Change Log for PHPCSUtils for PHP CodeSniffer

All notable changes to this project will be documented in this file.

This projects adheres to Keep a CHANGELOG and uses Semantic Versioning.

1.1.0 - 2025-06-12

Added

Compatibility with the new PHP_CodeSniffer 4.x branch in anticipation of the PHP_CodeSniffer 4.0 release. #674, #679 PHPCSUtils should now be fully compatible with PHP_CodeSniffer 4.0 (again). If you still find an issue, please report it.

PHPCS BackCompat

• BCFile::findExtendedClassName(): sync with PHPCS 4.0.0 - support for namespace relative names when used as the extended parent class name. #674
• BCFile::findImplementedInterfaceNames(): sync with PHPCS 4.0.0 - support for namespace relative names when used in implemented interface names. #674
• BCFile::getMemberProperties(): sync with PHPCS 3.12.0 - support for PHP 8.4 final properties. Thanks @DanielEScherzer! #646
• BCFile::getMemberProperties(): sync with PHPCS 3.13.1 - support for PHP 8.4 asymmetric visibility. #677
• BCFile::getMemberProperties(): sync with PHPCS 4.0.0. #674
  • Add support for PHP 8.4 properties in interfaces.
  • Removed parse error warning.
• BCFile::getMethodParameters(): sync with PHPCS 3.13.1 - support for PHP 8.4 asymmetric visibility. #677
• BCFile::findStartOfStatement(): sync with PHPCS 3.12.1 - support for goto as a switch - case terminating statement. #661
• BCTokens::nameTokens() as introduced in PHPCS 4.0.0. #674 The same token array previously already existed in PHPCSUtils as Collections::nameTokens().
• BCTokens::functionNameTokens(): sync with PHPCS 4.0.0 - added the T_ANON_CLASS token. #674
• BCTokens::parenthesisOpeners(): sync with PHPCS 4.0.0 - added the T_USE, T_ISSET, T_UNSET, T_EMPTY, T_EVAL and T_EXIT tokens. #674 Note: While T_USE, T_ISSET, T_UNSET, T_EMPTY, T_EVAL and T_EXIT will be included in the return value for this method, the associated parentheses will not have the 'parenthesis_owner' index set unless PHPCS 4.0.0 is used. Use the Parentheses::getOwner() or the Parentheses::hasOwner() methods if you need to check whether any of these tokens are a parentheses owner. The methods in the Parentheses class are PHPCS cross-version compatible.

TestUtils

• New PHPCSUtils\TestUtils\ConfigDouble class as a lightweight and more stable alternative to directly using the PHPCS native Config class in tests. #550, #612 Props to @fredden for helping me find and fix a bug in this feature before it was released.
• New PHPCSUtils\TestUtils\RulesetDouble class which allows for creating a Ruleset object without registering any sniffs. #674 This allows for the PHPCSUtils\TestUtils\UtilityMethodTestCase class to be cross-version compatible with both PHP_CodeSniffer 3.x as well as 4.x.
• New PHPCSUtils\TestUtils\UtilityMethodTestCase::parseFile() method to allow for on-demand tokenizing of a (secondary) test case file. #591, #610 This method is intended for tests which need to use multiple test case files, like, for example, tests which need to verify that a utility resets a $fileName property on seeing another file.
• New PHPCSUtils\TestUtils\UtilityMethodTestCase::testTestMarkersAreUnique() and PHPCSUtils\TestUtils\UtilityMethodTestCase::assertTestMarkersAreUnique() methods which automatically check that code sample files used with this TestCase do not contain duplicate test case markers. #642 If needs be, the test method can be disabled by overloading it (discouraged). If a test uses multiple test case/code sample files, the assertion method can be called directly.

Tokens

• New Collections::constantTypeTokens() method to support PHP 8.3 typed class constants. #562
• New Collections::ternaryOperators() method. #549
• T_EXIT to the Collections::functionCallTokens() and Collections::parameterPassingTokens() in light of the PHP 8.4 “exit as function” change. #618
• The PHP 8.4 asymmetric visibility tokens have been added to the Collections::propertyModifierKeywords() method. #653
• T_INTERFACE has been added to the Collections::ooPropertyScopes() method for PHP 8.4 interface properties support. #674

Utils

• New PHPCSUtils\Utils\Constants class: Utility functions to examine (class) constants. #562 Initially available method: getProperties() to retrieve an array of information about an OO constant declaration.
• New PHPCSUtils\Utils\FileInfo class: Utility functions to check characteristics of the file under scan. #572 Initial set of available methods: hasByteOrderMark() and hasSheBang().
• New PHPCSUtils\Utils\FilePath class: Utility functions for handling and comparing file paths. #593 Initial set of available methods: getName() to retrieve the normalized path for the current file, isStdin(), normalizeAbsolutePath(), normalizeDirectorySeparators(), trailingSlashIt() and startsWith().
• New PHPCSUtils\Utils\TypeString class: Utility functions for analysing typestrings as retrieved via the various available getParameters()/getProperties() methods. #588 Initial set of available methods: getKeywordTypes(), isKeyword(), normalizeCase(), isSingular(), isNullable(), isUnion(), isIntersection(), isDNF(), toArray(), toArrayUnique(), filterKeywordTypes() and filterOOTypes(). Note: The is*() methods will not check if the type string provided is valid, as doing so would inhibit what sniffs can flag. The is*() methods will only look at the form of the type string to determine if it could be valid for a certain type.
• New PHPCSUtils\Utils\ObjectDeclarations::getDeclaredConstants(), PHPCSUtils\Utils\ObjectDeclarations::getDeclaredEnumCases(), PHPCSUtils\Utils\ObjectDeclarations::getDeclaredProperties() and PHPCSUtils\Utils\ObjectDeclarations::getDeclaredMethods() utility methods. #592 These methods will each return an array with the name of the constant/case/property/method as the key and the typical stack pointer needed for further processing. The retrieval of this information is highly optimized for performance. If a sniff needs to search for a named constant/enum case/property/method in an OO structure, in most cases, these methods should be the recommended way for finding the declaration, instead of the sniff attempting to do this itself. Mind: the return value of the getDeclaredProperties() method includes constructor promoted properties. Passing the stack pointer of constructor promoted properties onto a call to the Variables::getMemberProperties() method, however, is currently not supported.
• FunctionDeclarations::getParameters(): support for PHP 8.4 asymmetric visibility. #677
• Variables::getMemberProperties(): support for PHP 8.4 final properties. Thanks @DanielEScherzer! #646
• Variables::getMemberProperties(): support for PHP 8.4 asymmetric visibility. #677

