<?PHP
    $servername = "TSHA105S4074SQLEXPRESS";    //serverNameinstanceName
//  $username = "";    // exclude UID, using windows authentication
//  $password = "";    // exclude PWD, using windows authentication
    $connectionInfo = array("Database"=>"oes_project_db.mdf");
    $conn = sqlsrv_connect($serverName, $connectionInfo);
    if( $conn ) {
         echo "Connection established.<br />";
    }else{
         echo "Connection could not be established.<br />";
         die( print_r( sqlsrv_errors(), true));
    }
?>