php-ext-embed

Build Status: [] (http://travis-ci.org/reeze/php-ext-embed)

What it is

php-ext-embed is a tool to help you embed sections of PHP script right into your php extension (which produced as *.so file, written in C).

Why should I use it

Mixed-language programming with PHP and C!

The reason why we are writing PHP extensions is simple - improving performance by implementing critical algorithms in C under the most of circumstances, but around which you need some business logic code to wrap it, which is always very complicated using Zend APIs that make the green hands trapped.

Our work let you implant PHP lib into a specific extension file, then you can only write the performance critical part with C, and the rest with PHP. Finally, you get a single extension .so file without any external phplib dependency, and get rid of all troubles of version incompatibility.

It makes it much easier to maintain and distribute your extension.

How to use

Please refer to sample to have a quick view at our sample extension.

Quick start

1. Clone this project.
2. make.
3. Now the extension file is built at sample/modules/sample.so, add an entry in php.ini and try it out.
4. Update scripts in sample/lib/*.php files and make to test.

Upgrade from your exist extension

1. Copy folder of this project to your extension root path.
2. execute php-ext-embed/bin/php-ext-embed upgrade, it will update your files automaticly

Or you could add those lines to your files yourself.

You can refer to sample.c and config.m4 in sample/ directory for example.

Or all in one diff: https://github.com/reeze/php-ext-embed/commit/3d5a8bab58ffe2d10c465ba4a671e1b89be3b2f3

1. Add include instructions to your main file of extension at the top.

   #include "php_ext_embed.h"
   #include "php_ext_embed_libs.h"
   

2. Add macros that we provide to your SAPI functions to hook each stage, where "sample" is your module's name.

   PHP_EXT_EMBED_MINIT(sample);
   PHP_EXT_EMBED_MSHUTDOWN(sample);
   PHP_EXT_EMBED_RINIT(sample);
   PHP_EXT_EMBED_RSHUTDOWN(sample);
   

3. add m4 inclusion in your config.m4 file

   m4_include(php-ext-embed/php_ext_embed.m4)
   PHP_EXT_EMBED_INIT(sample)
   rename PHP_NEW_EXTENSION() macro to  PHP_EXT_EMBED_NEW_EXTENSION()
   

Dependency

1. libelf-dev on *Nix (Mac OS X didn't require it)

Note: If you don't have permission to install libelf to the system, you could compile one to your custom directory and try:

./configure --with-libelf=/path/to/your/libelf

Support

Issues

If you encounter any problem, feel free to fill an issue https://github.com/reeze/php-ext-embed/issues.

Operating systems

Tested in these operating systems.

1. RedHat 4+
2. Ubunut 12+
3. Mac OS X 10.9+

Windows is not supported yet.

PHP versions

PHP 5.2, 5.3, 5.4, 5.5, 5.6.

Limitations

1. Lib files are included by the order declared in config.m4
2. lib's will NOT execute at the request startup like HHVM does, it just import your classes and functions