外贸站不想让中国大陆访问,想用JavaScript检测浏览器语言是中文的都屏蔽了,但会误伤到很多海外华侨,而且从统计来看网站海外华侨占比还很多,用后端PHP判断是否为大陆查找了半天也没头绪,这个应如何解决?前后端都行
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外贸站不想让中国大陆访问,想用JavaScript检测浏览器语言是中文的都屏蔽了,但会误伤到很多海外华侨,而且从统计来看网站海外华侨占比还很多,用后端PHP判断是否为大陆查找了半天也没头绪,这个应如何解决?前后端都行
单纯想屏蔽IP的话,需要找到中国大陆的IP。而亚太地区的IP是由APNIC负责的,你可以下载:http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest
然后根据国家代码『CN』找出中国大陆的IP。
具体的可以在shell中执行:
<code>wget http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest grep ipv4 delegated-apnic-latest | grep CN | awk -F'|' '{print $4}' </code>
输出即为中国大陆的IP。
我有翻墙你怎么屏蔽......
PS: 不想让他们看有一点不太现实, 可以不让他们买. 比如ban掉注册邮箱, 手机号, 邮寄地址等等
看访问IP,如果是国内IP就屏蔽

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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