OPC UA from PHP? Yes, with Zero C Extensions — Introducing php-opcua/opcua-client

If you've ever tried to connect a PHP application to industrial machinery — a PLC, a SCADA system, a historian — you've probably hit a wall. The OPC UA standard is the lingua franca of industrial IoT, but most implementations assume you're writing in C++, Python, or .NET. PHP? Good luck finding anything that isn't a thin HTTP wrapper around a gateway you have to run separately. That changes with php-opcua/opcua-client . What Is OPC UA? OPC UA (Unified Architecture) is an industrial communication