Why use shared memory instead of a pipe or a socket? In fact, since the server already uses a socket, you could completely avoid the intermediary Perl script.

Current design: PHP client ⇔ server Perl Proxy client &hArr Perl Processor server

Simpler design: PHP client ⇔ server Perl Processor

but there may be multiple threaded php scripts running which wouldn't allow that to work.

That makes no sense. You'll need to handle the fact you have multiple clients no matter what communication mechanism you use.

In reply to Re: Constant communication between processes by ikegami
in thread Constant communication between processes by citycrew

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