PHP utf8_trim函数代码示例

 function _init_search_query_object()
 {
     $request = request::instance();
     if ($search_query = utf8_trim($request->get_attribute('search_query'))) {
         $this->query_object->add(search_text_normalizer::process($search_query));
     }
 }

 public function getMessageText($inputName, XenForo_Input $input, $htmlCharacterLimit = -1)
 {
     $messageText = parent::getMessageText($inputName, $input, $htmlCharacterLimit);
     if (utf8_trim($messageText) === 'lipsum') {
         $lipsum = @file_get_contents('http://www.lipsum.com/feed/json');
         if (!empty($lipsum)) {
             $lipsum = @json_decode($lipsum, true);
             if (!empty($lipsum['feed']['lipsum'])) {
                 $messageText = sprintf("%s\n\nBy [URL=%s]%s[/URL]", $lipsum['feed']['lipsum'], $lipsum['feed']['creditlink'], $lipsum['feed']['creditname']);
             }
         }
     }
     return $messageText;
 }

 function get_search_query_object()
 {
     if ($this->query_object) {
         return $this->query_object;
     }
     $request = request::instance();
     if (!($search_query = utf8_trim($request->get_attribute('search_query')))) {
         return null;
     }
     $this->query_object = new search_query();
     $search_query = search_text_normalizer::process($search_query);
     $words = explode(' ', $search_query);
     foreach ($words as $word) {
         $this->query_object->add($word);
     }
     return $this->query_object;
 }

/**
* Parses a var file into a data structure. Used in conjunction with an
* Importtag
*/
function parse_var_file($filename)
{
    $result = array();
    $raw_lines = file($filename);
    while (list(, $line) = each($raw_lines)) {
        $equal_pos = utf8_strpos($line, '=');
        if ($equal_pos === false) {
            $result[utf8_trim($line)] = null;
        } else {
            $key = utf8_trim(utf8_substr($line, 0, $equal_pos));
            if (utf8_strlen($key) > 0) {
                $result[$key] = utf8_trim(utf8_substr($line, $equal_pos + 1));
            }
        }
    }
    return $result;
}

/**
 * 双字节字符截取
 *
 * @param string $content
 * @param int $length
 * @return string
 */
function substrs($content, $length)
{
    if (!defined('CFG_CHARSET')) {
        define('CFG_CHARSET', 'utf-8');
    }
    if ($length && strlen($content) > $length) {
        if (CFG_CHARSET != 'utf-8') {
            $retstr = '';
            for ($i = 0; $i < $length - 2; $i++) {
                $retstr .= ord($content[$i]) > 127 ? $content[$i] . $content[++$i] : $content[$i];
            }
            return $retstr . ' ..';
        } else {
            return utf8_trim(substr($content, 0, $length * 3));
        }
    }
    return $content;
}

/**
 * Returns filename component of path
 *
 * @author Lars Knickrehm <mail@lars-sh.de>
 * @category Library
 * @copyright Copyright © 2009 Lars Knickrehm
 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License
 * @link http://php.net/manual/function.basename.php
 * @package UTF-8
 * @param string $path A path. Both slash (/) and backslash (\) are used as directory separator character.
 * @param string $suffix If the filename ends in suffix  this will also be cut off.
 * @return string Base name of the given path
 * @since Version 0.5.0
 * @version 0.5.0
 */
function utf8_basename($path, $suffix = '')
{
    // Change backslash (\) to slash (/)
    $path = utf8_trim(strtr($path, array('\\' => '/')), '/');
    // Get basename
    $i = utf8_strrpos($path, '/');
    if ($i !== false) {
        $path = utf8_substr($path, $i + 1);
    }
    // Handle suffix
    if ($suffix !== '') {
        $position = utf8_strrpos($path, $suffix);
        if ($position !== false) {
            $path = utf8_substr($path, 0, $position);
        }
    }
    return $path;
}

