OPC UA Reverse Connect listener for PHP (Part 6 7.1.2.3). Lets a server behind NAT/firewall dial into your PHP process and hand the live socket off to opcua-client without a second TCP handshake. Extends php-opcua/opcua-client v4.4+.
php nat-traversal industrial-automation iiot opc-ua firewall-traversal opcua edge-computing opcua-client industry-4-0 reverse-connect reverse-hello
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Updated
Jun 4, 2026 - PHP