Swoole Server exist()
Declaration
<?php
Swoole\Server->exist(int $fd): bool
Parameters
- fd
The file descriptor number of the client connection you want to check exists or not
Return
- success
If success, it returns 'true', otherwise it returns
false.
Description
Check whether the $fd which indicates a TCP client connection exists or not.
Returns true if it does and false if it does not exist.
This method is completely asynchronous, no IO operations as it is based off shared memory.
