php用面向對象從mysql取數據

<?php

//建立數據庫的鏈接
@$_mysqli = new mysqli('localhost','root','123456','dbname');
if(mysqli_connect_errno()){
    echo 'mysqli Connect is error'.mysqli_connect_error();
    exit();
}
//設置客戶端字符編碼
$_mysqli->set_charset('utf8');
//數據庫查詢語句
$sqli= "SELECT * FROM tp_blog";

//運行查詢語句
$result=$_mysqli->query($sqli);

//循環出數據庫數據 
 while(!!$rows = $result->fetch_assoc()){
     print_r($rows).'<br />';  //遍歷出所有數據
         $rows['title'].'<br />'; //遍歷某個字段的數據
 }
 


$result ->free();

$_mysqli->close();

?>