How does a PHP socket allow two socket client to communicate between

PHP socket How to let two socket client communication such as client a->server->client b now I use the database to save the data can not be achieved through the database do you ask God

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PHP socket How to let two socket client communication such as client a->server->client b now I use the database to save the data can not be achieved through the database do you ask God

It can be done by a server side.

Yes, as you can see through the server relay on the line. The data is stored on the server, either with a file or in memory, without a database.
Communication flow:
Client A, B connects to the server and sends its own UID, the server holds the client's socket descriptor socket_id and UID.
When a, b mutually sends the information, by the server according to the other side UID query corresponding socket_id, from the corresponding socket sends the data to be able.

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