[php-src] Issue #9589: PHP 8.2.0 RC2 core dumps (SIGSEGV) when dl() is used

Issue: https://github.com/php/php-src/issues/9589 Author: michael-o ### Description The following code: ```php <?php print("enable_dl: ".ini_get("enable_dl")); dl("xml.so"); ``` Resulted in this output: ``` enable_dl: 1 Warning: Module "xml" is already loaded in Unknown on line 0 Segmentation fault (core dumped) ``` But I expected this output instead: ``` enable_dl: 1 Warning: Module "xml" is already loaded in Unknown on line 0 ``` Working example: ``` % php --version PHP 8.1.10 (cli) (built: Sep 16 2022 15:09:44) (NTS) Copyright (c) The PHP Group Zend Engine v4.1.10, Copyright (c) Zend Technologies % php -m [PHP Modules] Core date hash json libxml mysqlnd openssl pcre Reflection SPL standard xml zlib [Zend Modules] % cat > sigsegv.php <<EOF ? <?php ? print("enable_dl: ".ini_get("enable_dl")); ? dl("xml.so"); ? EOF % php sigsegv.php enable_dl: 1 Warning: Module "xml" is already loaded in Unknown on line 0 ``` Failing example: ``` % php --version PHP 8.2.0RC2 (cli) (built: Sep 20 2022 20:24:30) (NTS) Copyright (c) The PHP Group Zend Engine v4.2.0RC2, Copyright (c) Zend Technologies % php -m [PHP Modules] Core date hash json libxml mysqlnd openssl pcre random Reflection SPL standard xml zlib [Zend Modules] % cat > sigsegv.php <<EOF ? <?php ? print("enable_dl: ".ini_get("enable_dl")); ? dl("xml.so"); ? EOF % php sigsegv.php enable_dl: 1 Warning: Module "xml" is already loaded in Unknown on line 0 Segmentation fault (core dumped) % lldb --core php.core /usr/local/bin/php (lldb) target create "/usr/local/bin/php" --core "php.core" Core file '/tmp/php.core' (x86_64) was loaded. Could not load history file (lldb) bt all * thread #1, name = 'php', stop reason = signal SIGSEGV * frame #0: 0x00000000006939c3 php`___lldb_unnamed_symbol3142$$php + 19 frame #1: 0x000000000069b396 php`zend_hash_apply_with_argument + 118 frame #2: 0x000000000068e884 php`___lldb_unnamed_symbol3137$$php + 84 frame #3: 0x000000000069ac68 php`zend_hash_graceful_reverse_destroy + 536 frame #4: 0x0000000000683cc8 php`___lldb_unnamed_symbol3117$$php + 24 frame #5: 0x000000000060c189 php`php_module_shutdown + 41 frame #6: 0x0000000000772858 php`___lldb_unnamed_symbol4788$$php + 696 frame #7: 0x0000000000418fe0 php`_start + 256 (lldb) ``` It looks like a regression to me from 8.1 to 8.2. ### PHP Version PHP 8.2.0 RC2 ### Operating System FreeBSD: 12.3-RELEASE-p7