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Example code of php-opcua/laravel-opcua

Informations about the package laravel-opcua

OPC UA Laravel Client

Tests Coverage Latest Version PHP Version Stars Laravel Version

Linux macOS Windows

Laravel integration for OPC UA built on opcua-client and opcua-session-manager. Connect your Laravel app to PLCs, SCADA systems, sensors, and IoT devices with a familiar developer experience: a Facade, .env-based configuration, named connections (like config/database.php), and an Artisan command for the optional session manager daemon.

What you get:

Note: This package wraps the full opcua-client API with Laravel conventions. For the underlying protocol details, types, and advanced features, see the client documentation.

### Tested against the OPC UA reference implementation The underlying [opcua-client](https://github.com/php-opcua/opcua-client) is integration-tested against **[UA-.NETStandard](https://github.com/OPCFoundation/UA-.NETStandard)** — the **reference implementation** maintained by the OPC Foundation, the organization that defines the OPC UA specification. This Laravel package is additionally integration-tested via [uanetstandard-test-suite](https://github.com/php-opcua/uanetstandard-test-suite) in both direct and managed (daemon) modes, ensuring full compatibility across all connection strategies. Like [opcua-client](https://github.com/php-opcua/opcua-client) and [opcua-session-manager](https://github.com/php-opcua/opcua-session-manager), unit tests run cross-OS — **Linux, macOS, and Windows** across PHP 8.2–8.5 × Laravel 11/12/13 — on every push. Integration tests stay on Linux (Docker-hosted OPC UA servers).
### Runs on Linux, macOS, and Windows The session manager IPC auto-selects the right transport per platform — zero app-side changes. | Platform | Default transport | Endpoint URI | |---|---|---| | Linux / macOS | Unix-domain socket | `unix://` | | Windows | TCP loopback | `tcp://127.0.0.1:9990` | `config/opcua.php → session_manager.socket_path` defaults to the platform-appropriate URI. Override by setting `OPCUA_SOCKET_PATH` in `.env` to either a `unix://`, a `tcp://127.0.0.1:` (loopback-only — non-loopback hosts are refused on both client and daemon sides), or a scheme-less path (= `unix://`, backwards-compatible with pre-v4.2.0 configs).

Quick Start

That's it. Facade, .env, connect, read. Everything else is optional.

See It in Action

Browse the address space

Read multiple values with fluent builder

Write to a PLC

Call a method on the server

Subscribe to data changes

Auto-publish — no manual publish loop

With auto_publish enabled, the daemon handles subscriptions automatically. Just register Laravel event listeners:

React to events

47 PSR-14 events are dispatched automatically — connections, reads, writes, alarms, subscriptions, cache, retries. Just register listeners:

See Events documentation for the full reference of all 47 events.

Switch connections

Test without a real server

Features

Feature What it does
Facade Opcua::read(), Opcua::browse(), etc. with full PHPDoc for IDE autocompletion
Named Connections Define multiple servers in config/opcua.php, switch with Opcua::connection('plc-2')
Ad-hoc Connections Opcua::connectTo('opc.tcp://...') for endpoints not in config
Session Manager Artisan command php artisan opcua:session for daemon-based session persistence
Transparent Fallback Daemon available? ManagedClient. Not available? Direct Client. Zero code changes
String NodeIds 'i=2259', 'ns=2;s=MyNode' everywhere a NodeId is accepted
Fluent Builder API readMulti(), writeMulti(), createMonitoredItems(), translateBrowsePaths() chain
PSR-3 Logging Laravel's log channel injected automatically via config
PSR-14 Events 47 dispatched events covering every OPC UA operation for observability and extensibility
PSR-16 Caching Laravel's cache store injected automatically. Per-call useCache on browse ops
Write Auto-Detection write('ns=2;i=1001', 42) — omit the type and the client detects it automatically
Read Metadata Cache Cached node metadata avoids redundant reads; refresh on demand with read($nodeId, refresh: true)
Trust Store FileTrustStore with configurable TrustPolicy, auto-accept modes, and certificate management
Type Discovery discoverDataTypes() auto-detects custom server structures
Auto-Publish Daemon auto-publishes for sessions with subscriptions, dispatches PSR-14 events to Laravel listeners
Auto-Connect Per-connection auto_connect with declarative subscriptions config — daemon sets up monitoring on startup
Subscription Management createMonitoredItems(), modifyMonitoredItems(), setTriggering(), transferSubscriptions()
MockClient Test without a server — register handlers, assert calls
Timeout & Retry Per-connection timeout, auto_retry via config or fluent API
Auto-Batching readMulti/writeMulti transparently split when exceeding server limits
Recursive Browse browseAll(), browseRecursive() with depth control and cycle detection
Path Resolution resolveNodeId('/Objects/Server/ServerStatus')
Security 10 policies (RSA + ECC), 3 auth modes, auto-generated certs, certificate trust management

