PHP RFC: Reserve keywords in PHP 8

• Date: 2020-06-13
• Author: Ilija Tovilo tovilo.ilija@gmail.com
• Status: Withdrawn
• First Published at: https://wiki.php.net/rfc/reserve_keywords_in_php_8

This RFC proposes adding new keywords to PHP 8 to avoid BC breaks in future PHP 8.x versions.

• enum (reserved_non_modifiers)

Keywords marked as reserved_non_modifiers will be disallowed in the following contexts:

• namespaces
• class names
• function names
• global constants

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