extesion=php_sqlsrv_7_nts_x86.dll
extesion=php_pdo_sqlsrv_7_nts_x86.dll

Fatal error: Uncaught Error: Call to undefined function sqlsrv_connect() in
C:xampphtdocsdiplomadoconection.php:4 Stack trace: #0
C:xampphtdocsdiplomadoindex.php(17): include() #1 {main} thrown in
C:xampphtdocsdiplomadoconection.php on line 4

$serverName= "localhost";
$conectionInfo = array("DataBase"=>"prueba","UID"=>"Root", "UPW"=>"");
$con = sqlsrv_connect($servername,$conectionInfo);
if ($con){
echo "Succesful";
}else{
echo "failed";
}
?>