Changed

• The exceptions thrown by PHPCSUtils native utilities have been made more modular and more specific. #598, #599, #600
  • Passing a parameter of the wrong type will now result in a PHPCSUtils\Exceptions\TypeError being thrown.
  • Passing a parameter of the correct type, but with an invalid value, like an empty string when only non-empty strings are expected/accepted, will now result in a PHPCSUtils\Exceptions\ValueError being thrown.
  • Passing a (positive) integer stack pointer, which doesn’t exist in the token stack of the current file, will now result in a PHPCSUtils\Exceptions\OutOfBoundsStackPtr being thrown.
  • Passing a stack pointer to a token which is not within the range of token types which is accepted by the method, will now result in a PHPCSUtils\Exceptions\UnexpectedTokenType being thrown.
  • Logic errors will now result in a PHPCSUtils\Exceptions\LogicException being thrown. This can occur, for instance, when a method takes a $start and $end parameter and the $end pointer is before the $start pointer.
  • Missing, conditionally required, parameters, will now result in a PHPCSUtils\Exceptions\MissingArgumentError being thrown.
  • Generic errors will now result in a PHPCSUtils\Exceptions\RuntimeException being thrown.
  • Previously the PHPCS native PHP_CodeSniffer\Exceptions\RuntimeException was used for all these exceptions. Catching the PHPCS native RuntimeException will still catch the new exceptions, but it is strongly recommended to be more selective when catching exceptions to prevent accidentally hiding errors in sniffs.
  • Also note that the PHPCSUtils native utilities now include more and stricter type checking to help surface bugs in sniffs.

Abstract Sniffs

• The AbstractArrayDeclarationSniff::process() method will no longer hide exceptions about a non-integer or non-existent stack pointer being passed. #600
• The AbstractArrayDeclarationSniff::processArray() method will no longer hide exceptions about non-integer or non-existent stack pointers being passed. #600

PHPCS BackCompat

• BCFile::getDeclarationName(): sync with PHPCS 3.12.0 - prevent incorrect result during live coding for unfinished closures. #644
• BCFile::getDeclarationName(): sync with PHPCS 4.0.0 - no longer accept the T_CLOSURE or T_ANON_CLASS tokens. #674 Passing these will now result in an exception.
• BCFile::getDeclarationName(): sync with PHPCS 4.0.0 - the method will now always return a string. #674 Previously, the method could return null when the name could not be determined. Now it will return an empty string.

TestUtils

• The PHPCSUtils\TestUtils\UtilityMethodTestCase is now officially compatible with PHPUnit 11 and will no longer generate any deprecation notices on PHPUnit 11.

Utils

• Parentheses: all methods will now recognize closer use() as a parentheses owner. #674 Note: PHPCS natively does not recognize closure use as a parentheses owners until PHP_CodeSniffer 4.0.
• All methods in the PassedParameters class will now be able to analyze exit/die when used as a function call. #618
• The Scopes::isOOProperty() method now allows for PHP 8.4 properties in interfaces. #674
  • This also adds support for properties in interfaces to the Variables::getMemberProperties() method.
• The UseStatements::splitAndMergeImportUseStatement() method will no longer hide exceptions about a non-integer, non-existent or non-T_USE stack pointer being passed. #600

Other

• Dropped support for PHP_CodeSniffer < 3.13.0. #629, #653 Please ensure you run composer update phpcsstandards/phpcsutils --with-dependencies to benefit from this.
• Various housekeeping, including making the test suite compatible with PHPUnit 11.

Deprecated

TestUtils

• The (internal) PHPCSUtils\TestUtils\UtilityMethodTestCase::setStaticConfigProperty() method. #550 This method has become redundant with the introduction of the ConfigDouble class.

Removed

PHPCS BackCompat

• The javascript specific T_ZSR_EQUAL token from the BCTokens::assignmentTokens() array, as per PHPCS 4.0.0. #674
• The javascript specific T_OBJECT token from the BCTokens::blockOpeners() array, as per PHPCS 4.0.0. #674
• The javascript specific T_PROPERTY and T_OBJECT tokens from the BCTokens::blockOpeners() array, as per PHPCS 4.0.0. #674

Fixed

Abstract Sniffs

• AbstractArrayDeclarationSniff::getActualArrayKey(): will now handle FQN true/false/null correctly. #668

Utils

• Context::inForeachCondition() could misidentify the as keyword for foreach when the iterable expression contained an array declaration in which the as keyword was being used. #617
• The Numbers::is*() methods could misidentify strings which look like numeric literals with underscores, but are in actual fact invalid as numeric literals, as valid numbers. #619, #620
• UseStatements::getType() will now handle unfinished closure use statements (parse errors) more consistently and return 'closure' for those cases. #667

1.0.12 - 2024-05-20

Added

PHPCS BackCompat

• BCFile::getMemberProperties(): sync with PHPCS 3.10.0 - support for PHP 8.2 DNF types. #604
• BCFile::getMethodProperties(): sync with PHPCS 3.10.0 - support for PHP 8.2 DNF types. #604
• BCFile::getMethodParameters(): sync with PHPCS 3.10.0 - support for PHP 8.2 DNF types. #604

Utils

• FunctionDeclarations::getParameters(): support for PHP 8.2 DNF types. #604
• FunctionDeclarations::getProperties(): support for PHP 8.2 DNF types. #604
• Variables::getMemberProperties(): support for PHP 8.2 DNF types. #604

Changed

Tokens

• Collections::parameterTypeTokens(), Collections::propertyTypeTokens() and Collections::returnTypeTokens(): now include the new T_TYPE_OPEN_PARENTHESIS and T_TYPE_CLOSE_PARENTHESIS tokens for PHP 8.2 DNF type support. #604

Utils

• ControlStructures::getCaughtExceptions(): will now silently ignore parse errors in the code under scan which prevent the method from analyzing a catch statement. #594 The method will now return an empty array instead of throwing a PHP_CodeSniffer\Exceptions\RuntimeException.

Other

• Dropped support for PHP_CodeSniffer < 3.10.0. #603 Please ensure you run composer update phpcsstandards/phpcsutils --with-dependencies to benefit from this.
• Various housekeeping and documentation improvements.

