I try to running PDO with an ODBC connection.
First at all im running on a 64 bits windows with a 32 bits WAMP installation and finally a 32 bits ODBC driver (does not exist in 64 bits).
Thanks to :
C:\Windows\SysWOW64\odbcad32.exe
I have created a DSN test and I tried odbc_connection :
odbc_connect("test", "root" , "root");
Connection works and i can perform query.
Then I tried pdo_odbc :
try {
$dbh = new PDO("odbc:test", "root", "root");
} catch (PDOException $e) {
echo 'Connection failed: ' . $e->getMessage();
}
but I get an error …
Connection failed: could not find driver
I can’t understand why pdo connection failed :'(
PS: pdo_odbc is enabled on phpinfo(); see below

Finaly it’s just more stupid… The ODBC driver (nuoDB win ODBC driver) I used was not designed for working with PDO.