php mysqli数据库面向过程，面向对象实例比较

$value)
        echo "--$value";
    echo "
";
}
//释放资源
mysqli_free_result($res);
//关闭数据库
mysqli_close($mysqli);
?>

connect_error){
    die("连接失败".$mysqli->connect_error);
}
$mysqli->query("utf8");
//2。操作数据库
$sql="select * from user1";
$res=$mysqli->query($sql);
//3。处理结果
while($row=$res->fetch_row())
{
    foreach($row as $key=>$value)
        echo "--$value";
    echo "
";
}
//4。关闭资源
$res->free();
$mysqli->close();
?>