Fixed

Utils

• UseStatements::splitImportUseStatement(): the values in the return array will now never include a leading backslash. #590 Previously the behaviour around import use statements declared with a leading backslash was undefined and the backslash would be included in the return value.

1.0.11 - 2024-04-24

Changed

Other

• Various housekeeping and documentation improvements. Includes a contribution from @fredden.

Fixed

PHPCS BackCompat

• BCFile::getMethodProperties(): small performance improvement & more defensive coding, in line with same fix in PHPCS 3.9.2. #573

Utils

• FunctionDeclarations::getProperties(): small performance improvement & more defensive coding, in line with same fix in PHPCS 3.9.2. #573

1.0.10 - 2024-03-18

Changed

Other

• Dropped support for PHP_CodeSniffer < 3.9.0. #561 Please ensure you run composer update phpcsstandards/phpcsutils --with-dependencies to benefit from this.
• Various housekeeping and documentation improvements.

Deprecated

Utils

• NamingConventions::AZ_UPPER constant. #563
• NamingConventions::AZ_LOWER constant. #563

Fixed

PHPCS BackCompat

• BackCompat\Helper::getEncoding(): PHP 8.4 deprecation notice. #568
• BackCompat\Helper::ignoreAnnotations(): PHP 8.4 deprecation notice. #568

1.0.9 - 2023-12-08

Added

PHPCS BackCompat

• BCFile::getMemberProperties(): sync with PHPCS 3.8.0 - support for PHP 8.2 true type. #524
• BCFile::getMethodProperties(): sync with PHPCS 3.8.0 - support for PHP 8.2 true type. #524
• BCFile::getMethodParameters(): sync with PHPCS 3.8.0 - support for PHP 8.2 true type. #524

Changed

TestUtils

• Significant performance improvement for the UtilityMethodTestCase. #525

Other

• Dropped support for PHP_CodeSniffer < 3.8.0. #523 Please ensure you run composer update phpcsstandards/phpcsutils --with-dependencies to benefit from this.
• Small improvements to the documentation website generation. Includes a contribution from @fredden.
• Various housekeeping and documentation improvements. Includes a contribution from @fredden.

1.0.8 - 2023-07-17

Changed

PHPCS BackCompat

• BCFile::getDeclarationName(): sync with PHPCS 3.8.0 - support for functions called self, parent or static which return by reference. #494

Other

• Various housekeeping and minor documentation improvements.

Fixed

Fixers

• The SpacesFixer will no longer throw an (incorrect) exception when the second pointer passed is a comment token and this comment token is the last content in a file. #493

1.0.7 - 2023-07-10

Changed

Other

• Various housekeeping and maintenance updates, including making the test suite compatible with PHPUnit 10.

Fixed

Utils

• The Arrays::getDoubleArrowPtr() method could previously get confused over a double arrow in a keyed list used as an array value. #485

1.0.6 - 2023-05-27

Changed

PHPCS BackCompat

• BCFile::getClassProperties(): sync with PHPCS 3.8.0 - support for PHP 8.2 readonly classes. #470
• BCFile::getMethodParameters(): sync with PHPCS 3.8.0 - support for constructor property promotion with readonly properties without explicit visibility. #472

Utils

• The results of the following methods will now (also) be cached for improved performance when multiple sniffs call these functions for the same token during a PHPCS run. #464, #466
  • FunctionDeclarations::getProperties()
  • Variables::getMemberProperties()
• Additionally, the results of the UseStatements::splitImportUseStatement() method will be cached more often and the cache checked earlier. #467
• The return value of the ControlStructures::getCaughtExceptions() method will no longer contain “empty” entries for catch statements without a named exception. It will return an empty array instead. #474

Other

• Various small housekeeping and maintenance updates.

Fixed

Abstract Sniffs

• AbstractArrayDeclarationSniff: fixed a potential “Trying to access array offset on value of type bool” PHP notice. #476
• AbstractArrayDeclarationSniff: the abstract will no longer trigger potentially available magic __get()/__set() etc methods. #477

1.0.5 - 2023-04-17

Fixed

Utils

• The Lists::getAssignments() method could previously get confused over exotic list keys. Fixed now. #459

1.0.4 - 2023-04-15

Changed

Other

• Minor documentation improvements.

Fixed

Utils

• The FunctionDeclarations::getParameters() method will now correctly handle constructor promoted properties with readonly, but without explicit visibility set. #456

1.0.3 - 2023-04-13

Changed

Other

• Various small housekeeping and maintenance updates.

Fixed

Utils

• The PassedParameters class now allows for function calls to global functions called self(), parent() or static(). #452

1.0.2 - 2023-03-28

Changed

Tokens

• The Collections::arrayOpenTokensBC(), Collections::arrayTokensBC(), Collections::listOpenTokensBC(), Collections::listTokensBC(), Collections::shortArrayListOpenTokensBC(), Collections::shortArrayTokensBC() and Collections::shortListTokensBC() token arrays will no longer contain the T_OPEN_SQUARE_BRACKET and/or the T_CLOSE_SQUARE_BRACKET token constants if PHP_CodeSniffer 3.7.2 or higher is used. #444 An upstream bugfix makes it unnecessary to check those tokens for being a short array or short list. Sniff which use these token arrays is combination with using the Arrays/Lists classes, should experience a performance boost on PHPCS 3.7.2+ due to this change.

Other

• Minor documentation improvements.
• Various small housekeeping and maintenance updates.

Fixed

Utils

• The Lists::isShortList() method will now correctly recognize a short list nested in a long list as a short list. #446 Note: this is a parse error in PHP, but the method should still handle this correctly.

1.0.1 - 2023-01-05

Changed

Other

• Composer: The version requirements for the Composer PHPCS plugin have been widened to allow for version 1.0.0. #428 Please ensure you run composer update phpcsstandards/phpcsutils --with-dependencies to benefit from this.
• Removed the references to pre-1.0.0 QA releases from the docs. #425
• Various small housekeeping and maintenance updates. Thanks @szepeviktor for contributing.

1.0.0 - 2023-01-04

For the full list of features, please see the changelogs of the alpha/rc releases:

• 1.0.0-rc1
• 1.0.0-alpha4
• 1.0.0-alpha3
• 1.0.0-alpha2
• 1.0.0-alpha1

Changed

Other

• Minor documentation improvements.
• Maintainability improvements.

