From:             [EMAIL PROTECTED]
Operating system: Linux, Solaris and win32
PHP version:      4.1.1
PHP Bug Type:     Reproducible crash
Bug description:  modules are unloaded in the wrong order

zend_hash_destroy destroys things in order.  Thus, if one has
two loadable modules, one of which depends on the other by
calling a function in the initialization or finalization functions, then
bad things will happen whichever order they appear in php.ini, since
whichever way around they're listed,  
a function will be called after the providing library has been unloaded.

Our fix is simply to change zend_hash_destroy to traverse its list
backwards (from ht->pListTail rather than ht->pListHead).

(I believe we (probably as MessagingDirect) reported this bug in PHP3 and
it was fixed then, but it seems to have reappeared.)

-- 
Edit bug report at: http://bugs.php.net/?id=15254&edit=1


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