Warning: mysqli_connect(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO) in C:\xampp\htdocs\web\it5\lec1\itog.php on line 7

Warning: mysqli_query() expects parameter 1 to be mysqli, bool given in C:\xampp\htdocs\web\it5\lec1\itog.php on line 9

Warning: mysqli_query() expects parameter 1 to be mysqli, bool given in C:\xampp\htdocs\web\it5\lec1\itog.php on line 13

Warning: mysqli_error() expects parameter 1 to be mysqli, bool given in C:\xampp\htdocs\web\it5\lec1\itog.php on line 13