__init

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.

private function __init(
  mixed $cls_or_obj,
  string $const,
): bool;

Parameters

• mixed $cls_or_obj
• string $const

Returns

• bool