更多关于PHP的技术文章http://www.codefrom.com/
php的扩展是用c语言编写,Zend是语言引擎,PHP内核。在实际编写php扩展的时候,需要使用大量的Zend Api,虽然运行效率高,但是其实难度也比较大。见:http://php.net/manual/zh/internals2.ze1.zendapi.php
Zephir提供了一种类似php的高级语言语法的方式,来自动生成扩展的c语言代码,使编写php扩展变得非常的简单。
官网:http://www.zephir-lang.com/
官方的安装教程:http://www.zephir-lang.com/welcome.html
ubuntu下需要安装相关的依赖
$ sudo apt-get update$ sudo apt-get install git gcc make re2c php5 php5-json php5-dev libpcre3-dev
当然别的平台根据实际提示,安装对应的程序即可
$ git clone https://github.com/phalcon/zephir$ cd zephir$ ./install-json$ ./install -c
测试安装是否成功
$ zephir help
使用示例如下:
$ zephir init utils
会在当前目录下生成
ext/ utils/ config.json
然后编辑utils子目录下的greeting.zep 内容如下:
namespace Utils; class Greeting { public static function say() { var a = "hello world"; echo strtoupper(a); } }
这里的namespace是必须添加的,输出大写的"hello,world"。可以直接使用php的内置函数。
然后运行
$ zephir build
然后就会在扩展目录下生成utils.so,修改php.ini添加添加该扩展。调用方法:
<?phpecho Utils\Greeting::say(), "\n";
扩展阅读:
zephir生成的c语言文件默认在/ext/utils/greeting.zep.c,核心内容如下:
PHP_METHOD(Utils_Greeting, say) { zval *a, *_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();}
可以发现zephir一方面直接zend api 如:zend_print_zval。另一方面封装了zend api,如:zephir_fast_strtoupper 。直接修改该文件的c代码,使用原php扩展的编辑方法也是可以滴。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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