### Install PHPCompatibilityWP with Composer

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

Install PHPCompatibilityWP and its dependencies using Composer. Ensure the PHPCS plugin is allowed.

```bash
composer config allow-plugins.dealerdirect/phpcodesniffer-composer-installer true
composer require --dev phpcompatibility/phpcompatibility-wp:"^3.0@dev"
```

--------------------------------

### Verify PHP_CodeSniffer Standards Installation

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

After installation, verify that the PHPCompatibility standards are registered with PHP_CodeSniffer.

```bash
vendor/bin/phpcs -i
```

--------------------------------

### Run Basic PHPCompatibilityWP Check

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

Perform a compatibility check on your project's code using the PHPCompatibilityWP standard.

```bash
vendor/bin/phpcs -p . --standard=PHPCompatibilityWP
```

--------------------------------

### Run PHPCompatibilityWP Check for Specific PHP Version

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

Inspect your code for compatibility with a specific PHP version range. Replace '7.2-' with your target version.

```bash
vendor/bin/phpcs -p . --standard=PHPCompatibilityWP --runtime-set testVersion 5.6-
```

--------------------------------

### Run PHPCompatibilityWP Check for PHP Files Only

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

Optimize the analysis by instructing PHP_CodeSniffer to only check PHP files, improving performance.

```bash
vendor/bin/phpcs -p . --standard=PHPCompatibilityWP --extensions=php --runtime-set testVersion 5.6-
```

--------------------------------

### Upgrade PHPCompatibilityWP with Composer

Source: https://github.com/phpcompatibility/phpcompatibilitywp/blob/master/README.md

Upgrade the PHPCompatibilityWP package and its dependencies to the latest versions.

```bash
composer update --dev phpcompatibility/phpcompatibility-wp --with-dependencies
```

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