 function process($content)
 {
     $content = utf8_strtolower($content);
     $content = utf8_str_replace("\n", ' ', $content);
     $content = utf8_str_replace("\t", ' ', $content);
     $content = utf8_str_replace("\r", ' ', $content);
     $search = array("'<script[^>]*?>.*?</script>'si", "'<[\\/\\!]*?[^<>]*?>'si", "'([\r\n])[\\s]+'");
     $replace = array('', ' ', ' ');
     $content = preg_replace($search, $replace, $content);
     $content = preg_replace("#(\\.){2,}#", ' ', $content);
     $content = preg_replace("#^\\.#", ' ', $content);
     $content = preg_replace("#\\s\\.#", ' ', $content);
     $content = preg_replace("#\\.\\s#", ' ', $content);
     $content = preg_replace("#\\.\$#", ' ', $content);
     //non utf8 chars(�,�)
     $content = preg_replace("#(\\s|^)(\"|'|`|�|�)(\\w)#", '\\1\\3', $content);
     $content = preg_replace("#(\\w)(\"|'|`|�|�)(\\s|\$)#u", '\\1\\3', $content);
     $content = utf8_str_replace("&nbsp;", ' ', $content);
     $content = utf8_str_replace(":", ' ', $content);
     $content = utf8_str_replace(",", ' ', $content);
     $content = utf8_str_replace(";", ' ', $content);
     $content = utf8_str_replace("(", ' ', $content);
     $content = utf8_str_replace(")", ' ', $content);
     $content = utf8_str_replace("-", ' ', $content);
     $content = utf8_str_replace("+", ' ', $content);
     $content = utf8_str_replace("/", ' ', $content);
     $content = utf8_str_replace("!", ' ', $content);
     $content = utf8_str_replace("?", ' ', $content);
     $content = utf8_str_replace("[", ' ', $content);
     $content = utf8_str_replace("]", ' ', $content);
     $content = utf8_str_replace("\$", ' ', $content);
     $content = utf8_str_replace("\\", ' ', $content);
     $content = utf8_str_replace("<", ' ', $content);
     $content = utf8_str_replace(">", ' ', $content);
     $content = utf8_str_replace("*", ' ', $content);
     $content = utf8_trim(preg_replace("~\\s+~u", ' ', $content));
     return $content;
 }

function pun_trim($str, $charlist = false)
{
    return is_string($str) ? utf8_trim($str, $charlist) : '';
}

 /**
  * Assign user to organization AND Try to create new organization if it doesn't exist yet
  *
  * @param object User
  * @param string Organization name
  * @param string Organization role
  */
 function userorg_update_by_name(&$User, $org_name, $org_role = '')
 {
     $org_name = utf8_trim($org_name);
     if (empty($org_name)) {
         // Don't update an user organization with empty name:
         return;
     }
     if (is_null($this->userorgs)) {
         // Initialize array to keep what organizations should be assigned to the user:
         $this->userorgs = array();
     }
     // Get organization ID by name AND save it in array to update after user insertion:
     $org_ID = $this->userorg_get_by_name($org_name);
     $this->userorgs[$org_ID] = $org_role;
 }

if ($is_logged_in) {
    if ($User->ID == $current_User->ID && !$User->has_avatar()) {
        // If user hasn't an avatar, add a link to go for uploading of avatar
        $avatar_imgtag = '<a href="' . get_user_avatar_url() . '">' . $avatar_imgtag . '</a>';
    }
}
echo $params['profile_avatar_before'] . $avatar_imgtag . $params['profile_avatar_after'];
// First Last Names:
$first_last_name = '';
if ($Settings->get('firstname_editing') != 'hidden' && $User->get('firstname') != '') {
    $first_last_name .= $User->get('firstname');
}
if ($Settings->get('lastname_editing') != 'hidden' && $User->get('lastname') != '') {
    $first_last_name .= ' ' . $User->get('lastname');
}
$first_last_name = utf8_trim($first_last_name);
if (!empty($first_last_name)) {
    // Display first last name of it is not empty
    echo '<h1>' . $first_last_name . '</h1>';
}
// Nickname:
if ($Settings->get('nickname_editing') != 'hidden' && $User->get('nickname') != '') {
    echo '<h2>' . $User->get('nickname') . '</h2>';
}
// Login:
echo '<h2 class="text-muted">' . $User->get('login') . '</h2>';
echo '<hr class="profile_separator" />' . "\n";
// Gender & age group:
$gender_age_group = $User->get_gender();
if (!empty($User->age_min) || !empty($User->age_max)) {
    if (!empty($gender_age_group)) {

