Can PHP's glob() be made to find files in a case insensitive manner?

Glob patterns support character ranges:

glob('my/dir/*.[cC][sS][vV]')

You could do this

$files = glob('my/dir/*');

$csvFiles =  preg_grep('/\.csv$/i', $files);

glob('my/dir/*.[cC][sS][vV]') should do it. Yeah it's kind of ugly.