PHP mb_strimwidth函数代码示例

 /**
  * query 對 db 下 SQL query
  * 
  * @param mixed $sql 
  * @access protected
  * @return Mysqli result
  */
 public function query($sql, $table = null)
 {
     $short_sql = mb_strimwidth($sql, 0, 512, "...len=" . strlen($sql));
     if (Pix_Table::$_log_groups[Pix_Table::LOG_QUERY]) {
         Pix_Table::debug(sprintf("[%s]\t%40s", $this->_link->host_info, $short_sql));
     }
     // TODO 需要 log SQL Query 功能
     if ($comment = Pix_Table::getQueryComment()) {
         $sql = trim($sql, '; ') . ' #' . $comment;
     }
     $starttime = microtime(true);
     $res = $this->_link->query($sql);
     if ($t = Pix_Table::getLongQueryTime() and ($delta = microtime(true) - $starttime) > $t) {
         Pix_Table::debug(sprintf("[%s]\t%s\t%40s", $this->_link->host_info, $delta, $sql));
     }
     if ($res === false) {
         if ($errno = $this->_link->errno) {
             switch ($errno) {
                 case 1062:
                     throw new Pix_Table_DuplicateException($this->_link->error, $errno);
                 case 1406:
                     throw new Pix_Table_DataTooLongException($this->_link->error, $errno);
                 default:
                     throw new Exception("SQL Error: {$this->_link->error} SQL: {$sql}");
             }
         }
     }
     return $res;
 }

 function widget($args, $instance)
 {
     extract($args);
     $user_id = $instance['user_id'];
     if (empty($user_id)) {
         if (is_author()) {
             $user_id = get_queried_object_id();
         } else {
             return;
         }
     }
     $title = apply_filters('widget_title', $title, $instance, $this->id_base);
     $title = sprintf($instance['title'], '<span class="display-name">' . get_the_author_meta('display_name', $user_id) . '</span>');
     $bio = get_the_author_meta('description', $user_id);
     if ($instance['strip_tags']) {
         $bio = strip_tags($bio);
     }
     if (function_exists('mb_strimwidth') && ($bio_length = $instance['bio_length'])) {
         $bio = mb_strimwidth($bio, 0, $bio_length);
     }
     echo $before_widget;
     if (!empty($title)) {
         echo $before_title . $title . $after_title;
     }
     echo '<div class="bio">' . wpautop($bio) . '</div>';
     echo $after_widget;
 }

 public function index()
 {
     // 首页的标题，关键词，描述
     $siteInfo = M('enewspublic')->field('sitename, sitekey, siteintro')->find();
     $this->assign('siteInfo', $siteInfo);
     // 图片资讯 推1
     $picArticles = $this->getArticles('', 5, 1, 1);
     $this->assign('picArticles', $picArticles);
     // 热点推荐 推2
     $recommArticles = $this->getArticles('', 5, 0, 2);
     $recommContent = $this->formatArticleContent($recommArticles[0]['newstext']);
     $recommArticles[0]['newstext'] = mb_strimwidth(strip_tags($recommContent), 0, 150, '...', 'utf-8');
     $this->assign('recommArticles', $recommArticles);
     // 普通资讯 推3
     $normalArticles = $this->getArticles('', 1, 0, 3);
     $normalContent = $this->formatArticleContent($normalArticles['newstext']);
     $normalArticles['newstext'] = mb_strimwidth(strip_tags($normalContent), 0, 400, '...', 'utf-8');
     $normalArticles['wordcount'] = mb_strlen(strip_tags($normalContent));
     $this->assign('normalArticles', $normalArticles);
     // 滚动图片 推4
     $rollPics = $this->getArticles('', 16, 1, 4);
     $this->assign('rollPics', $rollPics);
     // 动作分类 科幻魔幻 情景喜剧 ...
     $classArticles = $this->classArticles();
     $this->assign('classArticles', $classArticles);
     // 文章归档
     $archives = $this->archives();
     $this->assign('archives', $archives);
     // 友情链接
     $friendlyLink = $this->friendlyLink();
     $this->assign('friendlyLink', $friendlyLink);
     $this->display();
 }

