Swoole\Connection\Iterator::offsetExists
(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)
Swoole\Connection\Iterator::offsetExists — Check if offet exists.
说明
public Swoole\Connection\Iterator::offsetExists
( int
$index
) : booleanCheck if offset exists.
参数
-
index -
The offset being checked.
返回值
Returns TRUE if the offset exists, otherwise FALSE.