php Search Change language: English Submit Pull Request Report a Bug Migrating from PHP 8.0.x to PHP 8.1X Table of Contents New Features New Classes and Interfaces New Functions New Global Constants Backward Incompatible Changes Deprecated Features Other Changes This new minor version brings with it a number of new features and few incompatibilities that should be tested for before switching PHP versions in production environments See also the migration guides for PHP versions 72x73*74X80* User Contributed Notes add note There are no user contributed notes for this page 71X