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lz4_uncompress

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.

This function uncompresses the given string given that it is in the lz4lib data format, which is primarily used for compressing and uncompressing memcache values

function lz4_uncompress(
  string $compressed,
): mixed;

Parameters​

  • string $compressed - The data compressed by lz4compress().

Returns​

  • string - - The uncompressed data or FALSE on error