PHP truncate_text函数代码示例

 private function show_message_overview()
 {
     if (($message_count = $this->model->count_messages()) === false) {
         $this->output->add_tag("result", "Database error.");
         return false;
     }
     $paging = new pagination($this->output, "admin_forum", $this->settings->admin_page_size, $message_count);
     if (($messages = $this->model->get_messages($paging->offset, $paging->size)) === false) {
         $this->output->add_tag("result", "Database error.");
         return;
     }
     $this->output->open_tag("overview");
     $this->output->open_tag("messages");
     foreach ($messages as $message) {
         $message["content"] = truncate_text($message["content"], 400);
         $message["timestamp"] = date("j F Y, H:i", $message["timestamp"]);
         if ($message["author"] == "") {
             $message["author"] = $message["username"];
         }
         $this->output->record($message, "message");
     }
     $this->output->close_tag();
     $paging->show_browse_links();
     $this->output->close_tag();
 }

 public function show_faq_overview()
 {
     if (($sections = $this->model->get_all_sections()) === false) {
         $this->output->add_tag("result", "Database error.");
         return;
     } else {
         if (($faqs = $this->model->get_all_faqs()) === false) {
             $this->output->add_tag("result", "Database error.");
             return;
         }
     }
     $this->output->open_tag("overview");
     $this->output->open_tag("sections");
     foreach ($sections as $section) {
         $this->output->add_tag("section", $section["label"], array("id" => $section["id"]));
     }
     $this->output->close_tag();
     $this->output->open_tag("faqs");
     foreach ($faqs as $faq) {
         $faq["question"] = truncate_text($faq["question"], 140);
         $this->output->record($faq, "faq");
     }
     $this->output->close_tag();
     $this->output->close_tag();
 }

 public function execute()
 {
     if ($_SERVER["REQUEST_METHOD"] == "POST") {
         /* Delete message
          */
         if ($this->model->delete_message($_POST["id"])) {
             $this->user->log_action("guestbook entry %d deleted", $_POST["id"]);
         }
     }
     handle_table_sort("adminguestbook_order", array("author", "message", "timestamp", "ip_address"), array("timestamp", "author"));
     $paging = new pagination($this->output, "admin_guestbook", $this->settings->admin_page_size, $message_count);
     if (($guestbook = $this->model->get_messages($_SESSION["adminguestbook_order"], $paging->offset, $paging->size)) === false) {
         $this->output->add_tag("result", "Database error.");
         return;
     }
     $this->output->open_tag("guestbook");
     foreach ($guestbook as $item) {
         $item["message"] = truncate_text($item["message"], 45);
         if ($this->output->mobile) {
             $item["timestamp"] = date("Y-m-d", $item["timestamp"]);
         } else {
             $item["timestamp"] = date("j F Y, H:i", $item["timestamp"]);
         }
         $this->output->record($item, "item");
     }
     $paging->show_browse_links();
     $this->output->close_tag();
 }

 public static function extractSummaryArray($body, $min, $total)
 {
     //replace whitespaces with space
     $body = preg_replace("/(\\r?\\n[ \\t]*)+/", " ", $body);
     //find paragraphs
     $matches = array();
     preg_match_all("/<p>(.+)<\\/p>/isU", $body, $matches, PREG_SET_ORDER);
     //put paragraphs to a fresh array and calculate total length
     $total_length = 0;
     $paragraphs = array();
     foreach ($matches as $match) {
         $len = 0;
         if (($len = strlen($match[1])) > $min) {
             $paragraphs[] = $match[1];
             $total_length += strlen($match[1]);
         }
     }
     //chop paragraphs
     sfLoader::loadHelpers('Text');
     $final = array();
     for ($i = 0; $i < sizeof($paragraphs); $i++) {
         $share = (int) ($total * strlen($paragraphs[$i]) / $total_length);
         if ($share < $min) {
             $total_length -= strlen($paragraphs[$i]);
             continue;
         }
         $final[] = truncate_text($paragraphs[$i], $share, "", true);
     }
     return $final;
 }

function truncate_description($description, $route, $length = 500, $has_abstract = false)
{
    if ($has_abstract) {
        $description = extract_abstract($description);
    }
    $more = '... <span class="more_text">' . link_to('[' . __('Read more') . ']', $route) . '</span>';
    return parse_links(parse_bbcode_simple(truncate_text($description, $length, $more)));
}

