Hi All,<br><br>I need to extend a PHP application with some Erlang-based server functionality. More specifically, the Erlang app's role is to provide some services for which non-trivial state must be maintained, and which will be queried by an AJAX client periodically (the client is currently being written using PHP as the "primary" backend - there is a chance that YAWS could be accepted as the server for that part, but probably not at this time).
<br>So, my question is this: how should one perform such integration? The methods I've basically come up with are:<br>1) Open a socket from a PHP script and query the Erlang backend using a proprietary protocol (the queries are simple, but might return a couple KB). Is JSON generally more convenient for relatively flat datastructures?
<br>2) As (1) above, but let the Erlang backend build the Javascript part (incl. JSON/other response data).<br>3) As (1) but extend the PHP interpreter so it opens a persistent connection. Does anyone know how hard this might be? AFAIK Apache threads are mapped to PHP threads, which "share nothing". Is this correct?
<br>4) Somehow get Management to agree on moving the entire AJAX bit to YAWS (unlikely). In this case, I would open a separate socket for YAWS.<br><br>Regards,<br>Alex.<br><br>