 public function query($sql)
 {
     $short_sql = mb_strimwidth($sql, 0, 512, "...len=" . strlen($sql));
     if (Pix_Table::$_log_groups[Pix_Table::LOG_QUERY]) {
         Pix_Table::debug(sprintf("[%s]\t%40s", $this->_path . $this->_name, $short_sql));
     }
     $starttime = microtime(true);
     $statement = $this->_pdo->prepare($sql);
     if (!$statement) {
         if ($errno = $this->_pdo->errorCode()) {
             $errorInfo = $this->_pdo->errorInfo();
         }
         if ($errorInfo[2] == 'PRIMARY KEY must be unique' or preg_match('/duplicate key value violates unique constraint/', $errorInfo[2])) {
             throw new Pix_Table_DuplicateException($errorInfo[2]);
         }
         throw new Exception("SQL Error: ({$errorInfo[0]}:{$errorInfo[1]}) {$errorInfo[2]} (SQL: {$short_sql})");
     }
     $res = $statement->execute();
     if ($t = Pix_Table::getLongQueryTime() and ($delta = microtime(true) - $starttime) > $t) {
         Pix_Table::debug(sprintf("[%s]\t%s\t%40s", $this->_pdo->getAttribute(PDO::ATTR_SERVER_INFO), $delta, $short_sql));
     }
     if ($res === false) {
         if ($errno = $statement->errorCode()) {
             $errorInfo = $statement->errorInfo();
         }
         if ($errorInfo[2] == 'PRIMARY KEY must be unique' or preg_match('/duplicate key value violates unique constraint/', $errorInfo[2])) {
             throw new Pix_Table_DuplicateException($errorInfo[2]);
         }
         throw new Exception("SQL Error: ({$errorInfo[0]}:{$errorInfo[1]}) {$errorInfo[2]} (SQL: {$short_sql})");
     }
     return new Pix_Table_Db_Adapter_PDO_Result($statement);
 }

function substr_content($content)
{
    if (!is_singular()) {
        $content = mb_strimwidth(strip_tags($content), 0, 310);
    }
    return $content;
}

 /**
  * Execute the command.
  *
  * @param  \Symfony\Component\Console\Input\InputInterface  $input
  * @param  \Symfony\Component\Console\Output\OutputInterface  $output
  * @return void
  */
 public function execute(InputInterface $input, OutputInterface $output)
 {
     $client = new Client();
     $modname = $input->getArgument('modname');
     $modversion = $input->getArgument('modversion');
     $config = solder_config();
     $response = $client->get($config->api);
     $server = $response->json();
     $response = $client->get($config->api . '/mod/' . $modname . '/' . $modversion);
     $json = $response->json();
     if (isset($json['error'])) {
         throw new \Exception($json['error']);
     }
     $rows = array();
     foreach ($json as $key => $value) {
         if ($key == 'versions') {
             $rows[] = array("<info>{$key}</info>", implode($value, "\n"));
         } else {
             $rows[] = array("<info>{$key}</info>", mb_strimwidth($value, 0, 80, "..."));
         }
     }
     $output->writeln('<comment>Server:</comment>');
     $output->writeln(" <info>{$server['api']}</info> version {$server['version']}");
     $output->writeln(" {$api}");
     $output->writeln('');
     $output->writeln("<comment>Mod:</comment>");
     $table = new Table($output);
     $table->setRows($rows)->setStyle('compact')->render();
 }

