mysqli 面向對象連接

$host = ‘localhost‘;
$user = ‘root‘;
$password = ‘root‘;

// 創建連接
$conn = @new mysqli($host, $user, $password);

 
// 檢測連接
if ($conn->connect_error) {
    die("連接失敗: " . $conn->connect_error);
}else{
    echo "連接成功";
} 

mysqli 面向過程連接

$host = ‘localhost‘;
$user = ‘root‘;
$password 
 
= ‘root22‘;

//創建連接
$conn = @mysqli_connect($host,$user,$password);
if($conn)
{
    echo ‘連接服務器成功‘;
}else
{
    echo ‘連接服務器失敗‘.mysqli_error();
}

mysqli 面向對象連接和面向過程連接