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Unserialize Pure

hphp/hack/manual/apis/Functions/unserialize_pure.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. :::

Pure variant of unserialize

Hack
function unserialize_pure(
  string $str,
  darray<string, mixed> $options = dict [
],
): mixed;

Unserializing objects with impure implementations of the __wakeup method will result in coeffect violations.

Parameters

  • string $str
  • darray<string, mixed> $options = dict [ ]

Returns

  • mixed
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