How to call COM function from PHP with OLE_COLOR as an argument?

I am trying to call a COM object from PHP using the COM interop extension. One function requires an OLE_COLOR as an argument? Is there any way to pass this kind of value from PHP?

I have tried passing a simple integer value with no success.

$this->oBuilder->Font->Color = 255;

From stackoverflow Vincent

• When I've called COM functions from PHP, I just passed them in the call. So my old code has:

  $myComObject = new COM("MY_COM_OBJECT");
  $myComObject->Myfunction( myVar1, myVar2, 'my string var');
  

  From matt.mercieca

• PHP can define the constants the COM exposes automatic.

  set_ini('com.autoregister-typelib', true);

  or by hand

  com_load_typelib($typelib_name);

  But if the OLE_COLOR is a object instead of an integer, string or other primitive
  using constants (or integers) won't work.

  $Color = new COM('ColorClass');
  $Color->set_color_function($red, $green, $blue);
  

  Or something similar will.

  From Bob Fanger