db_pdo::execute PHP Method

    public function execute($str, $bind = array())
    {
        $this->initConnect(true);
        if (!$this->_linkID) {
            return false;
        }
        $this->queryStr = $str;
        if (!empty($bind)) {
            $this->queryStr .= '[ ' . print_r($bind, true) . ' ]';
        }
        $flag = false;
        if ($this->dbType == 'OCI') {
            if (preg_match("/^\\s*(INSERT\\s+INTO)\\s+(\\w+)\\s+/i", $this->queryStr, $match)) {
                $this->table = $match[2];
                $flag = (bool) $this->query("SELECT * FROM user_sequences WHERE sequence_name='" . strtoupper($this->table) . "'");
            }
        }
        //释放前次的查询结果
        if (!empty($this->PDOStatement)) {
            $this->free();
        }
        //N('db_write',1);
        // 记录开始执行时间
        // G('queryStartTime');
        $this->PDOStatement = $this->_linkID->prepare($str);
        if (false === $this->PDOStatement) {
            //E($this->error());
            throw new Exception($this->error());
        }
        // 参数绑定
        $this->bindPdoParam($bind);
        $result = $this->PDOStatement->execute();
        $this->debug();
        if (false === $result) {
            $this->error();
            return false;
        } else {
            $this->numRows = $this->PDOStatement->rowCount();
            if ($flag || preg_match("/^\\s*(INSERT\\s+INTO|REPLACE\\s+INTO)\\s+/i", $str)) {
                $this->lastInsID = $this->getLastInsertId();
            }
            return $this->numRows;
        }
    }