OPC UA from PHP? Yes, with Zero C Extensions — Introducing php-opcua/opcua-client
The article introduces php-opcua/opcua-client, a PHP library that enables direct communication with industrial machinery using the OPC UA standard. This implementation allows PHP applications to connect to PLCs and other devices without relying on external gateways or additional languages. It simplifies the process of integrating PHP with industrial IoT by providing a native solution for the complex OPC UA protocol.
- ▪php-opcua/opcua-client implements the entire OPC UA binary protocol stack natively in PHP.
- ▪The library requires only ext-openssl as a runtime dependency, eliminating the need for additional components.
- ▪Users can connect to PLCs and read or write data with minimal configuration using simple PHP commands.
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Record
| Original publisher | DEV Community |
| Canonical URL | https://dev.to/gianfriaur/opc-ua-from-php-yes-with-zero-c-extensions-introducing-php-opcuaopcua-client-p6 |
| Publication time | Tue, 28 Apr 2026 09:06:08 +0000 |
| Retrieval time | 2026-04-28T09:25:06.520Z |
| Last seen | 2026-04-28T09:25:06.520Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 2LnvgxiA0w4E |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 130513) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Gianfrancesco Posted on Apr 28 OPC UA from PHP? Yes, with Zero C Extensions — Introducing php-opcua/opcua-client #php #iot #industrialautomation #laravel 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.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV Community.
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