 /**
  * UTF-8 aware replacement for trim()
  *
  * Strip whitespace (or other characters) from the beginning and end of a string. You only need to use this if you are supplying the charlist
  * optional arg and it contains UTF-8 characters. Otherwise trim will work normally on a UTF-8 string
  *
  * @param   string  $str       The string to be trimmed
  * @param   string  $charlist  The optional charlist of additional characters to trim
  *
  * @return  string  The trimmed string
  *
  * @see     http://www.php.net/trim
  * @since   1.3.0
  */
 public static function trim($str, $charlist = false)
 {
     if (empty($charlist) && $charlist !== false) {
         return $str;
     }
     if ($charlist === false) {
         return utf8_trim($str);
     }
     return utf8_trim($str, $charlist);
 }

 public static function getNormalizedTagText($tagText)
 {
     $tagText = utf8_trim($tagText);
     $tagText = utf8_strtolower($tagText);
     return $tagText;
 }

function processEditProjectForm()
{
    global $manager;
    $id = $_POST['id'];
    $title = $_POST['title'];
    $slug = empty($_POST['slug']) ? $manager->clerk->simple_name($title) : $_POST['slug'];
    $oldSlug = $_POST['oldslug'];
    $now = getdate();
    $date = mktime($now["hours"], $now["minutes"], $now["seconds"], $_POST["date_month"], $_POST["date_day"], $_POST["date_year"]);
    $tags = $_POST['tags'];
    $publish = $_POST['publish'];
    $paths = $manager->getSetting("projects_path");
    $paths = array('path' => $paths['data1'], 'url' => $paths['data2']);
    if ($_POST['submit'] == "save") {
        if ($manager->clerk->query_countRows("projects", "WHERE slug= '{$slug}' AND id != '{$id}'") >= 1) {
            $manager->message(0, false, 'A project with the simple name/slug <em>"' . $slug . '"</em> already exists! Please choose a new one.');
            return false;
        }
        if ($manager->clerk->query_edit("projects", "title= '{$title}', slug= '{$slug}', date= '{$date}', publish= '{$publish}'", "WHERE id= '{$id}'")) {
            $manager->message(1, false, "Project <em>{$title}</em> saved!");
            // Handle tags...
            if (!empty($tags)) {
                $tags = explode(",", $tags);
                $total = count($tags);
                $manager->clerk->query_delete("projects_to_tags", "WHERE projectid= '{$id}'");
                $count = 0;
                foreach ($tags as $c) {
                    $count++;
                    $query .= "('" . utf8_trim($c) . "', '{$id}')";
                    $query .= $count == $total ? "" : ", ";
                }
                $manager->clerk->query_insert("projects_to_tags", "tag, projectid", $query, true);
            } else {
                $manager->clerk->query_delete("projects_to_tags", "WHERE projectid= '{$id}'");
            }
            // Handle renaming
            if ($slug != $oldSlug) {
                rename($paths['path'] . $oldSlug, $paths['path'] . $slug);
            }
        } else {
            $manager->message(0, true, "This project could not be saved!");
        }
    }
}