/**
 *  smarty modifier:文字列のwordwrap処理
 *
 *  sample:
 *  <code>
 *  {"あいうaえaおaかきaaaくけこ"|wordwrap_i18n:8}
 *  </code>
 *  <code>
 *  あいうa
 *  えaおaか
 *  きaaaく
 *  けこ
 *  </code>
 *
 *  @param  string  $string wordwrapする文字列
 *  @param  string  $break  改行文字
 *  @param  int     $width  wordwrap幅(半角$width文字でwordwrapする)
 *  @param  int     $indent インデント幅(半角$indent文字)
 *                          数値を指定するが、はじめの行はインデントされない
 *  @return string  wordwrap処理された文字列
 */
function smarty_modifier_wordwrap_i18n($string, $width, $break = "\n", $indent = 0)
{
    $ctl = Ethna_Controller::getInstance();
    $client_enc = $ctl->getClientEncoding();
    //    いわゆる半角を単位にしてwrapする位置を測るため、いったん
    //    EUC_JP に変換する
    $euc_string = mb_convert_encoding($string, 'EUC_JP', $client_enc);
    $r = "";
    $i = "{$break}" . str_repeat(" ", $indent);
    $tmp = $euc_string;
    do {
        $n = strpos($tmp, $break);
        if ($n !== false && $n < $width) {
            $s = substr($tmp, 0, $n);
            $r .= $s . $i;
            $tmp = substr($tmp, strlen($s) + strlen($break));
            continue;
        }
        $s = mb_strimwidth($tmp, 0, $width, "", 'EUC_JP');
        $tmp = substr($tmp, strlen($s));
        $r .= $s . (strlen($tmp) > 0 ? $i : '');
    } while (strlen($tmp) > 0);
    //    最後に、クライアントエンコーディングに変換
    $r = mb_convert_encoding($r, $client_enc, 'EUC_JP');
    return $r;
}

 /**
  * Limit the number of characters in a string.
  *
  * @param string $value
  * @param int    $limit
  * @param string $end
  *
  * @return string
  */
 public static function limit(string $value, int $limit = 100, string $end = '...') : string
 {
     if (mb_strwidth($value, 'UTF-8') <= $limit) {
         return $value;
     }
     return rtrim(mb_strimwidth($value, 0, $limit, '', 'UTF-8')) . $end;
 }

 function endElement($parser, $tagName)
 {
     if ($tagName == "ITEM") {
         //if ($this->status) print "[$this->status] ";
         $title = trim($this->title);
         if (!empty($this->title_width) && function_exists('mb_strimwidth')) {
             $title = mb_strimwidth($title, 0, $this->title_width, '...', $this->charset);
         }
         $title = sprintf("<a href='%s' title='%s' target='_content'>%s</a>", trim($this->link), _html_escape($this->title), _html_escape($title));
         #printf("<p>%s</p>",
         #  _html_escape(trim($this->description)));
         if ($this->date) {
             $date = trim($this->date);
             $date[10] = " ";
             # 2003-07-11T12:08:33+09:00
             # http://www.w3.org/TR/NOTE-datetime
             $zone = str_replace(":", "", substr($date, 19));
             $time = strtotime(substr($date, 0, 19) . $zone);
             $date = date($this->date_fmt, $time);
         }
         echo '<li><span data-timestamp="' . $time . '" class="date">', $date, '</span> ', $title, '</li>', "\n";
         $this->title = "";
         $this->description = "";
         $this->link = "";
         $this->date = "";
         $this->status = "";
         $this->insideitem = false;
     }
 }

 public function mini_content($length = 100)
 {
     if (!isset($this->content)) {
         return '';
     }
     return $length ? mb_strimwidth(remove_ckedit_tag($this->content), 0, $length, '…', 'UTF-8') : remove_ckedit_tag($this->content);
 }

/**
 * 字符串截取，支持中文和其他编码
 * @static
 * @access public
 * @param string $str 需要转换的字符串
 * @param string $start 开始位置
 * @param string $length 截取长度
 * @param string $charset 编码格式
 * @param string $suffix 截断显示字符
 * @return string
 */
function msubstr($str, $start = 0, $length, $charset = "utf-8", $suffix = false)
{
    if (function_exists("mb_strimwidth")) {
        $slice = mb_strimwidth($str, $start, $length, '', $charset);
        // mb_strimwidth 截取字符串 中文算2个字节，英文算1个
    } elseif (function_exists('mb_substr')) {
        $slice = mb_substr($str, $start, $length, $charset);
    } elseif (function_exists("iconv_substr")) {
        $slice = iconv_substr($str, $start, $length, $charset);
    } else {
        $re['utf-8'] = "/[-]|[�-�][�-�]|[�-�][�-�]{2}|[�-�][�-�]{3}/";
        $re['gb2312'] = "/[-]|[�-�][�-�]/";
        $re['gbk'] = "/[-]|[�-�][@-�]/";
        $re['big5'] = "/[-]|[�-�]([@-~]|�-�])/";
        preg_match_all($re[$charset], $str, $match);
        $slice = join("", array_slice($match[0], $start, $length));
    }
    if ($suffix) {
        return mb_strwidth($slice, $charset) > $length ? $slice : $slice . '...';
        // mb_strwidth 计算字符串长度 中文算2个字节，英文算1个
    } else {
        return $slice;
    }
    //    return $suffix ? $slice.'...' : $slice;
}

