Description:
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Hi,
I am trying to encode urls with the function idn_to_ascii. It 
works well except when the host contains utf-8 characters, 
like ? ? and ? and without a protocol. It returns OK, but it 
isn't.

Thank you.

Reproduce code:
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$url = "http://t?st.se";
$asciiurl = idn_to_ascii($url);

Although $url = "http://www.t?st.se" returns expected result. Also $url = "http://somethingelse.t?st.se" returns expected result. It's just when http://hostwith???.com it fails.

Expected result:
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Expected url returned: http://www.xn--tst-qla.se

Actual result:
--------------
The url returned: xn--http://tst-x5a.se (not a valid http 
address)