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I'm making a PHP-based web app which, on one of its parts, must control a device with the parallel port, I want it to allow port selection from the LPT list, not dealing if possible with hex addresses.

Which options I have for controlling that hardware from the web app over the LPT port on Win64 clients?

The goal of the web app is to replace an old delphi software, which (in the concerning module) controlled the LPT port by pointing to address 378h, sending a constant pulse (of adjustable duration) to pin 2 of the port.

This approach has become a problem when trying to use newer computers, as any PCI to LPT card gets a very different address range, and I haven't found if there is any support for that kind of signals on Win 10 x64, from microsoft or another provider.

Edit: The hardware will be on client side and the web app will be stored on a hosting service, pending to be chosen.

Thanks.

Yohann Hernandez
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  • Are you asking how to connect to hardware connected to the server or the client? Or are the clients going to install a web server and host their own instance of your web app locally on their computers? – M. Eriksson Oct 10 '19 at 05:32
  • The hardware will be on client side and the web app will be stored on a hosting service (pending to be chosen). Thanks for the quick answer. – Yohann Hernandez Oct 10 '19 at 05:35
  • Then you won't be able to use PHP for it. PHP is a server side language, meaning that your PHP code will be executed on the server, and doesn't have anything to do with the client. – M. Eriksson Oct 10 '19 at 05:36
  • Then, is there a way to integrate the intended behavior with another language or an addon, or something different, still being managed by the app? – Yohann Hernandez Oct 10 '19 at 05:39

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