php urlencode different from Googles urlencoding?

[delpino]

Hello

if I search special characters on Google, like umlauts or chinese characters it will convert it to something like this:

q=%C3%84

This will be shown if I search for the "A umlaut" (Ä).

If I try the same with php to urlencode the "A umlaut":

echo urlencode('Ä')

The result is not %C3%84 but %C4

Anybody knows why?

PS: If I urlencode a "question mark" both Google and php urlencode is the same. But other are different like the umlauts or chinese characters. Also Wikipedia uses the same encoding like Google.