Any of the modes specified in the documentation of
fopen().
Note:
Currently, mode is ignored and is always
"rb". This is due to the fact that zip support
in PHP is read only access.
Return Values
Returns TRUE on success or FALSE on failure.
Note:
Unlike fopen() and other similar functions,
the return value of zip_entry_open() only
indicates the result of the operation and is not needed for
reading or closing the directory entry.
