Skip to main content

enum_exists

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.

Checks if the enum exists

function enum_exists(
  string $class_name,
  bool $autoload = true,
): bool;

Parameters​

  • string $class_name
  • bool $autoload = true -

Returns​

  • bool - - Returns TRUE if enum exists, FALSE if not