DB Creation using PHP mysqli

<?php
$con=mysqli_connect("localhost","root","");
if(!$con){
    die("connection failed".mysqli_connect_error());
   
}
$sql="create database lidiya";
if(mysqli_query($con,$sql)){
    echo "db created";
    }
   
    else{
       
        echo"db not created";
    }

mysqli_close($con);
?>