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As of PHP 8.2.0, `zend_module_entry` structures are no longer copied, so when a module is permanently loaded, and users try to dynamically load that module again, the structure is corrupted[1], causing a segfault on shutdown. We catch that by checking whether any dynamically loaded module is already loaded, and bailing out in that case without modifying the `zend_module_entry` structure. [1] <https://github.com/php/php-src/issues/9589#issuecomment-1263718701> Closes GH-9689.