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Security deep-dive cover: a wire runs from a PLC through OPC UA address-space nodes into a PHP code window configuring SecurityPolicy, SecurityMode, and certificate trust.

Jul 1, 2026 14 min read

OPC UA Security in PHP: Policies, Certificates, and Trust

Ten security policies, three trust modes, and the certificate flow between php-opcua and your PLC — from wide-open defaults to production-ready.

Gianfrancesco Aurecchia security protocol

Jun 19, 2026 7 min read

OPC UA Subscriptions in Laravel: Build a Live Machine Dashboard

Build a live machine dashboard in Laravel with OPC UA subscriptions: a session-manager daemon streams PLC values into cache while Livewire keeps the UI fresh.

Gianfrancesco Aurecchia laravel tutorial