binary data is no longer read correctly

```
I am not sure how I got to this point but the results I get from reading
files the previously worked is they are now unreadable. I traced the issue
line # 111 where the header of the file is read to 8 characters but returns
13 characters instead. It is obviously reading the binary data much
differently and I have tried many version of php with my hosting provider
and it doesn't correct it.

```

Original issue reported on code.google.com by `bradmcma...@gmail.com` on 1 Mar 2010 at 8:31

Start by inspecting line 111 and the surrounding file-reading logic; the issue does not name the file. Reproduce the reported mismatch between the expected 8-character header and the returned 13 characters, then verify that binary files are read correctly without altering their header data.

Written by the indexing model from the issue text.