note 110381 added to function.mktime

I do a lot of work using dates and times. I use mktime() a lot. One wee word of caution over excessive use of incrementing the day parameter. Something I do quite a lot and works great for reasonable ranges. I recently found, however, that the function gave erroneous results when too many days were added (i.e. around 6 months worth). Changed to using mktime for the basic date then adding the required seconds to the integer datetime value. e.g. instead of for ($i=0; $i<$no_of_four_week_periods,$i++) { $curdatetm = mktime(0,0,0,4,(1+($i*28)),$curyr); } .. try something like .. $basedatetm = mktime(0,0,0,4,1,$curyr); for ($i=0; $i<$no_of_four_week_periods,$i++) { $cudatetm = $basedatetm + ($i*28*24*60*60); } cheers ---- Server IP: 87.124.126.49 Probable Submitter: 193.63.62.188 ---- Manual Page -- http://www.php.net/manual/en/function.mktime.php Edit -- https://master.php.net/note/edit/110381 Del: integrated -- https://master.php.net/note/delete/110381/integrated Del: useless -- https://master.php.net/note/delete/110381/useless Del: bad code -- https://master.php.net/note/delete/110381/bad+code Del: spam -- https://master.php.net/note/delete/110381/spam Del: non-english -- https://master.php.net/note/delete/110381/non-english Del: in docs -- https://master.php.net/note/delete/110381/in+docs Del: other reasons-- https://master.php.net/note/delete/110381 Reject -- https://master.php.net/note/reject/110381 Search -- https://master.php.net/manage/user-notes.php