1.0.0-rc1 - 2022-12-27

Added

Tokens

• New Collections::constantModifierKeywords() method. #400
• New Collections::listOpenTokensBC() method. #405

Changed

Utils

• ObjectDeclarations::getClassProperties(): the array return value will now include 'abstract_token', 'final_token', and 'readonly_token' indexes identifying the stack pointers to these keyword, where applicable. If the keyword is not used, the value will be set to false. #401

Other

• Various housekeeping and CI maintenance.

Removed

Everything which was previously deprecated in the 1.0.0-alpha4 release, has now been removed. #410

This includes:

• The PHPCS23Utils standard.
• Collections class: direct access to the properties in the class.
• Collections class: the Collections::arrowFunctionTokensBC(), Collections::functionDeclarationTokensBC(), Collections::parameterTypeTokensBC(), Collections::propertyTypeTokensBC() and Collections::returnTypeTokensBC() methods.
• The ControlStructures::getDeclareScopeOpenClose() method.
• The FunctionDeclarations::getArrowFunctionOpenClose() method.
• The FunctionDeclarations::isArrowFunction() method.

See the changelog for the 1.0.0-alpha4 release for details about replacements for the removed functionality.

Fixed

Utils

• Arrays::getOpenClose(): small efficiency fix. #406
• ControlStructures::hasBody(): correctly identify that a control structure does not have a body - 'has_body' = false -, when the control structure is ended by a PHP close tag. #403
• Lists::getOpenClose(): small efficiency fix. #407

1.0.0-alpha4 - 2022-10-25

Notes:

• While still in alpha, some BC-breaks may be introduced. These are clearly indicated in the changelog with the symbol.
• Until PHPCS 4.x has been released, PHPCSUtils does not formally support it, though an effort is made to keep up with the changes and anticipate potential compatibility issues. For testing purposes only, the composer configuration allows for PHPCSUtils to be installed with PHPCS 4.x.

Breaking Changes

Support for PHP_CodeSniffer < 3.7.1 has been dropped after consultation with the principle external standards which depend on PHPCSUtils. #347

This was unfortunately necessary as the incessant additions of new syntaxes since PHP 7.4 made it impossible to continue to support PHPCS < 3.7.1, while still providing reliable results for modern PHP code.

Added

Now support for PHPCS < 3.7.1 has been dropped, this edition adds support to all functionality in PHPCSUtils for new syntaxes and features from PHP 8.0 and 8.1 and preliminary support for PHP 8.2.

This means that support for the following syntaxes/features has been added (or existing support verified/improved):

• PHP 7.4
  • Array unpacking in array expressions.
• PHP 8.0
  • The mixed type. #163
  • Union types, including supporting the false and null types. #168, #225
  • Constructor property promotion. #169, #226
  • Nullsafe object operators. #176, #183
  • Namespaced names as single token (cross-version PHPCS 3.x vs 4.x). #205, #206, #207, #208, #209, #210, #211, #212, #213, #217, #241
  • Dereferencing of interpolated text strings.
  • Named arguments in function calls. #235, #243, #383
  • Match expressions. #247, #335, #356
  • Trailing commas in parameter lists and closure use lists.
  • Attributes. #357
• PHP 8.1
  • Enumerations. #285, #358
  • Explicit octal notation. #293
  • Array unpacking with string keys.
  • never type.
  • Named parameters after argument unpacking. #383
  • First class callables. #362
  • Readonly properties. #363
  • new in initializers.
  • Intersection types. #365
• PHP 8.2
  • Constants in traits. #366
  • Readonly classes. #367
  • true type. #368
  • null and false as stand-alone types.

Please report any bugs/oversights you encounter!

PHPCS Backcompat

• BCTokens::magicConstants() as introduced in PHPCS 3.5.6. #172 The same token array previously already existed in PHPCSUtils as Collections::$magicConstants (which has now been deprecated).

TestUtils

• New UtilityMethodTestCase::usesPhp8NameTokens() method as a helper for tests using token position calculations when testing against both PHPCS 3.x as well as 4.x. #200, #217, #241

Tokens

• New PHPCSUtils\Tokens\TokenHelper class: Utility functions for working with tokens and token collections. #304 This class initially contains a tokenExists() method to work around potential interference from PHP-Parser also backfilling tokens. External standards using a function call to defined() to determine whether a token is available should replace those with a function call to the TokenHelper::tokenExists() method.
• New Collections::arrayOpenTokensBC() method. #233, #311
• New Collections::functionCallTokens() method to retrieve the tokens which can represent function calls and function-call-like language constructs, like class instantiations. #233
• New Collections::nameTokens() method to retrieve the tokens which can be used for “names”, be it namespace, OO, function or constant names. #204, #217
• New Collections::namespacedNameTokens() method to retrieve the tokens which can be encountered in a fully, partially or unqualified name and in namespace relative names. #202, #217
• New Collections::parameterPassingTokens() method to retrieve the tokens which can be passed to the methods in the PassedParameters class. #233
• New Collections::phpOpenTags() method. #254
• New Collections::shortArrayListOpenTokensBC() method. #381

Utils

• New PHPCSUtils\Utils\Context class: Utility functions to determine the context in which an arbitrary token is used. #219. #390 Initial set of available methods: inEmpty(), inIsset(), inUnset(), inAttribute, inForeachCondition() and inForCondition().
• New PHPCSUtils\Utils\MessageHelper class: Utility functions for creating error/warning messages. #249, #391 Initial set of available methods: addMessage(), addFixableMessage(), stringToErrorcode() and showEscapeChars().
• New PHPCSUtils\Utils\PassedParameters::getParameterFromStack() efficiency method to retrieve a potentially named function call parameter from a parameter information stack as previously retrieved via PassedParameters::getParameters(). #235, #237, #383
• New PHPCSUtils\Utils\TextStrings::getEndOfCompleteTextString() method. #320 This method allows to retrieve the stack pointer to the last token within a - potentially multi-line - text string. This method compliments the TextStrings::getCompleteTextString() method which will retrieve the contents of the complete text string.
• New PHPCSUtils\Utils\TextStrings::getEmbeds() method to retrieve an array with all variables/expressions as embedded in a text string. #321
• New PHPCSUtils\Utils\TextStrings::stripEmbeds() method to strip all embedded variables/expressions from a text string. #321
• New PHPCSUtils\Utils\TextStrings::getStripEmbeds() method. #321 This method is public for those rare cases where both the embeds, as well as the text stripped off embeds, is needed.
• New PHPCSUtils\Utils\UseStatements::mergeImportUseStatements() method. #196

