(PECL ev >= 0.2.0)
EvIo::__construct — Constructs EvIo watcher object
public EvIo::__construct ( mixed $fd , int $events , callable $callback [, mixed $data [, int $priority ]] )
Constructs EvIo watcher object and starts the watcher automatically.
fd Can be a stream opened with fopen() or similar functions, numeric file descriptor, or socket.
events Ev::READ and/or Ev::WRITE . See the bit masks .
callback See Watcher callbacks .
data Custom data associated with the watcher.
priority Returns EvIo object on success.
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https://www.php.net/manual/en/evio.construct.php