Fixed bug #44720 (Prevent infinite recursion within session_register)

ext/session/session.c

@@ -1655,12 +1655,19 @@ static void php_register_var(zval** entry TSRMLS_DC)
 	zval **value;
 	
 	if (Z_TYPE_PP(entry) == IS_ARRAY) {
+		if (Z_ARRVAL_PP(entry)->nApplyCount > 1) {
+			return;
+		}
+
 		zend_hash_internal_pointer_reset(Z_ARRVAL_PP(entry));
+		Z_ARRVAL_PP(entry)->nApplyCount++;
 
 		while (zend_hash_get_current_data(Z_ARRVAL_PP(entry), (void**)&value) == SUCCESS) {
 			php_register_var(value TSRMLS_CC);
 			zend_hash_move_forward(Z_ARRVAL_PP(entry));
 		}
+
+		Z_ARRVAL_PP(entry)->nApplyCount--;
 	} else {
 		convert_to_string_ex(entry);