Failed opening required mysqli_connect.php

[friday]

I 'm trying to connect to mysql database in my php script. I keep getting the following error:

Warning: require(mysqli_connect.php): failed to open stream: No such file or directory in C:\xampp\htdocs\simpleIdb\register-page.php on line 52

Fatal error: require(): Failed opening required 'mysqli_connect.php' (include_path='.;C:\xampp\php\pear') in C:\xampp\htdocs\simpleIdb\register-page.php on line 52

I 'm running XAMPP 5.5.30 on Windows 10.

Line 52 is: require('mysqli_connect.php');

And the following as mysqli_connect.php:

DEFINE ('DB_USER', 'horatio');

DEFINE ('DB_PASSWORD','hmsvictory');

DEFINE('DB_HOST', 'localhost');

DEFINE('DB_NAME', 'simpleIdb');

$dbcon = @mysqli_connect (DB_HOST, DB_USER, DB_PASSWORD, DB_NAME)

OR die ('Could not connect to MySQL:'.mysql_connect_error());

mysql_set_charset($dbcon, 'utf-8');

My include path in php.ini is:

include_path=".;C:\xampp\php\pear"

Can anybody help?

[Altrea]

Can anybody help?

Nobody except you. Is there a file C:\xampp\htdocs\simpleIdb\mysqli_connect.php ?