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PHP Code Sniffer

PHP Code Sniffer is a PHP code standard checker/beautifier/fixer tool based on PHP_CodeSniffer and includes custom sniffs used in PHP projects developed by I2ct.

Requirements

PHP Code Sniffer requires PHP 5.6 or later.

Install via Composer

Binaries

Binaries are located in bin directory but composer installer creates links under your vendor binary directory depending on your composer configuration.

• phpcs : Checks PHP files against defined coding standard rules.
• phpcbf : Corrects fixable coding standard violations.
• phpcs-pre-commit : Runs phpcs for modified files in git repository.

Pre-Commit Hook

Save the following script as .git/hooks/pre-commit by replacing COMPOSER_BIN_DIR as your vendor binary directory name depending on your composer configuration.

Make sure the hook script is executable.

Customize

You can customize configuration by adding a file called phpcs.xml file into the root directory of your project. The phpcs.xml file has exactly the same format as a normal ruleset.xml file, so all the same options are available in it. You need to define I2ct rule to import all the I2ct rules.

Using a custom bootstrap file

You can add custom bootstrap files to be included before beginning the run. Some sniffs need to load classes from your project; so adding a autoload file will allow sniffs to do this.

Imported Standards

PSR2

All PSR2 sniffs except Squiz.WhiteSpace.ControlStructureSpacing are imported by default.

• PSR2.ControlStructures.ElseIfDeclaration.NotAllowed rule type is considered as error instead of warning.

Generic

Imported sniffs:

• All sniffs in Generic.Formatting category except:
  • DisallowMultipleStatements (replaced by I2ct.Formatting.DisallowMultipleStatements)
  • NoSpaceAfterCast
  • SpaceAfterNot
• Generic.Arrays.DisallowLongArraySyntax

Squiz

Imported sniffs:

• Squiz.Commenting.DocCommentAlignment
• Squiz.Commenting.InlineComment
  • InvalidEndChar rule type is considered as warning instead of error.
• Squiz.WhiteSpace.SuperfluousWhitespace
• Squiz.WhiteSpace.OperatorSpacing

Custom Sniffs

I2ct.Arrays.ArrayDeclaration

• Extended from Squiz.Arrays.ArrayDeclaration.
• Arranged array element indents by start position of the first (declaration) line.
• Number of spaces before array elements is increased from 1 to 4.
• Removed rules:
  • NoKeySpecified
  • KeySpecified
  • MultiLineNotAllowed
  • NoCommaAfterLast
  • NoComma

I2ct.Commenting.DocComment

• Extended from Generic.Commenting.DocComment.
• Ignored MissingShort rule for PHPUnit test class methods ^[1].
• Changed MissingShort rule type from error to warning.
• Removed rules for comments with long descriptions:
  • SpacingBetween
  • LongNotCapital
  • SpacingBeforeTags
  • ParamGroup
  • NonParamGroup
  • SpacingAfterTagGroup
  • TagValueIndent
  • ParamNotFirst
  • TagsNotGrouped

I2ct.Commenting.FunctionComment

• Extended from PEAR.Commenting.FunctionComment.
• Added PHPUnit test class control for methods without doc comment ^[1].
• Added {@inheritdoc} validation for overrided methods ^[1].
• Removed MissingParamComment, MissingReturn, SpacingAfterParamType and SpacingAfterParamName rules.
• Ignored MissingParamTag rule for PHPUnit test class methods ^[1].

I2ct.Commenting.VariableComment

• Extended from Squiz.Commenting.VariableComment.
• Added bool and int into allowed variable types.

I2ct.Formatting.DisallowMultipleStatements

• Extended from Generic.Formatting.DisallowMultipleStatements.
• Fixed adding 2 blank lines when applying SameLine fixer with Squiz.Functions.MultiLineFunctionDeclaration.ContentAfterBrace fixer together.

I2ct.Strings.ConcatenationSpacing

This sniff has two rules and fixes.

• PaddingFound: There must be only one space between the concatenation operator (.) and the strings being concatenated.
• NotAligned: Multiline string concatenations must be aligned.

I2ct.WhiteSpace.FunctionSpacing

• Extended from Squiz.WhiteSpace.FunctionSpacing.
• Expected no blank lines before the method which is the first defined element of a class.
• Expected no blank lines after the method which is the last defined element of a class.
• Fixed fixing spaces before method definitions.

I2ct.WhiteSpace.MemberVarSpacing

• Extended from Squiz.WhiteSpace.MemberVarSpacing.
• Expected no blank lines before the property which is the first defined element of a class.
• Fixed fixing spaces before property definitions.

Development

Live Testing

You can test any modifications by running phpcbf.php and phpcs-pre-commit.php scripts under scripts directory.

Building Binaries

Run the command below to re-build binaries:

PHP_CodeSniffer Dependency

Current version is built on PHP_CodeSniffer 2.8.1 which is locked in composer.json file if required and run composer update command, then commit the modified PHP_CodeSniffer version may break some of PHP_CodeSniffer before updating.

^[1] A class loader is required (eg. via a bootstrap file), otherwise a warning (Internal.I2ct.NeedClassLoader) will be generated. You can override this rule in phpcs.xml file in your project to prevent warnings. ↩

License Notices

PHP_CodeSniffer is licensed under the BSD 3-Clause license.