Find out all possible date combination between two dates in php or sql.

After calculating the difference number of days in 2 days by using the function and by division as advised by our friends Mr.Imran and Mr.saleem.

You can simply find the factorial value of that number. put it in two loops and can simply print all you possible events. Cause maximum possible events are factorial of the difference of no. of days in dates.

for ex. no of days in diff is 5. you can start date and end date, put them in loop like

for (i =1 , i<=5; i++)

{ for (j= i; j <=5; j++)

     print your combinations here

      startdate, enddate=startdate+j;

   }

   startdate = startdate + i;

}

 I'm out of touch with syntaxes, so simply writing the algorithm, so it should work to get the required possible combinations. Thanks.

<?php

In this example you have a new function that calculates difference in number seconds between 2 textual dates supplied as arguments. Later finds days between suypplied 2 dates and are printed out. e.g. dates from July 20, 2016 to July 27, 2016.

<?php    $diff = diff_seconds("July 20, 20169:30PM", "July 27, 20169:35PM");    print_r($diff);    function diff_seconds($date1, $date2)    {        $date1 = strtotime($date1);        $date2 = strtotime($date2);        $st = $date1 < $date2 ? $date1 : $date2;                $to = $st+abs($date1-$date2);        $ret = Array();        while ($st < $to)        {            $ret []= date("F d Y", $st); //change format to yours            $st += 3600 * 24; //one day # of seconds        }

        return $ret;    }           

---- the output of program is

Array(    [0] => July 202016    [1] => July 212016    [2] => July 222016    [3] => July 232016    [4] => July 242016    [5] => July 252016    [6] => July 262016    [7] => July 272016)

I dont have idea about what is php and sql

Start date and end date is requied for proper plan to make necessary calculation

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Start date and end date is required to make plan and to track the activities movement and to check where we are and posibilities and to take further actions

i dont know about php or sql

Date start and end date may required to develop plan & to track the activities, to determine where we are, either required to take any action. 

Starting date and end date helps you to track the good and bad job end of production incase there is minor mistakes