This is just an issue to keep track of which of the implemented RFCs for PHP 8.1 have been addressed.

This list should be updated when additional RFCs are accepted/implemented.

To Do

• Disable autovivification on false
• Deprecate implicit non-integer-compatible float to int conversions
• Deprecate passing null to non-nullable arguments of internal functions
• Array unpacking with string keys
• Change Default mysqli Error Mode
• Mysqli bind in execute
• Static variables in inherited methods
• Add return type declarations for internal methods
• Make reflection setAccessible() no-op
• Deprecations for PHP 8.1
  Sub-list:
  • key(), current(), next(), prev(), and reset() on objects
  • Passing bool for $value argument of IntlCalendar::roll()
  • Accessing static members on traits
  • ctype_*() function family accepts int parameters
  • mysqli::init()
  • ssl_method option to SoapClient constructor

Aside from the RFCs, there are also the changes which were made outside of the RFC process and are listed in:

• The PHP 8.1 Upgrading guide.
  Status: anything which relates to "list"-based sniffs has been accounted for and pulled. Still plenty more to review for scannability.
• The PHP 8.0 to 8.1 Migration guide
• PHP 8.1 NEWS/Changelog
  Status: reviewed for anything which PHPCompatibility should account for up to commit php/php-src@33cd61c dd Feb 23 2022.
• Changelog

Claimed

• Deprecations for PHP 8.1
  Sub-list:
  • Calling overloaded pgsql functions without the connection argument
    Status: WIP/Needs to wait for PHPCSUtils alpha 4 named parameters support PR for the OptionalToRequiredFunctionParameters sniff to be pulled first
    Owner: @jrfnl

Has PR

• Pure intersection types - PR PHP 8.1 | Add support for and detection of intersection types in param, return and property types #1466 + PHP 8.1 | NewConstants/NewClasses: add new intersection related constants/classes (RFC) #1601
• Add IntlDatePatternGenerator - PR PHP 8.1 | NewClasses: account for PHP 8.1 changes #1328
• Enumerations - PRs PHP 8.0/8.1 | ForbiddenNames: detect use of new keywords when used as names #1415 (only ForbiddenNames) + PHP 8.1 | Various sniffs: detect enums and enum related features (RFC) #1604 (everything else)
• Add array_is_list(array $array): bool - PR PHP 8.1 | NewFunctions: account for PHP 8.1 changes #1325
• Explicit octal integer literal notation - PR ✨ PHP 8.1 | New PHPCompatibility.Numbers.NewExplicitOctalNotation sniff #1420
• Restrict $GLOBALS usage - PR ✨ PHP 8.1: New PHPCompatibility.Variables.RemovedIndirectModificationOfGlobals sniff #1487 + ✨ PHP 8.1: New PHPCompatibility.ParameterValues.NewArrayMergeRecursiveWithGlobalsVar sniff #1488
• Add fetch_column method to mysqli - PR PHP 8.1 | NewFunctions: account for PHP 8.1 changes #1325
• fsync() Function - PR PHP 8.1 | NewFunctions: account for PHP 8.1 changes #1325
• noreturn type - PR PHP 8.0/8.1 | ForbiddenNames: detect use of new keywords when used as names #1415 (ForbiddenNames) + PHP 8.1 | NewReturnTypeDeclarations: support never and verify standalone types #1458
• Fibers - PR PHP 8.1 | NewClasses: account for PHP 8.1 changes #1328 + PHP 8.1 | NewIniDirectives: account for PHP 8.1 changes #1329
• Phasing out Serializable - PR PHP 8.1: New PHPCompatibility.Interfaces.RemovedSerializable sniff #1330 + FunctionNameRestrictions/NewMagicMethods: special case the magic __[un]serialize() methods #1331
• Final class constants - PR PHP 8.1: New PHPCompatibility.Classes.NewFinalClassConstants sniff #1317 + Classes/NewConstVisibility: account for PHP 8.1 final class constants #1318
• New in initializers - PR ✨ PHP 8.1: New PHPCompatibility.InitialValue.NewNewInInitializers sniff #1464 + ✨ PHP 8.1: New PHPCompatibility.InitialValue.NewNewInDefine sniff #1465
• Deprecations for PHP 8.1
  Sub-list:
  • date_sunrise() and date_sunset() - PR PHP 8.1 | RemovedFunctions: account for PHP 8.1 changes #1321 + PHP 8.1 | RemovedIniDirectives: account for PHP 8.1 changes #1320
  • mb_check_encoding() without argument - PR PHP 8.1: New PHPCompatibility.ParameterValues.RemovedMbCheckEncodingNoArgs sniff #1315
  • FILE_BINARY and FILE_TEXT constants - PR PHP 8.1 | RemovedConstants: account for PHP 8.1 changes #1319
  • strptime() - PR PHP 8.1 | RemovedFunctions: account for PHP 8.1 changes #1321
  • strftime() and gmtstrftime() - PR PHP 8.1 | RemovedFunctions: account for PHP 8.1 changes #1321
  • mhash*() function family - PR PHP 8.1 | RemovedFunctions: account for PHP 8.1 changes #1321
  • Return by reference with void type - PR PHP 8.1: New PHPCompatibility.FunctionDeclarations.RemovedReturnByReferenceFromVoid sniff #1316
  • NIL constant defined by the IMAP extension - PR PHP 8.1 | RemovedConstants: account for PHP 8.1 changes #1319
  • $num_points parameter of image(open|filled)polygon - PR PHP 8.1 | RemovedFunctionParameters: account for PHP 8.1 changes #1322
  • filter.default ini setting - PR PHP 8.1 | RemovedIniDirectives: account for PHP 8.1 changes #1320
  • auto_detect_line_endings ini setting - PR PHP 8.1 | RemovedIniDirectives: account for PHP 8.1 changes #1320
  • FILTER_SANITIZE_STRING - PR PHP 8.1 | RemovedConstants: account for PHP 8.1 changes #1319
  • oci8.old_oci_close_semantics ini setting - PR PHP 8.1 | RemovedIniDirectives: account for PHP 8.1 changes #1320
  • odbc_result_all() - PR PHP 8.1 | RemovedFunctions: account for PHP 8.1 changes #1321
• First-class callable syntax - PR ✨ PHP 8.1: New PHPCompatibility.Syntax.NewFirstClassCallables sniff #1425
• Readonly properties 2.0 - PR PHP 8.0/8.1 | ForbiddenNames: detect use of new keywords when used as names #1415 (ForbiddenNames) ✨ PHP 8.1: New PHPCompatibility.Classes.NewReadonlyProperties sniff #1426

Policy RFC:

• Namespaces in bundled PHP extensions - PR Namespaces/ReservedNames: various improvements #1729

Reviewed and concluded non-sniffable

• Deprecations for PHP 8.1
  • get_class(), get_parent_class() and get_called_class() without argument RFC rejected
  • t fopen mode RFC rejected

Process

If anyone starts work on updating PHPCompatibility to handle any of these issues, please either update the above list (if you can) or leave a comment below, so one of the maintainers can update the list.

Once PHP 8.1 comes out, individual issues should be opened for the changes which remain at that point in time.