 private function trimTitles($data)
 {
     foreach ($data as &$entry) {
         $entry['label'] = utf8_encode(mb_strimwidth(@$entry['label'], 0, 25, "..."));
     }
     return $data;
 }

 public function mini_href($length = 80)
 {
     if (!isset($this->href)) {
         return '';
     }
     return $length ? mb_strimwidth(remove_ckedit_tag($this->href), 0, $length, '…', 'UTF-8') : remove_ckedit_tag($this->href);
 }

 /**
  * getDatatable
  * Gets the datatable for the index page
  *
  * @return mixed
  * @author  Vincent Sposato <vincent.sposato@gmail.com>
  * @version v1.0
  */
 public function getDatatable()
 {
     $assetMaintenances = AssetMaintenance::orderBy('created_at', 'DESC')->get();
     $actions = new \Chumper\Datatable\Columns\FunctionColumn('actions', function ($assetMaintenances) {
         return '<a href="' . route('update/asset_maintenance', $assetMaintenances->id) . '" class="btn btn-warning btn-sm" style="margin-right:5px;"><i class="fa fa-pencil icon-white"></i></a><a data-html="false" class="btn delete-asset btn-danger btn-sm" data-toggle="modal" href="' . route('delete/asset_maintenance', $assetMaintenances->id) . '" data-content="' . Lang::get('admin/asset_maintenances/message.delete.confirm') . '" data-title="' . Lang::get('general.delete') . ' ' . htmlspecialchars($assetMaintenances->title) . '?" onClick="return false;"><i class="fa fa-trash icon-white"></i></a>';
     });
     return Datatable::collection($assetMaintenances)->addColumn('asset', function ($assetMaintenances) {
         return link_to('/hardware/' . $assetMaintenances->asset_id . '/view', mb_strimwidth($assetMaintenances->asset->name, 0, 50, "..."));
     })->addColumn('supplier', function ($assetMaintenances) {
         return link_to('/admin/settings/suppliers/' . $assetMaintenances->supplier_id . '/view', mb_strimwidth($assetMaintenances->supplier->name, 0, 50, "..."));
     })->addColumn('asset_maintenance_type', function ($assetMaintenances) {
         return $assetMaintenances->asset_maintenance_type;
     })->addColumn('title', function ($assetMaintenances) {
         return link_to('/admin/asset_maintenances/' . $assetMaintenances->id . '/view', mb_strimwidth($assetMaintenances->title, 0, 50, "..."));
     })->addColumn('start_date', function ($assetMaintenances) {
         return $assetMaintenances->start_date;
     })->addColumn('completion_date', function ($assetMaintenances) {
         return $assetMaintenances->completion_date;
     })->addColumn('asset_maintenance_time', function ($assetMaintenances) {
         if (is_null($assetMaintenances->asset_maintenance_time)) {
             $assetMaintenances->asset_maintenance_time = Carbon::now()->diffInDays(Carbon::parse($assetMaintenances->start_date));
         }
         return intval($assetMaintenances->asset_maintenance_time);
     })->addColumn('cost', function ($assetMaintenances) {
         return sprintf(Lang::get('general.currency') . '%01.2f', $assetMaintenances->cost);
     })->addColumn($actions)->searchColumns('asset', 'supplier', 'asset_maintenance_type', 'title', 'start_date', 'completion_date', 'asset_maintenance_time', 'cost', 'actions')->orderColumns('asset', 'supplier', 'asset_maintenance_type', 'title', 'start_date', 'completion_date', 'asset_maintenance_time', 'cost', 'actions')->make();
 }

 function str_limit($value, $limit = 100, $end = '...')
 {
     if (mb_strwidth($value, 'UTF-8') <= $limit) {
         return $value;
     }
     return rtrim(mb_strimwidth($value, 0, $limit, '', 'UTF-8')) . $end;
 }