Using PHP code
$iface=new COM("WatiN.COMInterface");
$ie = $iface->CreateIE("http://www.google.com");
$ie->TextField($iface->FindByName("q"))->TypeText("watin");
$ie->Button($iface->FindByName("btnG"))->Click();
From http://watintestrecord.sourceforge.net/WatiNCOM.html
Result in com_exception: Failed to create COM object 'WatiN.COMInterface': Invalid syntax …
Other COM like
$word = new COM("word.application") or die("Unable to instantiate Word");
is working fine .
Could someone give a step by step manual of how to make WatiN work with PHP 5.3