Other

• PHPCSUtils will now cache the results of (potentially) token walking intensive or processing intensive function calls during a run. #332, #377 This should significantly improve performance when multiple sniffs call these functions for the same token during a PHPCS run. The results of the following functions will now be cached:
  • Arrays::getDoubleArrowPtr()
  • Arrays::isShortArray()
  • FunctionDeclarations::getParameters()
  • Lists::getAssignments()
  • Lists::isShortList()
  • Namespaces::findNamespacePtr()
  • PassedParameters::getParameters()
  • TextStrings::getEndOfCompleteTextString()
  • TextStrings::getStripEmbeds()
  • UseStatements::splitImportUseStatement()

Changed

PHPCS Backcompat

• All token array methods in the BCTokens class are fully up-to-date with the upstream PHP_CodeSniffer\Util\Tokens properties as per PHPCS master at the time of this release. #327, #347, #360
• All methods in the BCFile class are fully up-to-date with the upstream PHP_CodeSniffer\Files\File methods as per PHPCS master at the time of this release. #347
• BCFile::getMethodParameters(): forward compatibility with PHPCS 4.x in which closure use will be a parenthesis owner. #251
• If a non-existent token array is requested from the BCTokens class, a PHPCSUtils\Exceptions\InvalidTokenArray exception will be thrown. #344 The PHPCSUtils\Exceptions\InvalidTokenArray exception extends the PHPCS native PHP_CodeSniffer\Exceptions\RuntimeException. Previously, an empty array would be returned.

TestUtils

• UtilityMethodTestCase: all properties contained in the test case class will now always be reset after the tests have run. #325
• UtilityMethodTestCase::getTargetToken(): when the target token cannot be found, the method will now throw a (catchable) PHPCSUtils\Exceptions\TestTargetNotFound exception instead of failing the test. #248, #371 If uncaught, this means that the test will be marked as errored instead of failed.
• UtilityMethodTestCase::getTargetToken(): this method is now static, which allows for it to be used in “set up before class” fixtures. #382. #385

Tokens

• Collections::functionCallTokens() and Collections::parameterPassingTokens(): now include the T_PARENT token. #328 This accounts for a change in PHPCS 3.7.0 for how parent in new parent is tokenized.
• If a non-existent token array is requested from the Collections class, a PHPCSUtils\Exceptions\InvalidTokenArray exception will be thrown. #349 The PHPCSUtils\Exceptions\InvalidTokenArray exception extends the PHPCS native PHP_CodeSniffer\Exceptions\RuntimeException.

Utils

• Arrays::isShortArray()/Lists::isShortList(): the underlying logic has been completely refactored for improved accuracy and improved performance. #392
• FunctionDeclarations::getParameters(): the return array of the method may contain two new keys - property_visibility and visibility_token. #169 These keys will only be included if constructor property promotion is detected.
• FunctionDeclarations::getParameters(): forward compatibility with PHPCS 4.x in which closure use will be a parenthesis owner. #251
• GetTokensAsString: previously the tabReplaced() method was an alias for the normal() method. This has now been reversed. #297
• Operators::isReference(): forward compatibility with PHPCS 4.x in which closure use will be a parenthesis owner. #195
• Parentheses: all methods will now recognize isset(), unset(), empty(), exit(), die() and eval() as parentheses owners. #215 Note: PHPCS natively does not recognize these constructs as parentheses owners, though this may change in the future. See: PHPCS#3118
• PassedParameters: all methods will now recognize anonymous class instantiations as constructs which can pass parameters. #234
• PassedParameters::getParameters(): when a named parameter is encountered in a function call, the returned parameter information array for that parameter will now contain the following additional keys: 'name', 'name_token' and the top-level index for the parameter will be set to the parameter 'name' instead of its position. #235, #243, #383 The existing 'start', 'end', 'raw' and 'clean' keys will contain the same content as before: the information about the parameter value (excluding the name part).
• PassedParameters::getParameters(): new, optional parameter $limit to allow for limiting the number of parameters/array items to be parsed. #261 This allows for higher efficiency when retrieving the parameters/array entries, especially for large arrays if only the first few entries need to be examined. Use with care on function calls, as this can break support for named parameters!
• PassedParameters::getParameters(): new, optional parameter $isShortArray to allow for skipping the “is short array” check for predetermined short arrays. #269, #270 Use judiciously and with extreme care!
• PassedParameters::getParameter(): new semi-optional $paramNames parameter to allow for retrieving a parameter from a function call using named parameters. #235 This parameter is required when examining a function call and an exception will be thrown if it was not passed. This new $paramNames parameter allows for passing either the parameter name as a string or as an array of strings. While a parameter can only have one name, a lot of packages have been, and may still be, reviewing and renaming parameters to more descriptive names to support named parameters in PHP 8.0, so, to allow for supporting multiple versions of packages, different names can be used for the same parameter in a PHP 8.0+ function call and by allowing multiple names to be passed, the method supports this.
• PassedParameters::getParameter(): efficiency improvement applicable to function calls not using named parameters and arrays. #261, #262
• PassedParameters::hasParameters(): now allows for the T_PARENT token for new parent() class instantiations. #328 This accounts for a change in PHPCS 3.7.0 regarding how parent in new parent is tokenized.
• PassedParameters::hasParameters(): new, optional parameter $isShortArray to allow for skipping the “is short array” check for predetermined short arrays. #269, #270 Use judiciously and with extreme care!
• UseStatements::getType(): forward compatibility with PHPCS 4.x in which closure use will be a parenthesis owner. #251

Other

• The master branch has been renamed to stable. #397
• All non-abstract classes in this package are now final. #376
• The parameter names in various function declarations have been changed to not intersect with reserved keywords. #256 In the unlikely event an external standard using PHPCSUtils would be using function calls with named parameters, the parameter names will need to be updated to match.
• Composer: The package will now identify itself as a static analysis tool. Thanks @GaryJones! #341
• Readme/website homepage: the installation instructions have been updated to include information on installing this library and the included Composer PHPCS plugin in combination with Composer >= 2.2. #291, #292
• Various documentation improvements. #216, #309, #394, #395, #396, #398
• Various housekeeping and CI maintenance. Amongst other things, CI is now run via GitHub Actions (#239), the PHPCSUtils native tests now use the PHPUnit Polyfills package (#277) and the tests are now run against PHP 5.4 - 8.2.

Deprecated

Everything which has currently been deprecated, will be removed before the final 1.0.0 version of PHPCSUtils is tagged.

