PHP mysqli_sqlstate() Function

<?php// ja  va 2 s  . c o m
    $con=mysqli_connect("localhost","my_user","my_password","my_db");
    if (mysqli_connect_errno($con)){
       echo "Failed to connect to MySQL: " . mysqli_connect_error();
    }
    
    $sql="CREATE TABLE Persons (Firstname VARCHAR(30),Lastname VARCHAR(30),Age INT)";
    if (!mysqli_query($con,$sql)){
      echo "SQLSTATE error: ". mysqli_sqlstate($con);
    }
    
    mysqli_close($con);
?>