Sample Date Diff
01.<?php02.function DateDiff($strDate1,$strDate2)03.{04.return (strtotime($strDate2) - strtotime($strDate1))/ ( 60 * 60 * 24 ); // 1 day = 60*60*2405.}06.function TimeDiff($strTime1,$strTime2)07.{08.return (strtotime($strTime2) - strtotime($strTime1))/ ( 60 * 60 ); // 1 Hour = 60*6009.}10.function DateTimeDiff($strDateTime1,$strDateTime2)11.{12.return (strtotime($strDateTime2) - strtotime($strDateTime1))/ ( 60 * 60 );// 1 Hour = 60*6013.}14. 15.echo "Date Diff = ".DateDiff("2008-08-01","2008-08-31")."<br>";16.echo "Time Diff = ".TimeDiff("00:00","19:00")."<br>";17.echo "Date Time Diff = ".DateTimeDiff("2008-08-01 00:00","2008-08-01 19:00")."<br>";18.?>Screenshot
เครดิต:http://www.thaicreate.com/php/php-date-diff.html
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