Symfony 7.4+ / 8.x bundle for OPC UA. Autowires `OpcuaManager` and `OpcUaClientInterface` via DI, exposes YAML-based named connections, ships an `opcua:session` console command for the session-manager daemon, and dispatches all 56 OPC UA events through Symfony's `EventDispatcherInterface`. Use this skill whenever the user is working with OPC UA from a Symfony application — controllers, Messenger handlers, console commands, scheduled tasks, EasyAdmin / API Platform endpoints, or Pest tests.
Connect a PHP OPC UA client over opc.https:// (OPC UA Part 6 §7.4) using php-opcua/opcua-client-ext-transport-https v4.4.0 — a ClientTransportInterface that exchanges each UA message as one HTTPS POST, with TLS acting as the secure channel (no OpenSecureChannel). Ships a Binary encoding (§7.4.4, production-ready) and a JSON encoding (§7.4.5, GetEndpoints-only reference). Use this skill whenever a task involves opc.https://, opc.wss://-style HTTPS OPC UA transport, HTTPS binary/JSON mappings, corporate-proxy/firewall-friendly OPC UA over 443, or wiring a custom transport into opcua-client.
Accept OPC UA Reverse Connect (ReverseHello / RHE) handshakes in PHP using php-opcua/opcua-client-ext-reverse-connect v4.4.0 — the client-side half of OPC UA Part 6 §7.1.2.3. The server dials the client; this package listens, decodes and whitelists the RHE frame, then hands a fully connected Client back through the standard ClientBuilder. Use this skill whenever a task involves Reverse Connect, ReverseHello, RHE frames, server-initiated OPC UA connections, NAT/firewall traversal for opc.tcp://, edge gateways calling home, or extending php-opcua/opcua-client with a reverse listener.
Drop pre-generated PHP types for 51 OPC Foundation companion specifications (Robotics, MachineTool, DI, Machinery, BACnet, MTConnect, AutoID, ISA-95, PackML, PROFINET, …) into a php-opcua/opcua-client application. One ClientBuilder::loadGeneratedTypes(new RoboticsRegistrar()) call and every read on a structured node returns a typed PHP enum or readonly DTO instead of a raw ExtensionObject. Use this skill whenever an OPC UA task involves a companion specification — typed enums, Structure DataType decoding, well-known NodeId constants, dependency-resolved codec registration, or re-generating PHP from NodeSet2.xml.
Interact with OPC UA servers from the terminal using php-opcua/opcua-cli. 11 single-shot commands — browse, read, write, watch values in real time, explore the address space with an interactive TUI, discover endpoints, manage server certificate trust, generate typed PHP classes from a NodeSet2.xml, dump a server's address space to NodeSet2.xml. Pipe-friendly JSON output, no framework dependencies. Use this skill whenever the user wants to script OPC UA from a shell, debug a server interactively, generate PHP from a vendor's NodeSet2.xml, or set up CI checks against an OPC UA endpoint.
Keep OPC UA sessions alive across PHP requests via a ReactPHP daemon and local IPC (Unix-domain socket on Linux/macOS, TCP loopback on Windows — auto-selected). ManagedClient is a drop-in OpcUaClientInterface replacement for php-opcua/opcua-client's Client — same API surface, persistent sessions, ~150ms handshake overhead paid once instead of every request. Use this skill whenever the user wants to eliminate per-request OPC UA connection cost, run OPC UA from PHP-FPM / Laravel / Symfony web requests, keep subscriptions / monitored items alive between requests, or operate a long-running OPC UA daemon process.