PUBLIC MARKS from kasi77 with tag bug

One of the latest software errors that had widely noticed consequences was Google’s Gmail outage in February. The problem in that case was, according to Google, a bug in the software that distributed load between its different data centers. The Gmail outage only resulted in people not having access to their email for a few hours. No one got killed. Nothing exploded. It was an inconvenience, and while it was a significant inconvenience for some of Gmail’s users, it was still just that: an inconvenience. This article is about some of the more dire consequences of software errors through the years. Incidents that make the Gmail outage seem rather trivial.

line 975 replace : $parent['norder'] = is_null($tmp_order) ? 0 : $tmp_order; by : $parent['norder'] = (is_null($tmp_order) or empty($tmp_order)) ? 0 : $tmp_order;