(PECL ev >= 0.2.0)
EvLoop::fork — Creates EvFork watcher object associated with the current event loop instance
final public EvLoop::fork ( callable $callback [, mixed $data = null [, int $priority = 0 ]] ) : EvFork
Creates EvFork watcher object associated with the current event loop instance
All parameters have the same meaning as for EvFork::__construct()
Returns EvFork object on success.
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https://www.php.net/manual/en/evloop.fork.php