Description:
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i'd suggest, when we open file, if it's not in open_basedir, check if it is_uploaded_file(), if yes, let's open it

the way we can only do is to use is_uploaded_file() and move_uploaded_file(), we can't even do file_size(), which is troublesome. and we have to prepair a writable directory within open_basedir, move in the file, fopen() and fread()

but i don't see any good point, when we're using super safe $_FILE;

if $_FILES['userfile']['tmp_name'] is "uploaded://xFkcg.tmp", maybe nice for php4.3+