$serverName = "xxx";
$connectionOptions = array("Database"=>"xxx","UID"=>"xxx","PWD"=>"xxx","CharacterSet"=>"UTF-8" );
 
$conn = sqlsrv_connect( $serverName, $connectionOptions);
 
if( $conn === false) die(sqlsrv_errors());
$sql = "select top 10 * from clients";
$res = sqlsrv_query( $conn, $sql);
while( $row = sqlsrv_fetch_array( $res, SQLSRV_FETCH_ASSOC)){
    print_r($row);
}

$serverName = "xxx";
$connectionOptions = array("Database"=>"xxx","UID"=>"xxx","PWD"=>"xxx","CharacterSet"=>"UTF-8" );
 
$conn = sqlsrv_connect( $serverName, $connectionOptions);
 
if( $conn === false) die(sqlsrv_errors());
$sql = "use MADB;select top 10 * from clients";
$res = sqlsrv_query( $conn, $sql);
while( $row = sqlsrv_fetch_array( $res, SQLSRV_FETCH_ASSOC)){
    print_r($row);
}