I have to call some c++ functions in php files. how can i create an extention dll which will work with php.

If you are using php on a linux machine you can use the system function.

http://uk2.php.net/manual/en/function.system.php

Or if you are using Windows machines, you can use shell_exec function.

http://uk2.php.net/shell_exec

example:
[PHP]$Info = explode("\n", shell_exec(".\\progs\\program.exe"));
[/PHP]
Will dump the output of program.exe in folder /progs/ to $Info using next line carriage as the exploder/seperator.

Hope that helps

there is a techniq to do this using ext_skel
thank u.