PHP/MapScript projection string

[Robert Albrecht]

Hi!

I'm trying to do a conversion from Finnish KKJ coordinates to WGS 84 
lat/long coordinates using PHP/MapScript. My problem is that I can't 
figure out how to specify the transformation parameters.

The projection I'm trying to do looks like this:
$projIn = 
ms_newProjectionObj("proj=tmerc,lat_0=0,lon_0=27,k=1,x_0=3500000,y_0=0,towgs84=-75,-230,-89,ellps=intl");
$projOut = ms_newProjectionObj("proj=latlong,datum=WGS84");

However the "towgs84=-75,-230,-89" part only works for the dx part (-75) 
as MapScript apparently thinks -230 and -89 are new parameters. I've 
tried different ways to specify the transformation parameters, without 
any luck. Could someone help me out here?

Thanks in advance,
Robert Albrecht