I'm writing a PHP5 extension, and while I could write it in C, it would be easier to use C++ and take advantage of the STL and Boost.
Trouble is, the tutorials I've seen only deal with C, and I'm looking for a basic example which uses C++
Here's what I've tried so far:
config.m4
[ --enable-hello Enable Hello World support])
if test "$PHP_HELLO" = "yes"; then
AC_DEFINE(HAVE_HELLO, 1, [Whether you have Hello World])
PHP_NEW_EXTENSION(hello, hello.cpp, $ext_shared)
fi
php_hello.h
Note my attempt to declare the bits that PHP interfaces with as extern "C"
#ifndef PHP_HELLO_H
#define PHP_HELLO_H 1
extern "C" {
#define PHP_HELLO_WORLD_VERSION "1.0"
#define PHP_HELLO_WORLD_EXTNAME "hello"
PHP_FUNCTION(hello_world);
extern zend_module_entry hello_module_entry;
#define phpext_hello_ptr &hello_module_entry
}
#endif
hello.cpp
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_hello.h"
static function_entry hello_functions[] = {
PHP_FE(hello_world, NULL)
{NULL, NULL, NULL}
};
zend_module_entry hello_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
PHP_HELLO_WORLD_EXTNAME,
hello_functions,
NULL,
NULL,
NULL,
NULL,
NULL,
#if ZEND_MODULE_API_NO >= 20010901
PHP_HELLO_WORLD_VERSION,
#endif
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_HELLO
ZEND_GET_MODULE(hello)
#endif
PHP_FUNCTION(hello_world)
{
RETURN_STRING("Hello World", 1);
}
....and here are my build errors:
If I phpize, configure and make this, I get the following (reformatted for clarity)
$ make
/bin/bash /home/paul/php5/php-5.2.8/ext/hello2/libtool
--mode=compile
-I.
-I/home/paul/php5/php-5.2.8/ext/hello2 -DPHP_ATOM_INC
-I/home/paul/php5/php-5.2.8/ext/hello2/include
-I/home/paul/php5/php-5.2.8/ext/hello2/main
-I/home/paul/php5/php-5.2.8/ext/hello2
-I/usr/local/include/php
-I/usr/local/include/php/main
-I/usr/local/include/php/TSRM
-I/usr/local/include/php/Zend
-I/usr/local/include/php/ext
-I/usr/local/include/php/ext/date/lib
-DHAVE_CONFIG_H
-c /home/paul/php5/php-5.2.8/ext/hello2/hello.cpp
-o hello.lo
libtool: compile: unrecognized option `-I.'
libtool: compile: Try `libtool --help' for more information.
make: *** [hello.lo] Error 1
I suspect I need more work doing to the config.m4 in order to create a working makefile but I'm pretty new to the GCC toolchain.
If it helps, I'm only targetting php 5.2.6+, and only on Linux (specifically, Ubuntu 8.04). My build environment is using Ubuntu 8.10, using gcc 4.3.2
Pointers gratefully received!
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