php / php/php-src

Assertion failure at ext/reflection/php_reflection.c

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@devnexen is already working on this.

Since Apr 16, 2026.

  • #21769 by @devnexen — open
Bug Extension: reflection Status: Verified
Dominant language
C
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Avg merge
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Description

Description

The following code:

<?php
$rc=new reflectionClass('domDocument');
$fusion = $rc;
foreach ($fusion->getProperties() as $rp) {
var_dump($rp->isWritable(null));
}

Resulted in this output:

php: /home/phpfuzz/WorkSpace/flowfusion/php-src/ext/reflection/php_reflection.c:6860: void zim_ReflectionProperty_isWritable(zend_execute_data *, zval *): Assertion `prop->hooks' failed.
Aborted (core dumped)

To reproduce:

./php-src/sapi/cli/php  ./test.php

Commit:

cdc0366bbb366934e91b5461d524226ecb26c891

Configurations:

CC="clang-12" CXX="clang++-12" CFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" CXXFLAGS="-DZEND_VERIFY_TYPE_INFERENCE" ./configure --enable-debug --enable-address-sanitizer --enable-undefined-sanitizer --enable-re2c-cgoto --enable-fpm --enable-litespeed --enable-phpdbg-debug --enable-zts --enable-bcmath --enable-calendar --enable-dba --enable-dl-test --enable-exif --enable-ftp --enable-gd --enable-gd-jis-conv --enable-mbstring --enable-pcntl --enable-shmop --enable-soap --enable-sockets --enable-sysvmsg --enable-zend-test --with-zlib --with-bz2 --with-curl --with-enchant --with-gettext --with-gmp --with-mhash --with-ldap --with-libedit --with-readline --with-snmp --with-sodium --with-xsl --with-zip --with-mysqli --with-pdo-mysql --with-pdo-pgsql --with-pgsql --with-sqlite3 --with-pdo-sqlite --with-webp --with-jpeg --with-freetype --enable-sigchild --with-readline --with-pcre-jit --with-iconv

Operating System:

Ubuntu 20.04 Host, Docker 0599jiangyc/flowfusion:latest

This report is automatically generated by FlowFusion

PHP Version
nightly
Operating System

No response

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with ext/reflection/php_reflection.c at the assertion in zim_ReflectionProperty_isWritable, then reproduce the failure using test.php and the supplied CLI command. Compare the behavior with linked pull request #21769; done means the reproduction no longer aborts at the assertion.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, php
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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