cannot connect to sql server

[jj krause]

i get this error code when trying to connect to the sql server threw my php website.


( ! ) Warning: mysqli_connect(): (HY000/2002): No connection could be made because the target machine actively refused it. in C:\wamp\www\Cemetery Databases\search.php on line 27
Call Stack
# Time Memory Function Location
1 0.0010 190608 {main}( ) ..\search.php:0
2 0.0011 191240 mysqli_connect ( ) ..\search.php:27

( ! ) Notice: Use of undefined constant mysqli_error - assumed 'mysqli_error' in C:\wamp\www\Cemetery Databases\search.php on line 27
Call Stack
# Time Memory Function Location
1 0.0010 190608 {main}( ) ..\search.php:0
mysqli_error


connection string

$conn = mysqli_connect("$host","$user","$pass") or die(mysqli_error);
mysqli_select_db("$db_name") or die(mysqli_error());