When creating new graphs, invalid offset errors may be generated #5283
Description
2023/03/27 13:52:02 - CMDPHP PHP ERROR WARNING Backtrace: (/graphs_new.php[42]:form_save(), /graphs_new.php[172]:host_new_graphs_save(), /graphs_new.php[274]:create_save_graph(), /lib/template.php[2131]:test_data_sources(), /lib/functions.php[2072]:test_data_source(), /lib/functions.php[2276]:CactiErrorHandler())
2023/03/27 13:52:02 - ERROR PHP WARNING: Trying to access array offset on value of type null in file: /var/www/localhost/htdocs/cacti/lib/functions.php on line: 2276