             $text = JCommentsText::cleanText($text);
             if ($limit_comment_text && JString::strlen($text) > $limit_comment_text) {
                 $text = self::truncateText($text, $limit_comment_text - 1);
             }
             $item->comment = $text;
         }
     }
     return $items;
 }

 /**
  * Get sub string (by words)
  * @param $text
  * @param $searchword
  * @return mixed|string
  */
 public function smartSubstr($text, $searchword)
 {
     $length = self::MAX_LENGTH;
     $textlen = JString::strlen($text);
     $lsearchword = JString::strtolower($searchword);
     $wordfound = false;
     $pos = 0;
     $chunk = '';
     while ($wordfound === false && $pos < $textlen) {
         if (($wordpos = @JString::strpos($text, ' ', $pos + $length)) !== false) {
             $chunk_size = $wordpos - $pos;
         } else {
             $chunk_size = $length;
         }
         $chunk = JString::substr($text, $pos, $chunk_size);
         $wordfound = JString::strpos(JString::strtolower($chunk), $lsearchword);
         if ($wordfound === false) {
             $pos += $chunk_size + 1;
         }
     }
     if ($wordfound !== false) {
         return ($pos > 0 ? '...' : '') . $chunk;
     } elseif (($wordpos = @JString::strpos($text, ' ', $length)) !== false) {
         return JString::substr($text, 0, $wordpos) . '...';
     } else {
         return JString::substr($text, 0, $length);
     }
 }