Swoole\Event::isset
PHP function
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Check if a socket is being monitored in the event loop
Description
Swoole\Event::isset(mixed $fd, int $events = SWOOLE_EVENT_READ | SWOOLE_EVENT_WRITE): bool
Checks whether the specified file descriptor is being monitored for the given event types in the event loop.
Parameters
fdFile descriptor (stream/socket resource, integer, or object).
eventsEvent types to check (bitmask of
SWOOLE_EVENT_READand/orSWOOLE_EVENT_WRITE).
Return Values
Success
Examples
Checking event monitoring status
php
<?php
$fp = stream_socket_client("tcp://www.qq.com:80");
Swoole\Event::add($fp, function ($fp) {
echo fread($fp, 8192);
}, null, SWOOLE_EVENT_READ);
var_dump(Swoole\Event::isset($fp, SWOOLE_EVENT_READ)); // Output: true
var_dump(Swoole\Event::isset($fp, SWOOLE_EVENT_WRITE)); // Output: false