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

Parameter

string $ip - the IP address to uncompress

Return value

string - the uncompressed IP is an IPv6 address

Note

This function can be called statically.

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