Description:
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In the following two functions:

object imap_bodystruct  ( resource $imap_stream  , int $msg_number  , string $section  )

string imap_fetchbody  ( resource $imap_stream  , int $msg_number  , string $part_number  [, int $options  ] )

I believe $section and $part_number are equivalent parameters.  The documentation would be less confusing if they both had the same name, instead of two different names.  (Perhaps the names need to be changed in the C code before they can be changed in the documentation?)

Thanks!