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Hi, I have the following array and would like to loop through it and check if there are duplicate catalogIDs, if yes, I would like to compare the dates and choose the earliest date. In the following array: catalogID 1257 is there two times. I need earliest date, which is 2013-09-03 catalogID 1340 is there three times. I need earliest date, which is 2013-09-04 Array ( [0] => 1159, 2013-09-03 [1] => 1157, 2013-09-03 [2] => 1257, 2013-09-03 [3] => 1257, 2013-09-13 [4] => 1340, 2013-09-04 [5] => 1335, 2013-09-03 [6] => 1340, 2013-09-13 [7] => 1410, 2013-09-03 [8] => 1340, 2013-09-18 ) Is it easier to add all the unique catalogIDs with the earliest date to a new array or remove the duplicate catalogIDs with the late dates from the current array? I have tried a foreach loop and a for loop with counter but I'm not able to do this. Any ideas? Thanks!
