如何使用swig为c ++生成php界面

Question

I have tried a hundred things and I can not get my .so file to interface with php using swig. I can generate the files, then I had to compile Zend and link with that to make the .so but it keeps seg faulting on load now.

Can some one please walk me though how to use swig to generate a PHP interface for a C++ library? The documentation on the swig web site is not helpful.

Answer 1

I was stuck in the same situation but then the answer by Gaius clarified that the example.i file must be created first, it is not just a fancy parameter to tell swig the name of your project. Paragraph 2.3.1 of that guide ! tells what this example.i file is about.

/* File : example.i */
%module example
%{
/* Put headers and other declarations here */
extern double My_variable;
extern int    fact(int);
extern int    my_mod(int n, int m);
%}

extern double My_variable;
extern int    fact(int);
extern int    my_mod(int n, int m);

Answer 2

This example seems informative. Have you tried it?

Answer 3

Hi Double check the permissions of the folder your PHP Code residing. I faced the same problem. In fact I was doing some file read/write stuff too in the same directory and I had to set permission to my php project accordingly , otherwise it used to say No Data Received and when I see in apache error log I see Segmentation Fault.

So please check. this may help.

And yes the documentation in Swig site is still not much helpful for PHP developers.