Note that fgetcsv() uses the system locale setting to make assumptions about character encoding.
So if you are trying to process a UTF-8 CSV file on an EUC-JP server (for example),
you will need to do something like this before you call fgetcsv():

setlocale(LC_ALL, 'ja_JP.UTF8');

[Also not that setlocale() doesn't *permanently* affect the system locale setting]