(PECL apc >= 3.1.4)
apc_bin_dump — Get a binary dump of the given files and user variables
Returns a binary dump of the given files and user variables from the APC cache. A NULL for files or user_vars signals a dump of every entry, whereas array() will dump nothing.
Returns a binary dump of the given files and user variables from the APC cache, FALSE if APC is not enabled, or NULL if an unknown error is encountered.