include

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento sin título</title>
</head>

<body>
<?php
function conectarse(){
$server="localhost";
$user="root";
$password="";
$db="proyecto";
$conectar=new mysqli($server,$user,$password,$db) or die ("Error en la conexion a Mysql");
return $conectar;
}
$conexion=conectarse();
?>
</body>
</html>