Move date timezone cache destruction to post deactivate

Some extensions try to use the date features in their own shutdown,
most notably some logging functions. Because of that, move the
cache tear down until after these resources have been cleaned up.

Author: derickr

ext/date/php_date.c

@@ -698,7 +698,7 @@ zend_module_entry date_module_entry = {
 	PHP_MODULE_GLOBALS(date),   /* globals descriptor */
 	PHP_GINIT(date),            /* globals ctor */
 	NULL,                       /* globals dtor */
-	NULL,                       /* post deactivate */
+	ZEND_MODULE_POST_ZEND_DEACTIVATE_N(date), /* post deactivate */
 	STANDARD_MODULE_PROPERTIES_EX
 };
 /* }}} */
@@ -743,19 +743,26 @@ PHP_RSHUTDOWN_FUNCTION(date)
 		efree(DATEG(timezone));
 	}
 	DATEG(timezone) = NULL;
-	if(DATEG(tzcache)) {
+
+	return SUCCESS;
+}
+/* }}} */
+
+ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date)
+{
+	if (DATEG(tzcache)) {
 		zend_hash_destroy(DATEG(tzcache));
 		FREE_HASHTABLE(DATEG(tzcache));
 		DATEG(tzcache) = NULL;
 	}
+
 	if (DATEG(last_errors)) {
 		timelib_error_container_dtor(DATEG(last_errors));
 		DATEG(last_errors) = NULL;
 	}
 
 	return SUCCESS;
 }
-/* }}} */
 
 #define DATE_TIMEZONEDB      php_date_global_timezone_db ? php_date_global_timezone_db : timelib_builtin_db()
 

ext/date/php_date.h

@@ -123,6 +123,7 @@ PHP_RSHUTDOWN_FUNCTION(date);
 PHP_MINIT_FUNCTION(date);
 PHP_MSHUTDOWN_FUNCTION(date);
 PHP_MINFO_FUNCTION(date);
+ZEND_MODULE_POST_ZEND_DEACTIVATE_D(date);
 
 typedef struct _php_date_obj php_date_obj;
 typedef struct _php_timezone_obj php_timezone_obj;