How to Implement PHP PSR in Your Laravel Project

Are you looking to improve your Laravel project’s code quality and maintainability? If so, implementing PHP Standard Recommendations (PSRs) can help you achieve that goal. In this blog, we’ll guide you through the process of implementing PHP PSR in your Laravel project.

Why Implement PHP PSR in Your Laravel Project?

Implementing PHP PSR in your Laravel project has many benefits, including:

• Better code quality: PSRs provide guidelines for writing clean, organized, and maintainable code. This leads to better code quality overall.
• Improved maintainability: When developers follow PSRs, it becomes easier to maintain the codebase over time. This is because the code is easier to read, understand, and modify.
• Easier collaboration with other developers: When multiple developers work on the same codebase, adhering to PSRs makes it easier for them to collaborate. This is because the code is organized and structured in a consistent way.

Understanding PHP PSR

Before we dive into the process of implementing PHP PSR in your Laravel project, let’s briefly review the PSRs you should be aware of:

• PSR-1: Basic Coding Standard – Provides guidelines for basic coding standards such as file structure, class names, and method names.
• PSR-2: Coding Style Guide – Provides guidelines for coding style such as indentation, spacing, and commenting.
• PSR-4: Autoloading Standard – Provides guidelines for autoloading classes and files.
• PSR-7: HTTP Message Interface – Provides guidelines for HTTP messages and message streams.
• PSR-11: Container Interface – Provides guidelines for container interoperability.

Implementing PHP PSR in Laravel Project

Now that you understand what PSRs are, let’s go through the steps you can follow to implement PHP PSR in your Laravel project.

Step 1: Installing PHP Codesniffer

The first step is to install PHP Codesniffer, which is a tool that checks your code for PSR compliance. You can install PHP Codesniffer using Composer or globally.

To install PHP Codesniffer using Composer, run the following command in your Laravel project directory:

composer require --dev squizlabs/php_codesniffer

To install PHP Codesniffer globally, run the following command:

composer global require "squizlabs/php_codesniffer=*"

Step 2: Configuring PHP Codesniffer for Laravel

Once you’ve installed PHP Codesniffer, you need to configure it to work with Laravel. You can do this by installing Laravel Coding Standards for PHP Codesniffer.

To install Laravel Coding Standards for PHP Codesniffer, run the following command:

composer require --dev "squizlabs/php_codesniffer=*"
./vendor/bin/phpcs --config-set installed_paths vendor/laravel-shift/phpcs-laravel

Step 3: Running PHP Codesniffer

With PHP Codesniffer installed and configured, you can now run it on your Laravel project’s codebase. You can do this using the command line or your IDE.

To run PHP Codesniffer from the command line, run the following command in your Laravel project directory:

./vendor/bin/phpcs

To run PHP Codesniffer from your IDE, you’ll need to configure it to use PHP Codesniffer. Consult your IDE’s documentation for instructions on how to do this.

Step 4: Fixing Code Sniffer Issues

When you run PHP Codesniffer, it will identify any issues in your code that don’t comply with PSR standards. You’ll need to fix these issues manually.

Alternatively, you can use a tool like PHP CS Fixer to automatically fix the issues for you. We’ll discuss how to use PHP CS Fixer later in Alternatively, you can use a tool like PHP CS Fixer to automatically fix the issues for you. We’ll discuss how to use PHP CS Fixer later in this blog.

Step 5: Configuring Laravel to Follow PSR Standards

In addition to using PHP Codesniffer to check your code for PSR compliance, you can also configure Laravel to follow PSR standards. This will ensure that any new code you write in Laravel follows PSR guidelines.

To configure Laravel to follow PSR standards, you’ll need to make changes to your project’s configuration files. Here’s what you need to do:

1. Edit your project’s composer.json file and add the following line to the “autoload” section:

"psr-4": {
    "App\\": "app/"
},

2. Edit your project’s config/app.php file and change the value of the “timezone” parameter to your desired timezone.
3. Edit your project’s config/database.php file and set the default database connection to your desired database.
4. Edit your project’s routes/web.php file and replace the default route with the following:

Route::get('/', function () {
    return view('welcome');
});

These changes will ensure that your Laravel project follows PSR standards.

Step 6: Using PHP CS Fixer

As we mentioned earlier, you can use PHP CS Fixer to automatically fix code sniffer issues for you. PHP CS Fixer is a tool that automatically fixes code style issues in your PHP codebase.

To use PHP CS Fixer, you’ll need to install it using Composer. Run the following command in your Laravel project directory:

composer require --dev friendsofphp/php-cs-fixer

Once you’ve installed PHP CS Fixer, you can run it using the following command:

./vendor/bin/php-cs-fixer fix

This will automatically fix any code style issues in your codebase.

FAQ

Conclusion

Implementing PHP PSR in your Laravel project can lead to better code quality, improved maintainability, and easier collaboration with other developers. By following the steps we’ve outlined in this blog, you can easily implement PHP PSR in your Laravel project. Remember to regularly run PHP Codesniffer and PHP CS Fixer to ensure your code follows PSR guidelines.

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