Trigger Sampled Error

:::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. :::

function trigger_sampled_error(
  string $error_msg,
  int $sample_rate,
  int $error_type = E_USER_NOTICE,
): bool;

Parameters

• string $error_msg
• int $sample_rate
• int $error_type = E_USER_NOTICE

Returns

• bool