PHP StringUtil::substrHtml方法代码示例

 /**
  * Shorten a HTML string to a given number of characters.
  *
  * The function preserves words, so the result might be a bit shorter or
  * longer than the number of characters given. It preserves allowed tags.
  *
  * @param string  $strString        The string to shorten.
  * @param integer $intNumberOfChars The target number of characters.
  *
  * @return string The shortened HTML string
  */
 public static function substrHtml($strString, $intNumberOfChars)
 {
     if (self::isStringUtilAvailable()) {
         return StringUtil::substrHtml($strString, $intNumberOfChars);
     }
     return \Contao\String::substrHtml($strString, $intNumberOfChars);
 }

//.........这里部分代码省略.........
                        list($strTable, $strField) = explode('.', $strTable);
                        $objRef = $this->Database->prepare("SELECT " . $strField . " FROM " . $strTable . " WHERE id=?")->limit(1)->execute($row[$strKey]);
                        $args[$k] = $objRef->numRows ? $objRef->{$strField} : '';
                    } elseif (in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$v]['flag'], array(5, 6, 7, 8, 9, 10))) {
                        if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$v]['eval']['rgxp'] == 'date') {
                            $args[$k] = $row[$v] ? \Date::parse(\Config::get('dateFormat'), $row[$v]) : '-';
                        } elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$v]['eval']['rgxp'] == 'time') {
                            $args[$k] = $row[$v] ? \Date::parse(\Config::get('timeFormat'), $row[$v]) : '-';
                        } else {
                            $args[$k] = $row[$v] ? \Date::parse(\Config::get('datimFormat'), $row[$v]) : '-';
                        }
                    } elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$v]['inputType'] == 'checkbox' && !$GLOBALS['TL_DCA'][$this->strTable]['fields'][$v]['eval']['multiple']) {
                        $args[$k] = $row[$v] != '' ? $GLOBALS['TL_DCA'][$table]['fields'][$v]['label'][0] : '';
                    } else {
                        $row_v = deserialize($row[$v]);
                        if (is_array($row_v)) {
                            $args_k = array();
                            foreach ($row_v as $option) {
                                $args_k[] = $GLOBALS['TL_DCA'][$table]['fields'][$v]['reference'][$option] ?: $option;
                            }
                            $args[$k] = implode(', ', $args_k);
                        } elseif (isset($GLOBALS['TL_DCA'][$table]['fields'][$v]['reference'][$row[$v]])) {
                            $args[$k] = is_array($GLOBALS['TL_DCA'][$table]['fields'][$v]['reference'][$row[$v]]) ? $GLOBALS['TL_DCA'][$table]['fields'][$v]['reference'][$row[$v]][0] : $GLOBALS['TL_DCA'][$table]['fields'][$v]['reference'][$row[$v]];
                        } elseif (($GLOBALS['TL_DCA'][$table]['fields'][$v]['eval']['isAssociative'] || array_is_assoc($GLOBALS['TL_DCA'][$table]['fields'][$v]['options'])) && isset($GLOBALS['TL_DCA'][$table]['fields'][$v]['options'][$row[$v]])) {
                            $args[$k] = $GLOBALS['TL_DCA'][$table]['fields'][$v]['options'][$row[$v]];
                        } else {
                            $args[$k] = $row[$v];
                        }
                    }
                }
                // Shorten the label it if it is too long
                $label = vsprintf($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['format'] ?: '%s', $args);
                if ($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['maxCharacters'] > 0 && $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['maxCharacters'] < strlen(strip_tags($label))) {
                    $label = trim(\StringUtil::substrHtml($label, $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['maxCharacters'])) . ' …';
                }
                // Remove empty brackets (), [], {}, <> and empty tags from the label
                $label = preg_replace('/\\( *\\) ?|\\[ *\\] ?|\\{ *\\} ?|< *> ?/', '', $label);
                $label = preg_replace('/<[^>]+>\\s*<\\/[^>]+>/', '', $label);
                // Build the sorting groups
                if ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] > 0) {
                    $current = $row[$firstOrderBy];
                    $orderBy = $GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['fields'];
                    $sortingMode = count($orderBy) == 1 && $firstOrderBy == $orderBy[0] && $GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['flag'] != '' && $GLOBALS['TL_DCA'][$this->strTable]['fields'][$firstOrderBy]['flag'] == '' ? $GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['flag'] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$firstOrderBy]['flag'];
                    $remoteNew = $this->formatCurrentValue($firstOrderBy, $current, $sortingMode);
                    // Add the group header
                    if (!$GLOBALS['TL_DCA'][$this->strTable]['list']['label']['showColumns'] && !$GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['disableGrouping'] && ($remoteNew != $remoteCur || $remoteCur === false)) {
                        $eoCount = -1;
                        $group = $this->formatGroupHeader($firstOrderBy, $remoteNew, $sortingMode, $row);
                        $remoteCur = $remoteNew;
                        $return .= '
  <tr>
    <td colspan="2" class="' . $groupclass . '">' . $group . '</td>
  </tr>';
                        $groupclass = 'tl_folder_list';
                    }
                }
                $return .= '
  <tr class="' . (++$eoCount % 2 == 0 ? 'even' : 'odd') . ' click2edit toggle_select hover-row">
    ';
                $colspan = 1;
                // Call the label_callback ($row, $label, $this)
                if (is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['label_callback']) || is_callable($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['label_callback'])) {
                    if (is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['label_callback'])) {
                        $strClass = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['label_callback'][0];
                        $strMethod = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['label_callback'][1];
                        $this->import($strClass);

