Re: Basic Dual Query Combine into one question

dealTek wrote: > function cmp($a, $b) > { > $result = strcmp( > > // !!!!!! errors ???? how do I fix? > $a->strtotime(getField('Test_Date')), > $b->strtotime(getField('Test_Date')) > ); Others have already pointed out that strtotime() is a function and not a method. I suggest that you learn the basics of object oriented programming in PHP[2], even if you don't plan to write your own classes. Furthermore it seems to be noteworthy that strtotime() parses strings in the format 01/02/2015 as American dates, i.e. as Jan. 2, 2015.[1] If you have to deal with European dates (d/m/Y), you would have to prepare the date string before passing it to strtotime(). Regarding the sorting: you don't want to to strcmp() the results of strtotime(), because the results are numbers. The simplest and most efficient solution is to subtract these numbers: $result = strtotime($a->getField('Test_Date')) - strtotime($b->getField('Test_Date')); [1] <http://php.net/manual/en/language.oop5.php> [2] <http://php.net/manual/en/function.strtotime.php#refsect1-function.strtotime-notes> -- Christoph M. Becker