Having a hard time with this one. I have a multi-dim array $foo[$x][$y]['key'], where $x and $y are numeric. Here is some sample data :
Array (
[$x] => Array
(
[0] => Array
(
[invoiceid] => 11842
[product] => myproduct
[domain] => foo.net
[expires] => February 28, 2004
) [1] => Array
(
[invoiceid] => 10295
[product] => myotherproduct
[domain] => foo.net
[expires] => December 9, 2003
) [2] => Array
(
[invoiceid] => 10202
[product] => product1
[domain] => foo.bar
[expires] => January 19, 2003
) [3] => Array
(
[invoiceid] => 10005
[product] => product2
[domain] => foo.bar
[expires] => December 11, 2002
)) )
I need to filter the results so that I get the latest expiry date for each product. The expires field actually contains a timestamp. So for the sample array above, the resultant array would have only keys 0 and 2, filtering out all the rest. There are around 180+ main entries, with any number of sub entries, but each sub entry has the same four keys.
Any ideas? Getting a rather large headache mulling over this.
Thanks again, Burhan
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