极湖

const FOUND_ROWS     = 'foundrows'; 
const SQL_FOUND_ROWS = 'SQL_CALC_FOUND_ROWS'; 

protected static $_partsInit = array(
    self::FOUND_ROWS   => false,  
    ... ...
);

/**
 * Makes the query SELECT SQL_CALC_FOUND_ROWS.  
 *
 * @param bool $flag Whether or not add SQL_CALC_FOUND_ROWS to SELECT.
 * @return Zend_Db_Select This Zend_Db_Select object.
 */
public function foundRows($flag = true)
{
    $this->_parts[self::FOUND_ROWS] = (bool) $flag;
    return $this;
}

/**
 * Render FOUND_ROWS clause  
 *
 * @param string   $sql SQL query
 * @return string
 */
protected function _renderFoundRows($sql)
{
    if ($this->_parts[self::FOUND_ROWS]) {
        $sql .= ' ' . self::SQL_FOUND_ROWS;
    }

    return $sql;
}

$select = $db->select()->foundRows()->from(
  ... ...
)->where(
  ... ...
);

$data = $db->fetchAll($select);

$stmt = $db->query("SELECT FOUND_ROWS() as cnt");
list($rec) = $stmt->fetchAll();
$count = $rec['cnt']；

{$var|@debug_print_var}

{$var|@debug_print_var:2:100}

/**
 * 按词分割字符串
 * @param $str 元字符串
 * @param $maxLength 单词最大长度
 * @return array
 */
function splitInWords($str, $maxLength = 16) {
    if(empty($str)) return array();
    if($maxLength <= 0) $maxLength = 1;
    $rawWords = explode(' ', $str);
    $words = array();
    foreach($rawWords as $word) {
        $len = mb_strlen($word);
        if($len > $maxLength) {
            $pos = 0;
            while($len > $maxLength) {
                $words[] = mb_substr($word, $pos, $maxLength);
                $pos += $maxLength;
                $len -= $maxLength;
            }
            $words[] = mb_substr($word, $pos, $maxLength);
        } else {
            $words[] = $word;
        }
    }
    return $words;
}

/**
 * 按行（指定长度）分割字符串
 * @param $str 元字符串
 * @param $length 每行最大字符数
 * @return array
 */
function splitInLines($str, $length = 80) {
    $lines = array();
    foreach(split("\n", $str) as $s) {
        preg_match_all("/./u", $s, $matches);
        $arr = $matches[0];
        for($i = 0; $i < ceil(count($arr)/$length); $i++) {
            $lines[] = join("", array_slice($arr, $i*$length, $length));
        }
    }
    return $lines;
}