crypt() now has Blowfish and extended DES support, and
crypt() features are now 100% portable. PHP has its own
internal crypt implementation which drops into place when support for
crypt or crypt_r is not found.
getopt() accepts "long options" now on all platforms.
Optional values and = as seperator for shortopts are now supported.
- fopen() got a new mode option
(n), which passes will pass
O_NONBLOCK to the underlaying
syscall() call.
opendir(), dir() and
scandir() functions will not use the default context
if no context argument is passed.