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How to get PHP standard functions in C?

Posted by: admin July 12, 2020 Leave a comment


How can I call PHP functions from my C application?


include <php.h>

int main()
  return json_encode(""); // This is a PHP function coming from php.h

Note: PHP function collections is very managed and organized, i just want to have that logic in my C application, everything organized on-demand. Thats the beauty i found in PHP language.

How to&Answers:

Since I also want my downvote today, I will try to answer to this question 😉

I don’t know if what you’re asking is possible. But I’m sure of some other things :

  1. The result will be really complicated, slow and will lead to many problems with dependencies and portability.
  2. You will get much better answer if you try to explain why you’re asking this and what are the goals you want to achieve
  3. The major part of PHP is implemented in C, so everything your doing in PHP can be done in C too. Concerning this, here’s some reading about Turing Completeness.
  4. Learning the C language instead of wanting to use some known PHP functions will open you new perspectives which will only improve your coding skills.
  5. You should ask you if you really want / have to use C, or if it’s better to use some other higher level language.
  6. If you want to decode JSON messages in C, http://www.json.org/ lists plenty of C implementation of the standard you can use. For base64 decoding, see this How do I base64 encode (decode) in C? for example.


No you cannot. You can however “extend” PHP using C and might be able to cook something up like this but it’s not really useful. Why do you want to do this?


Since C is faster than PHP, and PHP is written in C, I am thinking that trying to use PHP functions in C would make your program unnecessarily slow. And I am pretty sure that it is impossible.


You could, and actually this is a project I have in mind.
What has to be done is to get the PHP SPL code and just rewrite it (clean it a little) to be used as a regular C library.
I’d like to do it some day.