Tokens

Collections class: direct access to the properties in the class is now deprecated for forward-compatibility reasons. All properties have a replacement which should be used instead, in most cases this will be a method with the same name as the previously used property,

Deprecated	Replacement	PR	Remarks
Collections::$alternativeControlStructureSyntaxTokens	Collections::alternativeControlStructureSyntaxes()	#311	Mind the change in the name!
Collections::$alternativeControlStructureSyntaxCloserTokens	Collections::alternativeControlStructureSyntaxClosers()	#311	Mind the change in the name!
Collections::$arrayTokens	Collections::arrayTokens()	#311
Collections::$arrayTokensBC	Collections::arrayTokensBC()	#311
Collections::$classModifierKeywords	Collections::classModifierKeywords()	#311
Collections::$closedScopes	Collections::closedScopes()	#311
Collections::$controlStructureTokens	Collections::controlStructureTokens()	#311
Collections::$incrementDecrementOperators	Collections::incrementDecrementOperators()	#311
Collections::$listTokens	Collections::listTokens()	#311
Collections::$listTokensBC	Collections::listTokensBC()	#311
Collections::$magicConstants	PHPCSUtils\BackCompat\BCTokens::magicConstants() or PHP_CodeSniffer\Util\Tokens::$magicConstants	#311
Collections::$namespaceDeclarationClosers	Collections::namespaceDeclarationClosers()	#311
Collections::$objectOperators	Collections::objectOperators()	#176
Collections::$OOCanImplement	Collections::ooCanImplement()	#311	Mind the case change in the oo prefix!
Collections::$OOCanExtend	Collections::ooCanExtend()	#311	Mind the case change in the oo prefix!
Collections::$OOConstantScopes	Collections::ooConstantScopes()	#311	Mind the case change in the oo prefix!
Collections::$OOPropertyScopes	Collections::ooPropertyScopes()	#311	Mind the case change in the oo prefix!
Collections::$OOHierarchyKeywords	Collections::ooHierarchyKeywords()	#311	Mind the case change in the oo prefix!
Collections::$OONameTokens	Collections::namespacedNameTokens()	#202	Mind the change name!
Collections::$parameterTypeTokens	Collections::parameterTypeTokens()	#168
Collections::$propertyModifierKeywords	Collections::propertyModifierKeywords()	#311
Collections::$propertyTypeTokens	Collections::propertyTypeTokens()	#168
Collections::$returnTypeTokens	Collections::returnTypeTokens()	#168
Collections::$shortArrayTokens	Collections::shortArrayTokens()	#311
Collections::$shortArrayTokensBC	Collections::shortArrayTokensBC()	#311
Collections::$shortListTokens	Collections::shortListTokens()	#311
Collections::$shortListTokensBC	Collections::shortListTokensBC()	#311
Collections::$textStingStartTokens	Collections::textStringStartTokens()	#311, #319	Mind the fixed typo in the name!

Additionally, the following methods in the Collections class have been deprecated:

Deprecated	Replacement	PR
Collections::arrowFunctionTokensBC()	Use the T_FN token instead.	#347
Collections::functionDeclarationTokensBC()	Collections::functionDeclarationTokens()	#347
Collections::parameterTypeTokensBC()	Collections::parameterTypeTokens()	#347
Collections::propertyTypeTokensBC()	Collections::propertyTypeTokens()	#347
Collections::returnTypeTokensBC()	Collections::returnTypeTokens()	#347

Utils

• ControlStructures::getDeclareScopeOpenClose(): this method is no longer needed, check the scope_opener/scope_closer on the T_DECLARE token instead. #347
• FunctionDeclarations::getArrowFunctionOpenClose(): this method is no longer needed, check the scope_opener/scope_closer etc on the T_FN token instead. #347
• FunctionDeclarations::isArrowFunction(): this method is no longer needed, use the T_FN token instead. #347

Other

• The PHPCS23Utils standard, which is no longer needed now support for PHPCS < 3.7.1 has been dropped. #347

Removed

• Support for PHPCS < 3.7.1. #347

Utils

• The following constants, which were only intended for internal use, have been removed: #347
  • PHPCSUtils\Utils\Numbers::REGEX_NUMLIT_STRING
  • PHPCSUtils\Utils\Numbers::REGEX_HEX_NUMLIT_STRING
  • PHPCSUtils\Utils\Numbers::UNSUPPORTED_PHPCS_VERSION

Fixed

Abstract Sniffs

• AbstractArrayDeclarationSniff::getActualArrayKey(): will now handle escaped vars in heredoc array keys better. #379

Fixers

• SpacesFixer: in a specific new line vs trailing comment situation, the fixer would incorrectly add a stray new line. #229

TestUtils

• UtilityMethodTestCase::getTargetToken(): will now throw a PHPCSUtils\Exceptions\TestMarkerNotFound exception if the provided test marker comment is not found. #273, #372 This prevents the method potentially misidentifying the target token.

Tokens

• Collections::parameterTypeTokens(), Collections::propertyTypeTokens() and Collections::returnTypeTokens(): include the namespace keyword for namespace relative identifier names. #180

Utils

• Arrays::isShortArray()/Lists::isShortList(): fixed a number of bugs which previously resulted in an incorrect short list/short array determination. #392
• FunctionDeclarations::getParameters(): will now correctly recognize namespace relative names when used in a parameter type. #180
• FunctionDeclarations::getProperties(): will now correctly recognize namespace relative names when used in the return type. #180
• ObjectDeclarations::findExtendedClassName(): will now correctly recognize namespace relative names when used as the extended parent class name. #181
• ObjectDeclarations::findExtendedInterfaceNames(): will now correctly recognize namespace relative names when used in extended interface names. #181
• ObjectDeclarations::findImplementedInterfaceNames(): will now correctly recognize namespace relative names when used in implemented interface names. #181
• ObjectDeclarations::getClassProperties(): will now correctly handle classes declared with both the final as well as the abstract keyword. #252
• Operators::isReference(): if one parameter in a function declaration was passed by reference, then all T_BITWISE_AND (not intersection type &’s) tokens would be regarded as references. #188
• Operators::isReference(): the & would not be recognized as a reference for arrow function parameters passed by reference. #192
• Operators::isUnaryPlusMinus(): a preceding exit, break, continue or arrow function => is now recognized as an indicator that a plus/minus sign is unary. #187, #197
• Variables::getMemberProperties(): will now correctly recognize namespace relative names when used in a property type. #180

1.0.0-alpha3 - 2020-06-29

Notes:

• While still in alpha, some BC-breaks may be introduced. These are clearly indicated in the changelog with the symbol.
• Until PHPCS 4.x has been released, PHPCSUtils does not formally support it, though an effort is made to keep up with the changes and anticipate potential compatibility issues. For testing purposes, the composer configuration allows for PHPCSUtils to be installed with PHPCS 4.x.
• Until PHP 8.0 has been released, PHPCSUtils does not formally support it, though an effort is made to keep up with the changes and anticipate potential compatibility issues. For testing purposes, the composer configuration allows for PHPCSUtils to be installed with PHP 8.

