PHP - Manual: Swoole\Connection\Iterator::offsetExists
2024-11-13
(PECL swoole >= 1.9.0)
Swoole\Connection\Iterator::offsetExists — Check if offet exists.
$index
): boolCheck if offset exists.
index
The offset being checked.
Returns TRUE if the offset exists, otherwise FALSE.
官方地址:https://www.php.net/manual/en/swoole-connection-iterator.offsetexists.php