This directory contains examples for OPC client ans subscriber development in PHP.The examples cover OPC Data Access (OPC DA), OPC Alarms&Events (OPC A&E), OPC XML, and OPC Unified Architecture (OPC UA) specifications, including OPC UA PubSub. They are supported on Microsoft Windows.

The examples can be run

• on the Web server, or
• standalone (in the console).

The examples work with our sample servers and publishers. Most of them reside on the Web; OPC "Classic" servers for Windows are installed using the OPC Studio Setup program.

Useful links:

• OPC client and subscriber examples in the documentation.
• OPC client and subscriber examples in PHP on GitHub.
• OPC Studio Setup program
• Getting Started under COM.
• OPC Labs Knowledge Base.

Need help, or missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.