Inet Ntop Nullable

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Converts a packed internet address to a human readable representation

function inet_ntop_nullable(
  string $in_addr,
): ?string;

Parameters

• string $in_addr - A 32bit IPv4, or 128bit IPv6 address.

Returns

• null|string - - Returns a string representation of the address.