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Hphp Murmurhash

hphp/hack/manual/apis/Functions/hphp_murmurhash.md

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:::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. :::

hphp_murmurhash

Hack
function hphp_murmurhash(
  string $key,
  int $len,
  int $seed,
): int;

Parameters

  • string $key - The key to hash
  • int $len - Number of bytes to use from the key
  • int $seed - The seed to use for hashing

Returns

  • int - The Int64 hash of the first len input characters
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