php docs note

Hi, I'm a new user to php and spent quite a bit of time figuring out how to get the function imagecreatefrompng() defined. I found on a forum though google, that it lived in the php_gd.dll library. My note is it would be nice if in the documentation on php.net it would tell you which module the function belonged to or if it is built in. The docs do not mention this. Just would have saved me a bit of time ramping up on php. Thanks -Sean