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EventListener::setCallback

PHP function Edit on GitHub ✎

(PECL event >= 1.2.6-beta)

The setCallback purpose

Description

EventListener::setCallback(callable $cb, mixed $arg = null): void

Adjust event connect listener's callback and optionally the callback argument.

Parameters

cb

The new callback for new connections. Ignored if null.

Should match the following prototype:

callback(EventListener $listener = null, mixed $fd = null, array $address = null, mixed $arg = null): void
listener

The EventListener object.

fd

The file descriptor or a resource associated with the listener.

address

Array of two elements: IP address and the server port.

arg

User custom data attached to the callback.

arg

Custom user data attached to the callback. Ignored if null.

Return Values

Void

Source: reference/event/eventlistener/setcallback.xml · from the official PHP manual (php/doc-en)