Sockets performance and overhead

Which of these two so开发者_如何学Ccket connectivity options are more efficient to use, in terms of having better performance and less overhead?

socket_connect family or fsockopen?

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As far as I know the performance is very much the same, but the result of the connection is different after initialization. For example fsockopen() will open the connection and immediately go to LISTENING-state, where socket_create() will just create the connection and socket_open() put it in LISTENING-state.

You could say: fsockopen() === socket_open(socket_create(), ADDRESS)

Furthermore, after you do socket_shutdown() and socket_close(), you will leave the connection in TIME_WAIT-state, which will will make the socket wait until the receiving end of the socket disconnects, which can take a while.

All in all, there quite the same, choose the one you like the best and suits your intention best. If you want to pre-create all sockets but only connect in a certain time, go with socket_create(), else use fsockopen() as it's easier.

If you have your own webserver and no intention of distributing your code, you can also take a look into cURL, which is essentially the same as both other options but has more failsaves built-in.