zephir

## zephir简介

zephir是一门可以编写和编译php拓展的脚本语言，它是动态/静态类型的语言，很多的特性跟php非常的相似

## 依赖

* gcc >= 4.x/clang >= 3.x

* re2c 0.13+

* gnu make 3.81+

* autoconf 2.31+

* automake 1.14+

* libpcre3

* php development headers and tools

```

$ sudo apt-get update

$ sudo apt-get install git gcc make re2c php5 php5-json php5-dev libpcre3-dev

```

## zephir　安装

```

$ git clone https://github.com/phalcon/zephir.git

$ cd zephir

$ bash install -c

$ zephir help

Zephir version 0.9.6a-dev-aef205594b

```

> `bash install -c`　会把zephir/bin/zephir　拷贝到/usr/local/bin目录下

## php 拓展之hello world

```

$ cd /web/

$ mkdir zephir_test

$ zephir init hw

```

> 会发现hw 目录下面会有 ext/  hw/ config.json

在hw子目录下编写helloworld.zep文件

```

namespace Hw;

class HelloWorld

{

public static function say()

{

var a = "hello world";

echo strtoupper(a);

}

}

```

`$ zephir build`

> 会发现ext/目录下已经生成了php拓展的c语言代码

```

$ cd ext

$ bash install

$ /web/zephir_test/hw/ext$ bash install

Configuring for:

PHP Api Version:        20131106

Zend Module Api No:      20131226

Zend Extension Api No:  220131226

Configuring for:

PHP Api Version:        20131106

Zend Module Api No:      20131226

Zend Extension Api No:  220131226

```

> 生成hw.so文件，　最后再加入php.ini

```

extenstion=hw.so

```

## 运行helloworld拓展

```

$ php -r "Hw\HelloWorld::say();"

HELLO WORLD

```

## zephir 生成的C语言代码在ext/hw/helloworld.zep.c

```

PHP_METHOD(Hw_HelloWorld, say) {

zval *a = NULL, *_0;

ZEPHIR_MM_GROW();

ZEPHIR_INIT_VAR(a);

ZVAL_STRING(a, "hello world", 1);

ZEPHIR_INIT_VAR(_0);

zephir_fast_strtoupper(_0, a);

zend_print_zval(_0, 0);

ZEPHIR_MM_RESTORE();

}

```