Zephir - 是一种高级编程语言，可简化 PHP 扩展的创建和可维护性。Zephir 扩展导出为 C 代码，可以通过 gcc/clang/vc++ 等主要 C 编译器进行编译和优化。功能暴露给 PHP 语言。
GitHub https://github.com/zephir-lang/zephir
Zephir Parser https://github.com/zephir-lang/php-zephir-parser
Zephir Zephir Documentation
Zephir-Docs Building PHP extensions is easy with Zephir

安装 https://docs.zephir-lang.com/0.12/zh-cn/installation 

sudo yum install gcc make re2c autoconf automake
# 安装解析器
git clone https://github.com/zephir-lang/php-zephir-parser.git
/usr/local/php81/bin/phpize
./configure --with-php-config=/usr/local/php81/bin/php-config
make
sudo make install
sudo vim /usr/local/php81/etc/php.ini
extension=zephir_parser

## 下载 php-8.1.1 源码 并 更新开发库
cd /usr/include/php
# 备份原文件
sudo mkdir .bak
sudo mv * ./.bak/
#引入新文件
sudo ln -s /data/install/php-8.1.1/ext /usr/include/php/
sudo ln -s /data/install/php-8.1.1/include /usr/include/php/
sudo ln -s /data/install/php-8.1.1/main /usr/include/php/
sudo ln -s /data/install/php-8.1.1/sapi /usr/include/php/
sudo ln -s /data/install/php-8.1.1/TSRM /usr/include/php/
sudo ln -s /data/install/php-8.1.1/Zend /usr/include/php/

# 安装 zephir
git clone https://github.com/zephir-lang/zephir.git
composer install
chmod +x zephir
sudo ln -s /data/www/jsx/zephir/zephir /usr/local/bin/
✔> zephir
 _____              __    _
/__  /  ___  ____  / /_  (_)____
  / /  / _ \/ __ \/ __ \/ / ___/
 / /__/  __/ /_/ / / / / / /
/____/\___/ .___/_/ /_/_/_/
         /_/

Zephir 0.15.2 by Andres Gutierrez and Serghei Iakovlev (source)

Usage:
  command [options] [arguments]

Options:
      --dumpversion  Print the version of the compiler and don't do anything else (also works with a single hyphen)
  -h, --help         Print this help message
      --no-ansi      Disable ANSI output
  -v, --verbose      Displays more detail in error messages from exceptions generated by commands (can also disable with -V)
      --vernum       Print the version of the compiler as integer
      --version      Print compiler version information and quit

Available commands:
  api        Generates a HTML API based on the classes exposed in the extension
  build      Generates/Compiles/Installs a Zephir extension
  clean      Cleans any object files created by the extension
  compile    Compile a Zephir extension
  fullclean  Cleans any object files created by the extension (including files generated by phpize)
  generate   Generates C code from the Zephir code without compiling it
  help       Display help for a command
  init       Initializes a Zephir extension
  install    Installs the extension in the extension directory (may require root password)
  stubs      Generates stubs that can be used in a PHP IDE

开发扩展 https://docs.zephir-lang.com/0.12/zh-cn/tutorial

cd /data/www/jsx/
zephir init utils
touch /data/www/jsx/utils/utils/greeting.zep
vim /data/www/jsx/utils/utils/greeting.zep
#----------- 文件内容
namespace Utils;

class Greeting
{

    public static function say()
    {
        echo "hello world!";
    }

}
#----------- 文件内容
cd /data/www/jsx/utils
zephir build
 Zephir version has changed, use "zephir fullclean" to perform a full clean of the project
 Zephir version has changed, use "zephir fullclean" to perform a full clean of the project
 Preparing for PHP compilation...
 Preparing configuration file...
 Compiling...
 Zephir version has changed, use "zephir fullclean" to perform a full clean of the project
 Installing...

 Extension installed.
 Add "extension=utils.so" to your php.ini

 ! [NOTE] Don't forget to restart your web server