(PECL event >= 1.2.6-beta)
EventBufferEvent::readBuffer — Drains the entire contents of the input buffer and places them into buf
public EventBufferEvent::readBuffer ( EventBuffer $buf ) : bool
Drains the entire contents of the input buffer and places them into buf .
buf Target buffer
Returns true on success; Otherwise false.
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https://www.php.net/manual/en/eventbufferevent.readbuffer.php