How to continuously check and fix problems that do not comply with the latest PHP code specifications during the code editing process?

How to continuously check and fix problems that do not comply with the latest PHP code specifications during the code editing process?

Introduction:
In the software development process, following consistent code specifications can improve the readability and maintainability of the code. As a commonly used programming language, PHP also has a series of code specifications. However, even experienced developers can accidentally violate these rules. To solve this problem, we can use some tools to automatically check and fix problems that do not comply with PHP code specifications. This article will introduce a commonly used method and provide relevant code examples.

1. Selection of code specification checking tools
In order to continuously check and repair problems that do not comply with the latest PHP code specifications, we can choose to use some specialized code specification checking tools. In PHP, the most commonly used tools are PHP_CodeSniffer and PHP-CS-Fixer. Both tools can automatically detect and fix problems in your code based on specified code specifications.

1. PHP_CodeSniffer:
   PHP_CodeSniffer is a tool for static code analysis, which can check whether PHP code conforms to specified code specifications. It supports a series of commonly used PHP code specifications, such as PSR-1, PSR-2, etc. We can install PHP_CodeSniffer using the following command:

composer global require "squizlabs/php_codesniffer=^3.5"

2. PHP-CS-Fixer:
   PHP-CS-Fixer is a tool for automatically fixing PHP code style, it can Specify code specifications to automatically fix problems in the code. It supports a series of commonly used PHP code specifications, such as PSR-1, PSR-2, etc. We can use the following command to install PHP-CS-Fixer:

composer global require "friendsofphp/php-cs-fixer"

2. The practice of continuously checking and repairing code specification issues
Below, we will introduce how to continuously check and fix code specification issues during the code editing process Fix issues that do not comply with the latest PHP code specifications.

1. Use PHP_CodeSniffer for code specification checking:
   First, we can use PHP_CodeSniffer to check whether the code complies with the specified code specification. Assuming that we want to use the PSR-2 code specification, we can execute the following command:

phpcs --standard=PSR2 path/to/your/code

This command will scan all PHP files under the specified path and output problems that do not comply with the specification.

2. Use PHP-CS-Fixer to fix code specifications:
   Next, we can use PHP-CS-Fixer to fix problems that do not meet the specifications in the code. Assuming that we want to use the PSR-2 code specification, we can execute the following command:

php-cs-fixer fix path/to/your/code --rules=@PSR2

This command will scan all PHP files under the specified path and automatically repair problems that do not comply with the specification.

3. Integrated into the code editor:
   In order to make code specification checking and repair more convenient, we can integrate the above commands into the code editor. For example, in the Visual Studio Code editor, we can use the following plug-in to achieve this:

• PHP_CodeSniffer plug-in: https://marketplace.visualstudio.com/items?itemName=ikappas.phpcs
• PHP-CS-Fixer plug-in: https://marketplace.visualstudio.com/items?itemName=eclecticgeek.phpcs

By installing these two plug-ins, we can Detect and fix code specification issues in real time during editing.

Conclusion:
In the software development process, following consistent code specifications can improve the readability and maintainability of the code. In order to continuously check and fix problems that do not comply with the latest PHP code specifications, we can choose to use the two tools PHP_CodeSniffer and PHP-CS-Fixer. Through proper configuration and integration into the code editor, we can continuously check and fix code specification issues during the code editing process, improving development efficiency and code quality.

Note: Here are some examples of PHP code specifications:

1. Using namespaces:

namespace MyNamespace;

2. Using member variables of classes:

class MyClass
{
    private $myVariable;
}

3. Use type annotations for function parameters and return values:

function myFunction(int $param1, string $param2): bool
{
    // 函数体
    return true;
}

4. Use access restrictions for class methods and member variables:

class MyClass
{
    private $myVariable;
    
    public function myMethod()
    {
        echo $this->myVariable;
    }
}

5. Naming convention for using constant and variable names:

define('MY_CONSTANT', 123);

$myVariable = 'Hello, world!';

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