Added

• New PHPCSUtils\Utils\NamingConventions class: Utility functions for working with identifier names (namespace names, class/trait/interface names, function names, variable and constant names). #119
• New PHPCSUtils\BackCompat\Helper::getEncoding() method. #118
• New PHPCSUtils\Utils\ControlStructures::getCaughtExceptions() method. #114, #138
• New PHPCSUtils\Utils\UseStatements::splitAndMergeImportUseStatement() method. #117

PHPCS BackCompat

• BCFile::getMethodProperties(): support for “static” as a return type (PHP 8.0). #134, PHPCS#2952

TestUtils

• UtilityMethodTestCase: new public $phpcsVersion property for use in tests. #107 Note: if the PHPCS version is needed within a data provider method for a test, Helper::getVersion() still needs to be used as the data providers are run before the setUpBeforeClass()-like methods which set the property.

Tokens

• New Collections::$incrementDecrementOperators property. #130
• New Collections::$magicConstants property. #106
• New Collections::$objectOperators property. #130
• New Collections::$OOHierarchyKeywords property representing the keywords to access properties or methods from inside a class definition, i.e self, parent and static. #115
• New Collections::$OONameTokens property containing tokens which can be part of a partially/fully qualified name when used in inline code. #113
• New Collections::functionDeclarationTokens() method to retrieve the tokens which represent a keyword starting a function declaration. #133 This method is compatible with PHPCS 3.5.3 and higher.
• New Collections::functionDeclarationTokensBC() method to retrieve the tokens which represent a keyword starting a function declaration (cross-version compatible). #133 This method is compatible with PHPCS 2.6.0 and higher.
• New Collections::parameterTypeTokensBC() method to retrieve the tokens which need to be recognized for parameter types cross-version. #109 Use this method when the implementing standard needs to support PHPCS < 3.3.0.
• New Collections::propertyTypeTokensBC() method to retrieve the tokens which need to be recognized for property types cross-version. #109 Use this method when the implementing standard needs to support PHPCS < 3.3.0.
• New Collections::returnTypeTokensBC() method to retrieve the tokens which need to be recognized for return types cross-version. #109 Use this method when the implementing standard needs to support PHPCS < 3.5.4.
• Collections::$returnTypeTokens: support for “static” as a return type (PHP 8.0). #134

Utils

• FunctionDeclarations::getProperties(): support for “static” as a return type (PHP 8.0). #134

Changed

PHPCS BackCompat

• BCFile::getDeclarationName(): has been made compatible with PHPCS 4.x. #110
• BCFile::getMethodProperties(): has been made compatible with PHPCS 4.x. #109
• BCFile::getMemberProperties(): has been made compatible with PHPCS 4.x. #109
• BCTokens: The visibility of the BCTokens::$phpcsCommentTokensTypes, BCTokens::$ooScopeTokens, BCTokens::$textStringTokens properties has changed from protected to private. #139
• Helper::setConfigData(): has been made compatible with PHPCS 4.x. #137 A new $config parameter has been added to the method. This parameter is a required parameter when the method is used with PHPCS 4.x.

TestUtils

• UtilityMethodTestCase: tests for JS/CSS will now automatically be skipped when run in combination with PHPCS 4.x (which drops JS/CSS support). #111
• Confirmed that the currently available test utils are compatible with PHPUnit 9.x. #103

Tokens

• Collections::$parameterTypeTokens: has been made compatible with PHPCS 4.x. #109 This removes support for PHPCS < 3.3.0 from the property. Use the Collections::parameterTypeTokensBC() method instead if PHPCS < 3.3.0 needs to be supported.
• Collections::$propertyTypeTokens: has been made compatible with PHPCS 4.x. #109 This removes support for PHPCS < 3.3.0 from the property. Use the Collections::propertyTypeTokensBC() method instead if PHPCS < 3.3.0 needs to be supported.
• Collections::$returnTypeTokens: has been made compatible with PHPCS 4.x. #109 This removes support for PHPCS < 3.5.4 from the property. Use the Collections::returnTypeTokensBC() method instead if PHPCS < 3.5.4 needs to be supported.

Utils

• FunctionDeclarations::getArrowFunctionOpenClose(): has been made compatible with PHPCS 4.x. #109
• FunctionDeclarations::getProperties(): has been made compatible with PHPCS 4.x. #109
• Lists::getAssignments(): the return value of the method has been consolidated to be less fiddly to work with. #129
  • The nested_list index key in the return value has been renamed to is_nested_list.
• ObjectDeclarations::getName(): has been made compatible with PHPCS 4.x. #110
• Variables::getMemberProperties(): has been made compatible with PHPCS 4.x. #109

Other

• Composer: PHPCSUtils can now be installed in combination with PHPCS 4.0.x-dev@dev for testing purposes.
• Composer: The version requirements for the Composer PHPCS plugin have been widened to allow for version 0.7.0 which supports Composer 2.0.0.
• Readme/website homepage: textual improvements. Props @GaryJones. #121
• Readme/website homepage: added additional FAQ question & answers. #157
• The website homepage is now generated using the GitHub Pages gem with Jekyll, making maintenance easier. #141
• Significant improvements to the docblock documentation and by extension the generated API documentation. #145, #146, #147, #148, #149, #150, #151, #152, #153, #154, #155, #156
• Various housekeeping.

