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How to check code convention and quality using PHP and PHPUnit
How to check code convention and quality using PHP and PHPUnit
Jun 25, 2023 pm 04:57 PM
In modern software development, code quality and specifications are extremely important factors. Not only can it make the code cleaner and easier to maintain, it can also improve the readability and scalability of the code. But how do you check the quality and specification of your code? This article will explain how to use PHP and PHPUnit to achieve this goal.
Step 1: Check the code specification
In PHP development, there is a very popular code specification, which is called PSR (PHP Standard Specification). The purpose of the PSR specification is to make PHP code more readable and maintainable. The most well-known of them are PSR-1 and PSR-2.
When using PHP and PHPUnit to check code specifications, we need to install a tool called "PHP_CodeSniffer". It is a PHP code specification checker that can check whether the code complies with PSR specifications.
Using PHP_CodeSniffer is very simple. We can install it as a global command (installed through Composer) and then use the following command in the terminal to check the code specification:
phpcs --standard=PSR2 path/to/code
where "path/to/code" should be replaced with the code directory you want to check or file path. After executing this command, the number of lines that violated the specification and the details of the error will be output. You can modify the code based on the output to comply with the PSR specification.
In addition to the PSR specification, PHP_CodeSniffer also supports other specifications, such as Zend, PEAR, Squiz, etc. You can specify the specification to use on the command line using the --standard option.
Step 2: Check code quality
In terms of code specifications, we have used PHP_CodeSniffer for inspection. However, this tool cannot check the quality of the code. In order to check the code quality, we need to use another tool called "PHPMD".
PHPMD is a static code analyzer that can check whether the code meets some common code quality issues. It supports checking for poor design, overly complex code, unused code, and more.
Like PHP_CodeSniffer, we can also use Composer to install PHPMD globally, and then use command line tools to check code quality. The following command can check the code quality issues in the code:
phpmd path/to/code text cleancode,codesize,controversial,design,naming,unusedcode
This command will check all PHP files in the code directory "path/to/code". The parameter "text" specifies the format of the results to be output. PHPMD supports multiple result formats, such as HTML, XML, JSON, etc. The last parameters "cleancode,codesize,controversial,design,naming,unusedcode" specify the rule set to be used. They cover many common code quality issues.
After executing this command, the files that violate quality rules, the number of lines, and the type of rule that is violated will be output. You can fix the code based on the results to achieve higher code quality.
Step Three: Integrated Check
If you want to automate this process, you can integrate PHP_CodeSniffer and PHPMD into the build process. Both PHP_CodeSniffer and PHPMD are inspected using command line tools, so we can run them as part of the build script.
For example, if you use PHPUnit as the test framework, you can add the following code in the phpunit.xml configuration file:
<target name="phpcs">
<exec executable="phpcs">
<arg value="--standard=PSR2"/>
<arg value="./path/to/code"/>
</exec>
</target>
<target name="phpmd">
<exec executable="phpmd">
<arg value="./path/to/code"/>
<arg value="text"/>
<arg value="cleancode,codesize,controversial,design,naming,unusedcode"/>
</exec>
</target>
<target name="build" depends="phpcs,phpmd">
<echo message="Build success!"/>
</target>In this example, we define two build targets: phpcs and phpmd. These targets will perform code inspection of PHP_CodeSniffer and PHPMD respectively. At the end of the build, we will output a message indicating that the build was successful.
This example is simple, but you can extend it into a more complex build process. For example, you can prevent the build process from continuing if code quality and specification checks fail.
Conclusion
In this article, we introduced how to use PHP and PHPUnit to check code specification and quality. These tools can greatly improve the quality and maintainability of your code. They are very easy to use and you can integrate them into your build process to automate checks. Whether you are writing a small application or a large project, code quality and specification should be one of your priorities.
The above is the detailed content of How to check code convention and quality using PHP and PHPUnit. For more information, please follow other related articles on the PHP Chinese website!
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