 /**
  * @param string $string
  * @param int $maxLength
  * @param array $options
  *
  * @return string
  */
 public static function snippet($string, $maxLength = 0, array $options = array())
 {
     $options = array_merge(array('previewBreakBbCode' => 'prbreak', 'ellipsis' => '…'), $options);
     if (!empty($options['previewBreakBbCode']) && preg_match(sprintf('#\\[%1$s\\](?<preview>.*)\\[/%1$s\\]#', preg_quote($options['previewBreakBbCode'], '#')), $string, $matches, PREG_OFFSET_CAPTURE)) {
         // preview break bbcode found
         if (!empty($matches['preview'][0])) {
             // preview text specified, use it directly
             $string = $matches['preview'][0];
             $maxLength = 0;
         } else {
             // use content before the found bbcode to continue
             $string = substr($string, 0, $matches[0][1]);
             $maxLength = 0;
         }
     }
     $snippet = XenForo_Template_Helper_Core::callHelper('snippet', array($string, $maxLength, $options));
     // TODO: find better way to avoid having to call this
     $snippet = htmlspecialchars_decode($snippet);
     if ($maxLength == 0 || $maxLength > utf8_strlen($string)) {
         return $snippet;
     }
     $offset = 0;
     $stack = array();
     while (true) {
         $startPos = utf8_strpos($snippet, '<', $offset);
         if ($startPos !== false) {
             $endPos = utf8_strpos($snippet, '>', $startPos);
             if ($endPos === false) {
                 // we found a partial open tag, best to delete the whole thing
                 $snippet = utf8_substr($snippet, 0, $startPos) . $options['ellipsis'];
                 break;
             }
             $foundLength = $endPos - $startPos - 1;
             $found = utf8_substr($snippet, $startPos + 1, $foundLength);
             $offset = $endPos;
             if (preg_match('#^(?<closing>/?)(?<tag>\\w+)#', $found, $matches)) {
                 $tag = $matches['tag'];
                 $isClosing = !empty($matches['closing']);
                 $isSelfClosing = !$isClosing && utf8_substr($found, $foundLength - 1, 1) === '/';
                 if ($isClosing) {
                     $lastInStack = null;
                     if (count($stack) > 0) {
                         $lastInStack = array_pop($stack);
                     }
                     if ($lastInStack !== $tag) {
                         // found tag does not match the one in stack
                         $replacement = '';
                         // first we have to close the one in stack
                         if ($lastInStack !== null) {
                             $replacement .= sprintf('</%s>', $tag);
                         }
                         // then we have to self close the found tag
                         $replacement .= utf8_substr($snippet, $startPos, $endPos - $startPos - 1);
                         $replacement .= '/>';
                         // do the replacement
                         $snippet = utf8_substr_replace($snippet, $replacement, $startPos, $endPos - $startPos);
                         $offset = $startPos + utf8_strlen($snippet);
                     }
                 } elseif ($isSelfClosing) {
                     // do nothing
                 } else {
                     // is opening tag
                     $stack[] = $tag;
                 }
             }
         } else {
             break;
         }
     }
     while (!empty($stack)) {
         $snippet .= sprintf('</%s>', array_pop($stack));
     }
     $snippet = utf8_trim($snippet);
     if ($snippet === '') {
         // this is bad...
         // happens if the $maxLength is too low and for some reason the very first tag cannot finish
         $snippet = utf8_trim(strip_tags($string));
         if ($snippet !== '') {
             $snippet = XenForo_Template_Helper_Core::callHelper('snippet', array($snippet, $maxLength, $options));
         } else {
             // this is super bad...
             // the string is one big html tag and it is too damn long
             $snippet = $options['ellipsis'];
         }
     }
     return $snippet;
 }

/**
 * Return a search score for the given text and search keywords
 *
 * @param string Text to score
 * @param string The search keywords to score by
 * @param integer Score multiplier 
 * @return integer Result score
 */
function score_tags($tag_name, $search_term, $score_weight = 4)
{
    $score = 0.0;
    $scores_map = array();
    if ($tag_name == utf8_trim($search_term)) {
        // We use only EXACT match for post tags:
        $score = $score_weight;
        $scores_map['tags'] = $score;
    }
    return array('score' => $score, 'score_weight' => $score_weight, 'map' => $scores_map);
}