Getting Started with PHP Extension-Development

How Do I Build My First PHP Extension in C on Linux GCC?

extension for this example.

<?php
    function hello_world() {
        return 'Hello World';
    }
?>

### config.m4

PHP_ARG_ENABLE(hello, whether to enable Hello
World support,
[ --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.c, $ext_shared)
fi

### php_hello.h

#ifndef PHP_HELLO_H
#define PHP_HELLO_H 1
#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.c

#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);
}

Building Your Extension
$ phpize
$ ./configure --enable-hello
$ make

After running each of these commands, you should have a hello.so

extension=hello.so to your php.ini to trigger it.

 php -r 'echo hello_world();'

you are done .;-)

read more here

for Easy way to just try zephir-lang to build php extension with less knowledge of

namespace Test;

/**
 * This is a sample class
 */
class Hello
{
    /**
     * This is a sample method
     */
    public function say()
    {
        echo "Hello World!";
    }
}

compile it with zephir and get test extension

Using Hiphop for PHP extension development

As far as I know, the point of HipHop is to bypass PHP's Virtual Machine known as Zend Engine.

In order to create a PHP extension, you have to hook into the Zend Engine.

So if HipHop bypasses the execution done by ZE, I don't see how it'd be possible to create a PHP class that gets translated to C++ one that would then be used to create an extension.

HipHop doesn't convert PHP source code, it converts the BYTE code. It's a huge difference, if it were the former.. would there be a need for using another language? :)

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