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

{
    "require-dev": {
        "tavy315/php-code-sniffer": "*"
    }
}

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.

#!/bin/sh
./COMPOSER_BIN_DIR/phpcs-pre-commit

Make sure the hook script is executable.

chmod +x .git/hooks/pre-commit

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.

<?xml version="1.0" encoding="UTF-8"?>
<ruleset>
    <rule ref="I2ct" />
</ruleset>

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.

<?xml version="1.0" encoding="UTF-8"?>
<ruleset>
    <rule ref="I2ct" />
    <arg name="bootstrap" value="vendor/autoload.php" />
</ruleset>

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 phpcs.php, phpcbf.php and phpcs-pre-commit.php scripts under scripts directory.

Building Binaries

Run the command below to re-build binaries:

php scripts/build.php

PHP_CodeSniffer Dependency

Current version is built on PHP_CodeSniffer 2.8.1 which is locked in composer.lock file. To import new versions; edit composer.json file if required and run composer update command, then commit the modified composer.lock file. Updating PHP_CodeSniffer version may break some of I2ct sniffs, so you must carefully track any changes on 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.