(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)
swoole_client_select — Get the file description which are ready to read/write or error
&$read_array
, array &$write_array
, array &$error_array
[, float $timeout = 0.5
] )
read_array
write_array
error_array
timeout