timestamp

[eluser]fesweb[/eluser]
You are passing a string into the date() function, which requires a timestamp, or at least a number. Plus your unix timestamp is 3 digits too long.

Code:

'valid_from'=>date('Y-m-d H:i:s','1299762201428')
// should be more like this...
'valid_from'=>date('Y-m-d H:i:s', 1299762201) // no quotes
// or...
'valid_from'=>date('Y-m-d H:i:s', strtotime('2009-02-01'))