//.........这里部分代码省略.........
             $objFile = new \File($strCacheFile);
             if ($objFile->mtime > time() - 1800) {
                 $arrResult = json_decode($objFile->getContent(), true);
             } else {
                 $objFile->delete();
             }
         }
         // Cache the result
         if ($arrResult === null) {
             try {
                 $objSearch = \Search::searchFor($strKeywords, $strQueryType == 'or', $arrPages, 0, 0, $blnFuzzy);
                 $arrResult = $objSearch->fetchAllAssoc();
             } catch (\Exception $e) {
                 $this->log('Website search failed: ' . $e->getMessage(), __METHOD__, TL_ERROR);
                 $arrResult = array();
             }
             \File::putContent($strCacheFile, json_encode($arrResult));
         }
         $query_endtime = microtime(true);
         // Sort out protected pages
         if (\Config::get('indexProtected') && !BE_USER_LOGGED_IN) {
             $this->import('FrontendUser', 'User');
             foreach ($arrResult as $k => $v) {
                 if ($v['protected']) {
                     if (!FE_USER_LOGGED_IN) {
                         unset($arrResult[$k]);
                     } else {
                         $groups = \StringUtil::deserialize($v['groups']);
                         if (!is_array($groups) || empty($groups) || !count(array_intersect($groups, $this->User->groups))) {
                             unset($arrResult[$k]);
                         }
                     }
                 }
             }
             $arrResult = array_values($arrResult);
         }
         $count = count($arrResult);
         $this->Template->count = $count;
         $this->Template->page = null;
         $this->Template->keywords = $strKeywords;
         // No results
         if ($count < 1) {
             $this->Template->header = sprintf($GLOBALS['TL_LANG']['MSC']['sEmpty'], $strKeywords);
             $this->Template->duration = substr($query_endtime - $query_starttime, 0, 6) . ' ' . $GLOBALS['TL_LANG']['MSC']['seconds'];
             return;
         }
         $from = 1;
         $to = $count;
         // Pagination
         if ($this->perPage > 0) {
             $id = 'page_s' . $this->id;
             $page = \Input::get($id) !== null ? \Input::get($id) : 1;
             $per_page = \Input::get('per_page') ?: $this->perPage;
             // Do not index or cache the page if the page number is outside the range
             if ($page < 1 || $page > max(ceil($count / $per_page), 1)) {
                 throw new PageNotFoundException('Page not found: ' . \Environment::get('uri'));
             }
             $from = ($page - 1) * $per_page + 1;
             $to = $from + $per_page > $count ? $count : $from + $per_page - 1;
             // Pagination menu
             if ($to < $count || $from > 1) {
                 $objPagination = new \Pagination($count, $per_page, \Config::get('maxPaginationLinks'), $id);
                 $this->Template->pagination = $objPagination->generate("\n  ");
             }
             $this->Template->page = $page;
         }
         // Get the results
         for ($i = $from - 1; $i < $to && $i < $count; $i++) {
             /** @var FrontendTemplate|object $objTemplate */
             $objTemplate = new \FrontendTemplate($this->searchTpl);
             $objTemplate->url = $arrResult[$i]['url'];
             $objTemplate->link = $arrResult[$i]['title'];
             $objTemplate->href = $arrResult[$i]['url'];
             $objTemplate->title = \StringUtil::specialchars($arrResult[$i]['title']);
             $objTemplate->class = ($i == $from - 1 ? 'first ' : '') . ($i == $to - 1 || $i == $count - 1 ? 'last ' : '') . ($i % 2 == 0 ? 'even' : 'odd');
             $objTemplate->relevance = sprintf($GLOBALS['TL_LANG']['MSC']['relevance'], number_format($arrResult[$i]['relevance'] / $arrResult[0]['relevance'] * 100, 2) . '%');
             $objTemplate->filesize = $arrResult[$i]['filesize'];
             $objTemplate->matches = $arrResult[$i]['matches'];
             $arrContext = array();
             $arrMatches = \StringUtil::trimsplit(',', $arrResult[$i]['matches']);
             // Get the context
             foreach ($arrMatches as $strWord) {
                 $arrChunks = array();
                 preg_match_all('/(^|\\b.{0,' . $this->contextLength . '}\\PL)' . str_replace('+', '\\+', $strWord) . '(\\PL.{0,' . $this->contextLength . '}\\b|$)/ui', $arrResult[$i]['text'], $arrChunks);
                 foreach ($arrChunks[0] as $strContext) {
                     $arrContext[] = ' ' . $strContext . ' ';
                 }
             }
             // Shorten the context and highlight all keywords
             if (!empty($arrContext)) {
                 $objTemplate->context = trim(\StringUtil::substrHtml(implode('…', $arrContext), $this->totalLength));
                 $objTemplate->context = preg_replace('/(\\PL)(' . implode('|', $arrMatches) . ')(\\PL)/ui', '$1<mark class="highlight">$2</mark>$3', $objTemplate->context);
                 $objTemplate->hasContext = true;
             }
             $this->Template->results .= $objTemplate->parse();
         }
         $this->Template->header = vsprintf($GLOBALS['TL_LANG']['MSC']['sResults'], array($from, $to, $count, $strKeywords));
         $this->Template->duration = substr($query_endtime - $query_starttime, 0, 6) . ' ' . $GLOBALS['TL_LANG']['MSC']['seconds'];
     }
 }