Update squizlabs/php_codesniffer requirement from ^2.0 || ^3.0 to ^2.0 || ^3.0 || ^4.0

[dependabot]

Updates the requirements on squizlabs/php_codesniffer to permit the latest version.

Release notes

Sourced from squizlabs/php_codesniffer's releases.

4.0.1 - 2025-11-10

This release includes all improvements and bugfixes from PHP_CodeSniffer 3.13.5.

Added

• Runtime support for PHP 8.5. All known PHP 8.5 deprecation notices have been fixed.
  • Syntax support for new PHP 8.5 features will follow in a future release.
  • If you find any PHP 8.5 deprecation notices which were missed, please report them.

Changed

• The Squiz.ControlStructures.SwitchDeclaration sniff will now flag a PHP close tag as a "wrong opener" and will auto-fix this by inserting a colon. #1316
• Various housekeeping, including improvements to the tests and documentation.

Fixed

• 4.x regression #1277: bring back whitespace tolerance in phpcs:ignore comma-separated rule reference lists.
  • Note: this bug did not affect phpcs:disable/phpcs:enable ignore annotations.
• Fixed bug #968: Generic.WhiteSpace.ScopeIndent was reporting false positives - and making incorrect fixes - for lines following a line containing an arrow function.
  • Thanks to Soichi Sato for the patch.
• Fixed bug #1216: Tokenizer/PHP: added more defensive coding to prevent PHP 8.5 "Using null as an array offset" deprecation notices.
  • Thanks to Andrew Lyons for the patch.
• Fixed bug #1279: Tokenizer/PHP: on PHP < 8.0, an unclosed attribute (parse error) could end up removing some tokens from the token stream.
  • This could lead to false positives and false negative from sniffs, but could also lead to incorrect fixes being made mangling the file under scan.
• Fixed bug #1315: Squiz.ControlStructures.SwitchDeclaration: a number of the fixers would get into fixer conflicts with each other if the code under scan contained multiple statements on a line within a switch.
  • The sniff will now forbid - and auto-fix - multiple statements on one line for case/default and "case breaking" statements.
• Fixed bug #1316: Tokenizer/PHP: a PHP close tag after a switch case condition or after a default keyword, was not regarded as a "scope_opener" for the case/default body.
• Fixed bug #1316: PSR2.ControlStructures.SwitchDeclaration: the WrongOpener error is now also auto-fixable if the wrong opener is a PHP close tag.
• Fixed bug #1316: Squiz.PHP.NonExecutableCode would throw false positives when code within a switch control structure would move in and out of PHP.

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New Contributors

The PHP_CodeSniffer project is happy to welcome the following new contributors: @​andrewnicols, @​Soh1121

Statistics

Closed: 2 issues Merged: 8 pull requests

Follow @​phpcs on Mastodon or @​PHP_CodeSniffer on X to stay informed.

Please consider funding the PHP_CodeSniffer project. If you already do so: thank you!

Changelog

Sourced from squizlabs/php_codesniffer's changelog.

[4.0.1] - 2025-11-10

This release includes all improvements and bugfixes from PHP_CodeSniffer 3.13.5.

Added

• Runtime support for PHP 8.5. All known PHP 8.5 deprecation notices have been fixed.
  • Syntax support for new PHP 8.5 features will follow in a future release.
  • If you find any PHP 8.5 deprecation notices which were missed, please report them.

Changed

• The Squiz.ControlStructures.SwitchDeclaration sniff will now flag a PHP close tag as a "wrong opener" and will auto-fix this by inserting a colon. #1316
• Various housekeeping, including improvements to the tests and documentation.

Fixed

• 4.x regression #1277: bring back whitespace tolerance in phpcs:ignore comma-separated rule reference lists.
  • Note: this bug did not affect phpcs:disable/phpcs:enable ignore annotations.
• Fixed bug #968: Generic.WhiteSpace.ScopeIndent was reporting false positives - and making incorrect fixes - for lines following a line containing an arrow function.
  • Thanks to [Soichi Sato][@​Soh1121] for the patch.
• Fixed bug #1216: Tokenizer/PHP: added more defensive coding to prevent PHP 8.5 "Using null as an array offset" deprecation notices.
  • Thanks to [Andrew Lyons][@​andrewnicols] for the patch.
• Fixed bug #1279: Tokenizer/PHP: on PHP < 8.0, an unclosed attribute (parse error) could end up removing some tokens from the token stream.
  • This could lead to false positives and false negative from sniffs, but could also lead to incorrect fixes being made mangling the file under scan.
• Fixed bug #1315: Squiz.ControlStructures.SwitchDeclaration: a number of the fixers would get into fixer conflicts with each other if the code under scan contained multiple statements on a line within a switch.
  • The sniff will now forbid - and auto-fix - multiple statements on one line for case/default and "case breaking" statements.
• Fixed bug #1316: Tokenizer/PHP: a PHP close tag after a switch case condition or after a default keyword, was not regarded as a "scope_opener" for the case/default body.
• Fixed bug #1316: PSR2.ControlStructures.SwitchDeclaration: the WrongOpener error is now also auto-fixable if the wrong opener is a PHP close tag.
• Fixed bug #1316: Squiz.PHP.NonExecutableCode would throw false positives when code within a switch control structure would move in and out of PHP.

#968: PHPCSStandards/PHP_CodeSniffer#968 #1216: PHPCSStandards/PHP_CodeSniffer#1216 #1277: PHPCSStandards/PHP_CodeSniffer#1277 #1279: PHPCSStandards/PHP_CodeSniffer#1279 #1315: PHPCSStandards/PHP_CodeSniffer#1315 #1316: PHPCSStandards/PHP_CodeSniffer#1316

[4.0.0] - 2025-09-16

This release contains breaking changes.

Upgrade guides for both [ruleset maintainers/end-users][wiki-upgrade-4.0-end-users], as well as for [sniff developers and integrators][wiki-upgrade-4.0-extenders], have been published to the Wiki.

You are strongly encouraged to read the upgrade guide applicable to your situation before upgrading.

This release includes all improvements and bugfixes from PHP_CodeSniffer [4.0.0-beta1], [4.0.0-RC1], [3.13.3] and [3.13.4].

Changed

• Tokenizer/PHP: fully qualified exit/die/true/false/null will be tokenized as the keyword token and the token 'content' will include the leading backslash. #1201

... (truncated)

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Greptile Summary

This dependabot PR widens the version constraint for squizlabs/php_codesniffer (a dev-only dependency used for code style checking) to also allow the ^4.0 major release. The change is purely additive — existing 2.x and 3.x versions remain permitted — and has no impact on production code or runtime behavior.

Confidence Score: 5/5

Safe to merge — single-line change to a dev-only dependency constraint with no runtime impact.

The change only widens a require-dev version constraint; it introduces no production code changes, no logic alterations, and no security surface. PHP_CodeSniffer 4.x does contain breaking changes for sniff configuration, but since the constraint is additive the installed version is governed by composer.lock and will only change on an explicit composer update.

No files require special attention.

Important Files Changed

Filename	Overview
composer.json	Widens the squizlabs/php_codesniffer dev-dependency constraint from `^2.0

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[composer.json updated] --> B{Composer resolves\nphp_codesniffer}
    B --> C[^2.0 allowed]
    B --> D[^3.0 allowed]
    B --> E[^4.0 now allowed]
    C --> F[Dev/CI environment only]
    D --> F
    E --> F
    F --> G[Code style checks run\nNo production impact]

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