Fixed

Abstract Sniffs

• AbstractArrayDeclarationSniff: improved parse error handling. #99

PHPCS BackCompat

• BCFile::findEndOfStatement(): now supports arrow functions when used as a function argument, in line with the same change made in PHPCS 3.5.5. #143
• BcFile::isReference(): bug fix, the reference operator was not recognized as such for closures declared to return by reference. #160, PHPCS#2977

Utils

• FunctionDeclarations::getArrowFunctionOpenClose(): now supports arrow functions when used as a function argument, in line with the same change made in PHPCS 3.5.5. #143
• FunctionDeclarations::getArrowFunctionOpenClose(): now supports for arrow functions returning heredoc/nowdocs, in line with the same change made in PHPCS master and expected to be released in PHPCS 3.5.6. #143
• FunctionDeclarations::getName(): bug fix for functions declared to return by reference. #131
• FunctionDeclarations::isMagicFunction(): bug fix for nested functions. #127
• Operators::isReference(): bug fix, the reference operator was not recognized as such for closures declared to return by reference. #142
• Namespaces::getType(): improved type detection for when the namespace keyword is used as an operator in the global namespace. #132
• TextStrings::getCompleteTextString(): will now remove the newline at the end of a heredoc/nowdoc. #136 PHP itself does not include the last new line in a heredoc/nowdoc text string when handling it, so the method shouldn’t either.

1.0.0-alpha2 - 2020-02-16

Note:

• While still in alpha, some BC-breaks may be introduced. These are clearly indicated in the changelog with the symbol.

Added

• New PHPCSUtils\Utils\ControlStructures class: Utility functions for use when examining control structures. #70
• New PHPCSUtils\Utils\FunctionDeclarations::isArrowFunction() method. #77, #79
• New PHPCSUtils\Utils\FunctionDeclarations::getArrowFunctionOpenClose() method. #77, #79

PHPCS BackCompat

• BCFile::isReference(): support for arrow functions returning by reference. #77
• BCFile::getMethodParameters(): support for arrow functions. #77, #79
• BCFile::getMethodProperties(): support for arrow functions. #77, #79, #89
• BCFile::getDeclarationName(): allow functions to be called “fn”. #77
• BCFile::findEndOfStatement(): support for arrow functions. #77, #79
• BCFile::findStartOfStatement(): support for arrow functions. #77

Tokens

• New Collections::$alternativeControlStructureSyntaxTokens property. #70
• New Collections::$alternativeControlStructureSyntaxCloserTokens property. #68, #69
• New Collections::$controlStructureTokens property. #70
• New Collections::arrowFunctionTokensBC() method. #79

Utils

• Arrays::getDoubleArrowPtr(): support for arrow functions. #77, #79, #84
• FunctionDeclarations::getParameters(): support for arrow functions. #77, #79
• FunctionDeclarations::getProperties(): support for arrow functions. #77, #79
• Operators::isReference(): support for arrow functions returning by reference. #77
• Parentheses::getOwner(): support for arrow functions. #77
• Parentheses::isOwnerIn(): support for arrow functions. #77, #79

Other

• Documentation website at https://phpcsutils.com/

Changed

PHPCS BackCompat

• BCFile::getCondition(): sync with PHPCS 3.5.4 - added support for new $first parameter. #73

Tokens

• The Collections::$returnTypeTokens property now includes T_ARRAY to allow for supporting arrow functions in PHPCS < 3.5.3. #77

Utils

• Conditions::getCondition(): sync with PHPCS 3.5.4 - renamed the existing $reverse parameter to $first and reversing the meaning of the boolean values, to stay in line with PHPCS itself. #73
• Numbers: the $unsupportedPHPCSVersions property has been replaced with an UNSUPPORTED_PHPCS_VERSION constant. #88

Other

• Various housekeeping.

1.0.0-alpha1 - 2020-01-23

Initial alpha release containing:

• A PHPCS23Utils standard which can be used to allow an external PHPCS standard to be compatible with both PHPCS 2.x as well as 3.x.
• A PHPCSUtils standard which contains generic utilities which can be used when writing sniffs. This standard does not contain any sniffs! To use these utilities in PHPCS 3.x, all that is needed is for this package to be installed and registered with PHPCS using installed_paths. If the package is requested via Composer, this will automatically be handled by the Composer PHPCS plugin. To use these utilities in PHPCS 2.x, make sure the external standard includes the PHPCS23Utils standard in the ruleset.xml file like so: <rule ref="PHPCS23Utils"/>.

All utilities offered are compatible with PHP_CodeSniffer 2.6.0 up to the latest stable release.

This initial alpha release contains the following utility classes:

Abstract Sniffs

• AbstractArrayDeclarationSniff: to examine array declarations.

BackCompat

• BCFile: Backport of the latest versions of PHPCS native utility functions from the PHP_CodeSniffer\Files\File class to make them available in older PHPCS versions without the bugs and other quirks that the older versions of the native functions had.
• BCTokens: Backport of the latest versions of PHPCS native token arrays from the PHP_CodeSniffer\Util\Tokens class to make them available in older PHPCS versions.
• Helper: Utility methods to retrieve (configuration) information from PHP_CodeSniffer 2.x as well as 3.x.

Fixers

• SpacesFixer: Utility to check and, if necessary, fix the whitespace between two tokens.

TestUtils

• UtilityMethodTestCase: Base class for use when testing utility methods for PHP_CodeSniffer. Compatible with both PHPCS 2.x as well as 3.x. Supports PHPUnit 4.x up to 8.x. See the usage instructions in the class docblock.

Tokens

• Collections: Collections of related tokens as often used and needed for sniffs. These are additional “token groups” to compliment the ones available through the PHPCS native PHP_CodeSniffer\Util\Tokens class.

Utils

• Arrays: Utility functions for use when examining arrays.
• Conditions: Utility functions for use when examining token conditions.
• FunctionDeclarations: Utility functions for use when examining function declaration statements.
• GetTokensAsString: Utility functions to retrieve the content of a set of tokens as a string.
• Lists: Utility functions to retrieve information when working with lists.
• Namespaces: Utility functions for use when examining T_NAMESPACE tokens and to determine the namespace of arbitrary tokens.
• Numbers: Utility functions for working with integer/float tokens.
• ObjectDeclarations: Utility functions for use when examining object declaration statements.
• Operators: Utility functions for use when working with operators.
• Orthography: Utility functions for checking the orthography of arbitrary text strings.
• Parentheses: Utility functions for use when examining parenthesis tokens and arbitrary tokens wrapped in parentheses.
• PassedParameters: Utility functions to retrieve information about parameters passed to function calls, array declarations, isset and unset constructs.
• Scopes: Utility functions for use when examining token scopes.
• TextStrings: Utility functions for working with text string tokens.
• UseStatements: Utility functions for examining use statements.
• Variables: Utility functions for use when examining variables.