What do we do with numeric render children keys?

Created on 4 May 2025, 8 days ago

Today, in a render arrays:

render properties are the array keys starting by "#", so they are always strings
render children are the array keys not starting by "#", so they can be anything allowed by PHP, so string or integers

Do we have render elements expecting only numeric render children keys? Which ones?
Do we have render elements expecting both string and numeric render children keys? Which ones?
- Maybe html_tag because children are used as a workaround for inserting a renderable in HTML element content.
- In 🐛 Incorrect render structure in Navigation PageContext Active , we are proposing to move slots to render children but it seems slots can also be numeric (^[a-zA-Z0-9_-]+). Is it the opportunity to challenge that?
Would it be relevant to forbid numeric render children keys or mixed render children keys?

📌 Task

Status

Active

Version

11.0 🔥

Component

theme system

Created by

🇫🇷France pdureau Paris

Live updates comments and jobs are added and updated live.

Comments & Activities

Production build 0.71.5 2024