I have a hashtable, keys are of the form "Oct 19 1999 12:00AM", values are a single character, like "X" or "H". The hashtable is filled with data from a Sybase database. When I request a value directly after writing it into the hashtable there is no problem. When I request it later in the script trying to fill a HTML-Table the key of another field of this hashtable is returned as the value sometimes. I cannot recognize any pattern in this, there are always about 10% of the fields affected. A reload of the page does not necessarily affect the same fields in the same way again.
The script worked without problems with PHP3.x