PHP命名规范
使用PHP写的框架必然有其自身的一定规范,在ThinkPHP中亦然。下面是使用 ThinkPHP 应该尽量遵循的命名规范:
? 类文件都是以.class.php 为后缀(这里是指的 ThinkPHP 内部使用的类库文件,不代表外部加载的类库文件),使用驼峰法命名,并且首字母大写,例如DbMysql.class.php。
? 函数、配置文件等其他类库文件之外的一般是以.php为后缀(第三方引入的不做要求)。
? 确保文件的命名和调用大小写一致,是由于在类Unix系统上面,对大小写是敏感的(而ThinkPHP在调试模式下面,即使在 Windows 平台也会严格检查大小写)。
? 类名和文件名一致(包括上面说的大小写一致),例如UserAction类的文件命名是 UserAction.class.php, InfoModel类的文件名是 InfoModel.class.php,
? 函数的命名使用小写字母和下划线的方式,例如get_client_ip
? Action控制器类以 Action为后缀,例如 UserAction、 InfoAction
? 模型类以Model 为后缀,例如UserModel 、 InfoModel
? 方法的命名使用驼峰法,并且首字母小写,例如getUserName
? 属性的命名使用驼峰法,并且首字母小写,例如tableName
? 以双下划线“__ ”打头的函数或方法作为魔法方法,例如__call和__autoload
? 常量以大写字母和下划线命名,例如HAS_ONE和MANY_TO_MANY
? 配置参数以大写字母和下划线命名,例如HTML_CACHE_ON
? 语言变量以大写字母和下划线命名,例如MY_LANG,以下划线打头的语言变量通常用于系统语言变量,例如_CLASS_NOT_EXIST_。
? 数据表和字段采用小写加下划线方式命名,例如think_user和user_name
特例:
在ThinkPHP里面,有一个函数命名的特例,就是单字母大写函数,这类函数通常是某些操作的快捷定义,或者有特殊的作用。例如,ADSL 方法等等,他们有着特殊的含义,后面会有所了解。
另外一点,ThinkPHP默认使用 UTF-8编码,所以请确保你的程序文件采用 UTF-8 编码格式保存,并且去掉 BOM 信息头(去掉 BOM 头信息有很多方式,不同的编辑器都有设置方法,也可以用工具进行统一检测和处理)。

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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