__construct

:::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. :::

( excerpt from http://php.net/manual/en/reflectionparameter.construct.php )

public function __construct(
  $function,
  $parameter,
  $info = NULL,
);

Constructs a ReflectionParameter class. Warning: This function is currently not documented; only its argument list is available.

Parameters

• $function
• $parameter
• $info = NULL

Returns

• mixed - No value is returned.