# Calculate the difference between two dates: year, month, and day

Source: Internet
Author: User
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Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn to calculate the difference between the two dates: year, month, and day.
Year, month, and day

DiffDate ("2011-01-06", "2015-06-16 "); `/**+ ----------------------------------------------------------* Function: calculate the difference between two dates: year, month, and day.+ ----------------------------------------------------------* @ Param date \$ date1 start date* @ Param date \$ date2 end date+ ----------------------------------------------------------* @ Return array+ ----------------------------------------------------------*/Function DiffDate (\$ date1, \$ date2 ){If (strtotime (\$ date1)> strtotime (\$ date2 )){\$ Ymd = \$ date2;\$ Date2 = \$ date1;\$ Date1 = \$ ymd;}List (\$ y1, \$ m1, \$ d1) = explode ('-', \$ date1 );List (\$ y2, \$ m2, \$ d2) = explode ('-', \$ date2 );\$ Y = \$ m = \$ d =\$ _ m = 0;\$ Math = (\$ y2-\$ y1) * 12 + \$ m2-\$ m1; // The total number of months for difference\$ Y = round (\$ math/12); // year of difference\$ M = intval (\$ math % 12); // number of different months\$ Mm = \$ math; // The total number of different months\$ D = (mktime (0, 0, 0, \$ m2, \$ d2, \$ y2)-mktime (0, 0, 0, \$ m2, \$ d1, \$ y2 )) /86400;If (\$ d <0 ){\$ M-= 1;\$ D + = date ('J', mktime (0, 0, 0, \$ m2, 0, \$ y2 ));}\$ M <0 & \$ y-= 1;Return array (\$ y, \$ m, \$ d, \$ mm );}`Calculated by day, hour, and second `\$ One = strtotime ('2017-12-08 07:02:40 '); // start time stamp\$ Tow = strtotime ('2017-12-25 00:00:00 '); // End Time Stamp\$ Cle = \$ tow-\$ one; // get the timestamp difference/* This is just a promptEcho floor (\$ cle/60); // returns the total number of minutesEcho floor (\$ cle/3600); // calculates the total number of hoursEcho floor (\$ cle/3600/24); // returns the total number of days*//* Rming () function, that is, the Rounding Method */\$ D = floor (\$ cle/3600/24 );\$ H = floor (\$ cle % (3600*24)/3600); // % obtain the remainder\$ M = floor (\$ cle % (3600*24) % 3600/60 );\$ S = floor (\$ cle % (3600*24) % 60 );Echo "two time differences \$ d days \$ h hours \$ m minutes \$ s seconds"`

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