Description:
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when path has multi-byte chars, basename() does not return correct file basename. I did not have this problem in PHP 4.3.7. In the example, $hehe variable has two gb2312-encoded chinese chars. This might relate to setlocale or something like that.

Reproduce code:
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$hehe = "hehe/?պ? haha kkk";
echo basename($hehe)."\n";
echo substr($hehe, strrpos($hehe, "/")+1);

Expected result:
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?պ? haha kkk
?պ? haha kkk

Actual result:
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 haha kkk
?պ? haha kkk