(PECL event >= 1.2.6-beta)
EventBufferEvent::setCallbacks — Assigns read, write and event(status) callbacks
public EventBufferEvent::setCallbacks ( callable $readcb , callable $writecb , callable $eventcb [, string $arg ] ) : void
Assigns read, write and event(status) callbacks.
readcb
Read event callback. See About buffer event callbacks .
writecb
Write event callback. See About buffer event callbacks .
eventcb
Status-change event callback. See About buffer event callbacks .
arg
A variable that will be passed to all the callbacks.
No value is returned.
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https://www.php.net/manual/en/eventbufferevent.setcallbacks.php