 public function execute()
 {
     if ($this->user->logged_in == false) {
         unset($this->sections["mail"]);
     }
     if (isset($_SESSION["search"]) == false) {
         $_SESSION["search"] = array();
         foreach ($this->sections as $section => $label) {
             $_SESSION["search"][$section] = true;
         }
     }
     if ($_SERVER["REQUEST_METHOD"] == "POST") {
         $this->log_search_query($_POST["query"]);
         foreach ($this->sections as $section => $label) {
             $_SESSION["search"][$section] = is_true($_POST[$section]);
         }
     }
     $this->output->add_css("banshee/js_pagination.css");
     $this->output->add_javascript("banshee/pagination.js");
     $this->output->add_javascript("search.js");
     $this->output->run_javascript("document.getElementById('query').focus()");
     $this->output->add_tag("query", $_POST["query"]);
     $this->output->open_tag("sections");
     foreach ($this->sections as $section => $label) {
         $params = array("label" => $label, "checked" => show_boolean($_SESSION["search"][$section]));
         $this->output->add_tag("section", $section, $params);
     }
     $this->output->close_tag();
     if ($_SERVER["REQUEST_METHOD"] == "POST") {
         if (strlen(trim($_POST["query"])) < 3) {
             $this->output->add_tag("result", "Search query too short.");
         } else {
             if (($result = $this->model->search($_POST, $this->sections)) === false) {
                 /* Error
                  */
                 $this->output->add_tag("result", "Search error.");
             } else {
                 if (count($result) == 0) {
                     $this->output->add_tag("result", "No matches found.");
                 } else {
                     /* Results
                      */
                     foreach ($result as $section => $hits) {
                         $this->output->open_tag("section", array("section" => $section, "label" => $this->sections[$section]));
                         foreach ($hits as $hit) {
                             $hit["text"] = strip_tags($hit["text"]);
                             $hit["content"] = strip_tags($hit["content"]);
                             $hit["content"] = preg_replace('/\\[.*?\\]/', "", $hit["content"]);
                             $hit["content"] = truncate_text($hit["content"], 400);
                             $this->output->record($hit, "hit");
                         }
                         $this->output->close_tag();
                     }
                 }
             }
         }
     }
 }

/**
* creates a link to related schema property
*
* @return none
* @param  schemaproperty $property
*/
function link_to_related_property($property)
{
    $relPropertyId = $property->getIsSubpropertyOf();
    $relPropertyUri = $property->getParentUri();
    if ($relPropertyId) {
        //get the related concept
        $relProperty = SchemaPropertyPeer::retrieveByPK($relPropertyId);
        if ($relProperty) {
            return link_to($relProperty->getLabel(), 'schemaprop/show/?id=' . $relPropertyId, ['title' => $relPropertyUri]);
        }
    }
    //if all else fails we display a truncated = 30 value
    return truncate_text($property->getParentUri(), 30);
}

 private function show_mails($mails, $column)
 {
     $this->output->open_tag("mailbox", array("column" => $column));
     foreach ($mails as $mail) {
         $mail["subject"] = truncate_text($mail["subject"], 55);
         if ($this->mobile) {
             $mail["timestamp"] = date_string("Y-m-d", $mail["timestamp"]);
         } else {
             $mail["timestamp"] = date_string("l, j F Y H:i:s", $mail["timestamp"]);
         }
         $mail["read"] = $mail["read"] == YES ? "read" : "unread";
         $this->output->record($mail, "mail");
     }
     $this->output->close_tag();
 }

 /**
  * generate Wildcard.. truncate if necessary, $pUrl is optional
  *
  * @param YiidActivity $pActivity
  * @return string
  */
 public function generateMessage($pActivity)
 {
     sfProjectConfiguration::getActive()->loadHelpers('Text');
     $lUrl = ShortUrlTable::shortenUrl($pActivity->generateUrlWithClickbackParam($this->onlineIdentity));
     $lMaxChars = 135;
     $lText = $lUrl;
     $lLengthOfText = strlen($lText);
     if ($pActivity->getComment()) {
         $lChars = $lMaxChars - $lLengthOfText;
         $lText = truncate_text($pActivity->getComment(), $lChars, '...') . " " . $lText;
     } elseif ($pActivity->getTitle()) {
         $lChars = $lMaxChars - $lLengthOfText;
         $lText = truncate_text($pActivity->getTitle(), $lChars, '...') . " " . $lText;
     }
     return array("status" => $lText);
 }

