string Net_IPv6::uncompress (
Uncompresses an IPv6 address. RFC 2373 allows you to compress zeros in an address to '::'. This function expects an valid IPv6 address and expands the '::' to the required zeros.
FF01::101 -> FF01:0:0:0:0:0:0:101 ::1 -> 0:0:0:0:0:0:0:1
string $ip - the IP address to uncompress
string - the uncompressed IP is an IPv6 address
This function can be called statically.