PHP odbc_connect - failed to connect to firebird

I'm trying to connect to database by ODBC Setup Firebird ODBC setup

<?php
$user = "SYSDBA"; 
$password = "masterkey";
$dsn= "DRIVER={Devart ODBC Driver for Firebird};Database=bazatestowa;Server=localhost;Port=3050"; 
$con=odbc_connect($dsn,$user,$password);
if($con){
  echo "Connected";
  }else{
  echo "Failed";  }
  ?>

This is error I get:

Warning: odbc_connect(): SQL error: [Microsoft][driver manager ODBC] Could not find data source name and no default driver specified , SQL state IM002 in SQLConnect in C:\Integracja-skrypty\index.php on line 5

I have no idea what to input in $dsn to make it work.

I translated the error message.

<?php
    $user = "SYSDBA"; 
    $password = "masterkey";
    $dsn= "DRIVER={bazatestowa}"; 
    $con=odbc_connect($dsn,$user,$password);
    if($con){
      echo "Connected";
  }else{
      echo "Failed";
  }
      ?>

With this code the error is the same.

<?php
$user = "SYSDBA"; 
$password = "masterkey";
$dsn= "bazatestowa"; 
$con=odbc_connect($dsn,$user,$password);
if($con){
  echo "Connected";  }else{   echo "Failed";  }

  ?>

With this code I have this error

PHP Warning: odbc_connect (): SQL error: [Microsoft] [ODBC driver manager] Given DSN contains architecture mismatch between driver and application, SQL state IM014 in SQLConnect in C: \ Integration-scripts \ index.php on line 5