---
title: "[php-src] PR #20903: GH-10497 (const obj->prop write)"
url: https://daily.dev/posts/php-src-pr-20903-gh-10497-const-obj--prop-write--76rbjhmjl
source_url: https://externals.io/message/131440
type: article
source: "externals.io"
published: 2026-06-21T18:42:21.967Z
updated: 2026-06-21T18:42:43.539Z
tags: ["php"]
reading_time: 10
upvotes: 0
comments: 0
language: en
---

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# [php-src] PR #20903: GH-10497 (const obj->prop write)

**[externals.io](https://daily.dev/sources/externals)** · 10 min read · 0 upvotes · 0 comments

## Summary

A PHP internals mailing list thread discussing PR #20903 and the associated RFC `const_object_property_write`, which proposes allowing property writes on objects referenced by PHP constants. Currently, `CONST_OBJ->prop = value` throws a 'Cannot use temporary expression in write context' error, even though the operation mutates the object rather than the constant binding itself. The RFC (now at v0.2) scopes out array/dim writes after community feedback flagged silent no-op concerns, and focuses solely on object property writes. The author intends to open a formal vote targeting PHP 8.6 with a 2/3 majority requirement.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://externals.io/message/131440>

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