php操作mysql数据库

$con = mysqli_connect(‘localhost‘, ‘root‘, ‘‘, ‘mydb‘);
if (!$con) {
    die(‘数据库连接失败‘ . mysqli_connect_error());
} else {
    echo ‘数据库连接成功‘;
}
$sql=‘SELECT * FROM mysable‘;
//$result=mysqli_query($con,$sql);
$result=$con->query($sql);//面对对象

print_r($result);

while($row=$result->fetch_assoc()){
    print_r($row) ;
}