/**
 * creates a link to related concept
 *
 * @return none
 * @param  conceptproperty $property
 */
function link_to_related($property)
{
    $relConceptId = $property->getRelatedConceptId();
    if ($relConceptId) {
        //get the related concept
        $relConcept = ConceptPeer::retrieveByPK($relConceptId);
        if ($relConcept) {
            return link_to($relConcept->getPrefLabel(), 'concept/show/?id=' . $relConceptId);
        }
    }
    //If the skosProperty.objectType is resource then we display a truncated URI with a complete link_to
    if ($property->getProfileProperty()->getIsObjectProp()) {
        return link_to(truncate_text($property->getObject(), 30), $property->getObject());
    }
    //if all else fails we display a truncated = 30 value
    return truncate_text($property->getObject(), 30);
}

 public function summarize($body)
 {
     $matches = array();
     preg_match_all("/<p>(.+)<\\/p>/isU", $body, $matches, PREG_SET_ORDER);
     $paragraphs = array();
     foreach ($matches as $match) {
         $paragraphs[] = preg_replace("/(\\r?\\n[ \\t]*)+/", " ", strip_tags($match[1]));
     }
     $total = $this->total($paragraphs);
     foreach ($paragraphs as $i => $paragraph) {
         if (strlen($paragraph) / $total * 100 < $this->threshold) {
             unset($paragraphs[$i]);
         }
     }
     $total = $this->total($paragraphs);
     $spaces = count($paragraphs) - 1;
     foreach ($paragraphs as $i => $paragraph) {
         $paragraphs[$i] = truncate_text($paragraph, strlen($paragraph) / $total * ($this->max - $spaces), '...', true);
     }
     return implode(' ', $paragraphs);
 }

 private function show_weblog_form($weblog)
 {
     $this->output->add_javascript("ckeditor/ckeditor.js");
     $this->output->add_javascript("banshee/start_ckeditor.js");
     $this->output->open_tag("edit");
     $weblog["visible"] = show_boolean($weblog["visible"]);
     $this->output->record($weblog, "weblog");
     /* Tags
      */
     $tagged = array();
     if (isset($weblog["tag"])) {
         $tagged = $weblog["tag"];
     } else {
         if (($weblog_tags = $this->model->get_weblog_tags($weblog["id"])) != false) {
             foreach ($weblog_tags as $tag) {
                 array_push($tagged, $tag["id"]);
             }
         }
     }
     $this->output->open_tag("tags");
     if (($tags = $this->model->get_tags()) != false) {
         foreach ($tags as $tag) {
             $this->output->add_tag("tag", $tag["tag"], array("id" => $tag["id"], "selected" => show_boolean(in_array($tag["id"], $tagged))));
         }
     }
     $this->output->close_tag();
     /* Comments
      */
     $this->output->open_tag("comments");
     if (($weblog_comments = $this->model->get_weblog_comments($weblog["id"])) != false) {
         foreach ($weblog_comments as $comment) {
             $comment["content"] = truncate_text($comment["content"], 100);
             $this->output->record($comment, "comment");
         }
     }
     $this->output->close_tag();
     $this->output->close_tag();
 }

/**
 * Функция получения содержимого поля для обработки в шаблоне рубрики
 *
 * @param int $field_id	идентификатор поля, для [tag:fld:12] $field_id = 12
 * @param int $length	необязательный параметр,
 * 						количество возвращаемых символов содержимого поля.
 * 						если данный параметр указать со знаком минус
 * 						содержимое поля будет очищено от HTML-тегов.
 * @return string
 */
function document_get_field_value($field_id, $length = 0)
{
    if (!is_numeric($field_id)) {
        return '';
    }
    $document_fields = get_document_fields(get_current_document_id());
    $field_value = trim($document_fields[$field_id]['field_value']);
    if ($field_value != '') {
        $field_value = strip_tags($field_value, "<br /><strong><em><p><i>");
        if (is_numeric($length) && $length != 0) {
            if ($length < 0) {
                $field_value = strip_tags($field_value);
                $field_value = preg_replace('/  +/', ' ', $field_value);
                $field_value = trim($field_value);
                $length = abs($length);
            }
            $field_value = truncate_text($field_value, $length, '…', true);
        }
    }
    return $field_value;
}

  </thead>
  <tbody>
    <?php 
foreach ($pager->getResults() as $rt_comment) {
    ?>
    <tr>
      <td>
        <a href="<?php 
    echo url_for('rtCommentAdmin/edit?id=' . $rt_comment->getId());
    ?>
"><?php 
    echo $rt_comment->getAuthorName();
    ?>
</a>:<br />
        <?php 
    echo truncate_text(strip_tags($rt_comment->getContent()), 100);
    ?>
      </td>
      <td class="rt-admin-publish-toggle">
        <?php 
    echo rt_nice_boolean($rt_comment->getIsActive());
    ?>
        <div style="display:none;"><?php 
    echo $rt_comment->getId();
    ?>
</div>
      </td>
      <td><?php 
    echo $rt_comment->getCreatedAt();
    ?>
</td>

<?php

echo truncate_text($event->getDescription(), 150);