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Editorial Team
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Asked: 2026-05-23T03:17:39+00:00

I have a C# application that needs to call a PHP script, and get

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I have a C# application that needs to call a PHP script, and get the output, in the fastest possible way. The options I explored:

  • Executing the script with PHP CLI (Pro: Easy / Cons: No Opcode Cache / Precompilation ]
  • Compiling the PHP (Phalanger, Hiphop, etc.) [Pro: No Webserver / Con: Compatibility ]
  • Using an embedded webserver (AppWeb, Cherokee, Lighttpd) [Pro: Simple / Cons: Deployment ]

Are there any other options left?

EDIT: The best possible option would be to make use of the build-in FastCGI server of PHP, by running php-cgi.exe -b 127.0.0.1. But there seems no (C#) code to talk to a server available. While there are so many server-side libraries (like FCGIDotNet and SharpCGI), they all implement the server-side of the protocol.

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  1. Editorial Team

    One other option could be to run the PHP CLI script as a daemon (good blog post on this here).

    If the script has a particularly long startup/cleanup, then running it as a daemon would mean that you only do this once.

    The downside is that you’d need to write a way of communicating with that daemon, to get the data from C# to it. You’d also need to keep an eye out on its memory usage over time.

    The best method is always going to be specific to your script though.

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