Migrating from PHP 7.0.x to PHP 7.1.x

Table of Contents

• New features
• New functions
• New global constants
• Backward incompatible changes
• Deprecated features in PHP 7.1.x
• Changed functions
• Other changes
• Windows Support

This new minor version brings with it a number of new features and a few incompatibilities that should be tested for before switching PHP versions in production environments.

See also the migration guides for PHP versions 7.0.x.