I have a need to call a C language function from a PHP script.

The function, which I wrote, looks like this:

* foo(): Takes a string in sIn and writes another string into sOut
according to what is passed in, and the
* value at *pcch. Will not write more than *pcch bytes to output,
including null terminator.
* Upon return, *pcch contains number of chars written to sOut.
void foo(const char * sIn, char * sOut, size_t * pcch);

So basically I need to pass down a string, and get back a string.

I have been using swig but clearly I ain't getting it (I am good in C
but new to PHP). Lots of warnings, crashes, and so on. No happiness.

The swig docs show how to pass strings between python, java, etc., and
C, but nothing on C <---> PHP.

Can anyone help me with a fragment of sample code, or a link?



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