This time I will bring you PHP Development Specifications Summary, what are the precautions of PHP development specifications, the following is a practical case, let’s take a look.
Basic convention
Source file
The code starts with
The file format must be BOM-free UTF- 8 Format
A file only declares one type. For example, class and interface cannot be mixed in one source file.
Indentation
Use 4 spaces for indentation. IDE can set
Line length
120 characters per line
Keywords
All keywords are lowercase, such as true, false
Naming
The class name is in big camel case, such as UserModel
The class method is named in small camel case, such as getUserId()
The function uses a combination of lowercase letters plus _ , such as get_cookie()
Variable nameUse small camel case method, such as $userId
Constant definition is a combination of uppercase letters plus _, such as IS_DEBUG
Code comment tag
Comment classes, methods, and properties in class files, use @param @return @throwns
@param comments to write detailed explanations, such as @param string $username Username
Business module
The route is composed of lowercase letters plus _, such as /api/get_user_info
The View layer is responsible for data display
Controller The layer is responsible for input parameter verification, the outermost layer catches exceptions, calls the Logic and View layers
The Logic layer is responsible for specific business logic, calls the Model layer, and returns the processing data
The Model layer is responsible for the data table Query and association
Exception classes need to distinguish functions, such as ParamException means parameter error, UserException means custom exception
Exceptions need to be classified and defined code, use PHP class constants instead, such as
<?php namespace app\exceptions\codes; class UserExceptionCode extends BaseExceptionCode { const NO_AUTH = 1000001; const NO_AUTH_MSG = '不具有权限'; const STATUS_EXCEPTION = 1000002; const STATUS_EXCEPTION_MSG = '状态异常'; }
If the data table file has an Enum type, use PHP class constants instead, such as
<?php namespace app\enums; class UserEnum extends BaseEnum { const STATUS_DELETED = -1;// 已删除 const STATUS_DISABLE = 0;// 禁用 const STATUS_ENABLE = 1;// 正常 const AUTH_GUEST = 1;// 匿名用户 const AUTH_GENERAL_ADMIN = 2;// 普通管理员 const AUTH_SUPER_ADMIN = 3;// 超级管理员 }
where STATUS and AUTH are the data table mapping field names
Api interface output, example
{ "code" : 0, "msg" : "success", "data" : { "userId" : 100 } }
The code and msg are required fields. If data is empty, do not fill it in. Example
{ "code" : 100001, "msg" : "不具有权限" }
Other
arrays, use when the key is String Single quotes, use a single line when there is only one key, example
$arr = [ 'userId' => 100 ];
Use multiple lines when there are multiple keys, example
$arr = [ 'id' => 100, 'username' => 'admin', ];
Use single quotes for strings'
I believe you have read this article You have mastered the case method. For more exciting information, please pay attention to other related articles on the PHP Chinese website!
Recommended reading:
Summary of PHP source code encryption method
How to implement PHP to delete folders under fixed paths and document
The above is the detailed content of Summary of PHP development specifications. For more information, please follow other related articles on the PHP Chinese website!

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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