Linking third party C library to php code / Extension

[krups]

I have a C application foo.c which generates libFoo.so.

 

foo.c

#include <stdio.h>

 

int FooBar(int value)

{

 

    printf("Hello, World.\n");

 

    return 1;

}

 

I want to load this libFoo.so into index.php file and call FooBar(); from libFoo.so.

 

dl(libFoo.so);

FooBar();

 

This does not work in PHP. What is the correct way to implement this functionality?

 

--------------------------------------------------------------------------------------------

 

I tried to create an extension "myfile" (using ./ext_skel) which has FooBar() function defined. But I am not able to call FooBar() function defined in foo.c. Through PHP_FUNCTION(FooBar) (defined in ext/myfile.c), I want to call FooBar() implemented in foo.c.

 

Kindly help how should this be implemented.

 

Thanks,

Krups

 

 

[per1os]

Are you sure you have the libFoo.so in the correct place. Are you getting any error messages?

 

Are you using PHP4 or PHP5?

 

    Note:  dl() is not supported in multithreaded Web servers. Use the extensions  statement in your php.ini when operating under such an environment. However, the CGI and CLI build are not  affected !

 

    Note: As of PHP 5, the dl() function is deprecated in every SAPI except CLI. Use Extension Loading Directives method instead.

 

    Note: Since PHP 6 this function is disabled in all SAPIs, except CLI, CGI and embed.

 

    Note: dl() is case sensitive on Unix platforms.

 

    Note: This function is disabled in safe mode.

 

http://us2.php.net/manual/en/function.dl.php

 

Are you running in Safemode? Are you on a multithreaded enviroment. Are you sure the case is correct?

 

Just making sure all the basic grounds are covered.

[krups]

Hi,

 

We are using apache server on linux with PHP 5.

 

Could you please give me an example of steps so as to be able to build an extension and call a function from within third-party's C++ library. like: libFoo.so

 

Thanks,

Krupa

[trq]

Take a look at the Zend API and examples.