Share learning resources and tools related to PHP code specifications

PHP code specifications are important guiding principles for maintaining code readability and maintainability. A good code specification can improve teamwork efficiency, reduce maintenance costs, and help improve code quality. In this article, I will share some learning resources and tools to help you understand and apply PHP coding standards.

1. PHP-FIG specification organization:

PHP-FIG (PHP Framework Interoperability Group) is an organization dedicated to promoting PHP standardization. They have developed a series of standards covering the scope of PSR (PHP Standard Recommendations). Among them, PSR-1 and PSR-2 are the cornerstones of PHP code specifications.

• PSR-1: Basic coding standards, including file naming, class naming, constant naming, etc. Details can be found at https://www.php-fig.org/psr/psr-1/.
• PSR-2: Code style specifications, including indentation, spaces, line breaks, etc. Details can be found at https://www.php-fig.org/psr/psr-2/.

2. PHP_CodeSniffer:

PHP_CodeSniffer is a powerful static code analysis tool that can automatically detect and correct code specification issues. It supports multiple code specifications, including PSR-1 and PSR-2. You can install and use it by running the following command in the command line:

composer global require "squizlabs/php_codesniffer=*" 

Then, you can use the following command to check code specification issues:

phpcs /path/to/your/code

and use the following command to correct the specification Question:

phpcbf /path/to/your/code

3. PHPStorm IDE:

PHPStorm is a popular PHP integrated development environment with powerful built-in code editing and analysis capabilities. It automatically detects code compliance issues and provides quick fix recommendations. In PHPStorm, you can configure code specifications in "Settings -> Editor -> Code Style -> PHP" and use "Code -> Reformat Code" to correct specification issues.

4. PHP-CS-Fixer:

PHP-CS-Fixer is another popular code specification checking and fixing tool. It can automatically correct code specification issues based on configuration files. You can install and use it with the following command:

composer global require friendsofphp/php-cs-fixer 

Then, you can use the following command to check code specification issues:

php-cs-fixer fix /path/to/your/code

You can define your code specification in the configuration file, And apply it to the code through the following command:

php-cs-fixer fix /path/to/your/code --config=my_config_file.php_cs 

Through the learning resources and tools provided above, you can better learn and apply PHP code specifications. Here is some sample code showing how to follow the PSR-1 and PSR-2 specifications:

<?php

namespace MyNamespace;

use OtherNamespaceSomeClass;

class MyClass
{
    const MY_CONSTANT = 'some value';

    private $myProperty;

    public function __construct()
    {
        $this->myProperty = 'default';
    }

    public function myMethod($param1, &$param2)
    {
        if ($param1 === 'some value') {
            $param2 = strtoupper($param2);
            return true;
        } else {
            return false;
        }
    }
}

By using these specifications and tools, you can write high-quality PHP code that is easy to read and easy to maintain. Remember that code discipline should not be limited to formatting and naming rules, but should also include consistent project structure and use of design patterns. Hopefully these resources and examples will help you better understand and apply PHP coding conventions.

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