PHP_CodeSniffer を使って、コーディング規約に準拠しているかをチェックする

composer global require "squizlabs/php_codesniffer=*"

composer require --dev "squizlabs/php_codesniffer=*"

composer remove squizlabs/php_codesniffer

./vendor/bin/phpcs --version

./vendor/bin/phpcs -h
./vendor/bin/phpcbf -h

phpcs [ファイル名 orディレクトリ名]

phpcs --report=source --standard=PSR2 [ファイル名 orディレクトリ名]

./vendor/bin/phpcs app/Repositories/PlaylistRepository.php

./vendor/bin/phpcs --report=source --standard=PSR2 app/Repositories/PlaylistRepository.php
./vendor/bin/phpcbf --report=summary --standard=/MyStandard/phpcs.xml app/Repositories/PlaylistRepository.php

root@ddfa20fadae0:/var/www/html/my-laravel-app# ./vendor/bin/phpcs --report=source --standard=PSR2 app/Repositories/PlaylistRepository.php

PHP CODE SNIFFER VIOLATION SOURCE SUMMARY
------------------------------------------------------------------------
STANDARD  CATEGORY            SNIFF                                COUNT
------------------------------------------------------------------------
Squiz     Classes             Valid class name not camel caps      1
------------------------------------------------------------------------
A TOTAL OF 1 SNIFF VIOLATION WERE FOUND IN 1 SOURCE
------------------------------------------------------------------------

Time: 1.26 secs; Memory: 8MB

./vendor/bin/phpcs --report=source --standard=PSR2  app/Repositories/PlaylistRepository.php

./vendor/bin/phpcs -i

//=> The installed coding standards are MySource, PEAR, PSR1, PSR12, PSR2, Squiz and Zend

./vendor/bin/phpcbf --report=summary --standard=phpcs.xml app/Repositories/PlaylistRepository.php

<?xml version="1.0"?>
<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="PSR2" xsi:noNamespaceSchemaLocation="../../../phpcs.xsd">
    <description>The PSR-2 coding standard.</description>
    <arg name="tab-width" value="4"/>

    <rule ref="PSR2"/>
</ruleset>

            $defaultFiles = [
                '.phpcs.xml',
                'phpcs.xml',
                '.phpcs.xml.dist',
                'phpcs.xml.dist',
            ];