ECC disclaimer: ECC security policies (ECC_nistP256, ECC_nistP384, ECC_brainpoolP256r1, ECC_brainpoolP384r1) are fully implemented and tested against the OPC Foundation's UA-.NETStandard reference stack. However, no commercial OPC UA vendor supports ECC endpoints yet. When using ECC, client certificates are auto-generated if client_certificate/client_key are omitted, and username/password authentication uses the EccEncryptedSecret protocol automatically. | History Read | Raw, processed, and at-time historical queries | | Typed Returns | All service responses return public readonly DTOs |

Documentation

Full documentation is available in docs/. Highlights:

Section Covers
Getting started — Upgrading Concepts, install, first connection
Configuration — Publishing & overriding .env, config file, named connections
Using the client — Using builders Facade, DI, lifecycle
Operations — History Read/write, browse, subscribe, history
Session manager — Monitoring Persistent sessions via daemon
Events — Queued listeners PSR-14 + Laravel listeners
Observability — Telescope & Pulse Logs, cache, dev tools
Security — Trust store Security policies, certs, trust
Testing — Integration tests Unit + integration tests
Integrations — Filament Laravel ecosystem
Reference — Exceptions Public API
Recipes — Production deployment Task-oriented walkthroughs

Testing

146+ unit tests with 99%+ code coverage. Integration tests run against uanetstandard-test-suite — a Docker-based OPC UA environment built on the OPC Foundation's UA-.NETStandard reference implementation — in both direct and managed (daemon) modes.

Ecosystem

Package Description
opcua-client Pure PHP OPC UA client
opcua-cli CLI tool — browse, read, write, watch, discover endpoints, manage certificates, generate code from NodeSet2.xml
opcua-session-manager Daemon-based session persistence across PHP requests. Keeps OPC UA connections alive between short-lived PHP processes via a ReactPHP daemon and Unix sockets. Separate package by design — see ROADMAP.md for rationale.
opcua-client-nodeset Pre-generated PHP types from 51 OPC Foundation companion specifications (DI, Robotics, Machinery, MachineTool, ISA-95, CNC, MTConnect, and more). 807 PHP files — NodeId constants, enums, typed DTOs, codecs, registrars with automatic dependency resolution. Just composer require and loadGeneratedTypes().
laravel-opcua Laravel integration — service provider, facade, config (this package)
uanetstandard-test-suite Docker-based OPC UA test servers (UA-.NETStandard) for integration testing

Community

Have questions, ideas, or want to share what you've built? Join the GitHub Discussions.

Connected a PLC, SCADA system, or OPC UA server? We're building a community-driven list of tested hardware and software. Share your experience in Tested Hardware & Software — even a one-liner like "Siemens S7-1500, works fine" helps other users know what to expect.

Contributing

Contributions welcome — see CONTRIBUTING.md.

AI-Ready

This package ships with machine-readable documentation designed for AI coding assistants (Claude, Cursor, Copilot, ChatGPT, and others). Feed these files to your AI so it knows how to use the library correctly:

File Purpose
llms.txt Compact project summary — architecture, Facade, configuration, session manager. Optimized for LLM context windows with minimal token usage.
llms-full.txt Comprehensive technical reference — every config key, method, DTO, event, trust store, managed client. For deep dives and complex questions.
llms-skills.md Task-oriented recipes — step-by-step instructions for common tasks (install, read, write, browse, named connections, session manager, security, testing, events). Written so an AI can generate correct, production-ready code from a user's intent.

How to use: copy the files you need into your project's AI configuration directory. The files are located in vendor/php-opcua/laravel-opcua/ after composer install.

Versioning

This package follows the same version numbering as php-opcua/opcua-client. Each release of laravel-opcua is aligned with the corresponding release of the client library to ensure full compatibility.

Changelog

See CHANGELOG.md.

License

MIT

All versions of laravel-opcua with dependencies

PHP Build Version
Package Version
Requires php Version ^8.2
php-opcua/opcua-client Version ^4.4.0
php-opcua/opcua-session-manager Version ^4.4.0
psr/event-dispatcher Version ^1.0
illuminate/support Version ^11.0|^12.0|^13.0
illuminate/console Version ^11.0|^12.0|^13.0
illuminate/contracts Version ^11.0|^12.0|^13.0
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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