PHP excludes weekends and Holidays program instance code

PHP tutorial excludes weekends and Holidays program instance code


date_default_timezone_set (' PRC ');


/**


* The date after a certain number of days from a date,


* excludes Saturday Sundays and holidays


* @param $start start date


* @param $offset after days


* @param $exception exceptional Holiday


* @param $allow allowed dates (reservation parameters)


* @return


* Examples: input (2010-06-25, 5, '), get 2010-07-02


*/


function getendday ($start = ' Now ', $offset =0, $exception = ', $allow = ') {


///First calculation does not exclude the results of the Saturday Sundays and holidays


$starttime = Strtotime ($start);


$endtime = $starttime + $offset * 24 * 3600;


$end = Date (' y-m-d ', $endtime);


//Then calculates the offset caused by Sunday Saturday


$weekday = Date (' n ', $starttime);//Get Week value: 1-7


$remain = $offset% 7;


$newoffset = 2 * ($offset-$remain)/7;//to be recalculated for two days every week


if ($remain > 0) {//Zhou Yu rounding


$tmp = $weekday + $remain;


if ($tmp >= 7) {


$newoffset + 2;


}else if ($tmp = = 6) {


$newoffset + 1;


        }


//Consideration of current situation for Saturday Sunday


if ($weekday = = 6) {


$newoffset-= 1;


}else if ($weekday = = 7) {


$newoffset-= 2;


        }


    }


//Recalculate holiday-induced offsets


if (Is_array ($exception)) {//Multiple holidays


foreach ($exception as $day) {


$tmp _time = Strtotime ($day);


if ($tmp _time> $starttime && $tmp _time<= $endtime) {//within range (A,B)


$weekday _t = Date (' n ', $tmp _time);


if ($weekday _t <= 5) {//Prevent recurring holidays and weekends


$newoffset + 1;


                }


            }


        }


}else{//Single Holiday


if ($exception!= ') {


$tmp _time = Strtotime ($exception);


if ($tmp _time> $starttime && $tmp _time<= $endtime) {


$weekday _t = Date (' n ', $tmp _time);


if ($weekday _t <= 5) {


$newoffset + 1;


                }


            }


        }


       


    }


///based on the number of offset days, recursive equivalent operations jzread.com


if ($newoffset > 0) {


#echo ' [{$start}-> {$offset}] = [{$end}-> {$newoffset}] '. <br/>n ";


return Getendday ($end, $newoffset, $exception, $allow);


}else{


return $end;


    }


}


/**


* Violence Cycle method


*/


function getendday2 ($start = ' Now ', $offset =0, $exception = ', $allow = ') {


$starttime = Strtotime ($start);


$tmptime = $starttime + 24*3600;


   


while ($offset > 0) {


$weekday = Date (' n ', $tmptime);


$tmpday = Date (' y-m-d ', $tmptime);


$BFD = false;//whether holiday


if (Is_array ($exception)) {


$BFD = In_array ($tmpday, $exception);


}else{


$BFD = ($exception = = $tmpday);


        }


if ($weekday <=5 &&! $bfd) {//not weekends and holidays


$offset-;


#echo "tmpday={$tmpday}". <br/> ";


        }


$tmptime + + 24*3600;


}


   


return $tmpday;


}


$exception = Array (


' 2010-01-01 ', ' 2010-01-02 ', ' 2010-01-03 ',


' 2010-04-03 ', ' 2010-04-04 ', ' 2010-04-05 ',


' 2010-05-01 ', ' 2010-05-02 ', ' 2010-05-03 ',


' 2010-06-14 ', ' 2010-06-15 ', ' 2010-06-16 ',


' 2010-09-22 ', ' 2010-09-23 ', ' 2010-09-24 ',


' 2010-10-01 ', ' 2010-10-02 ', ' 2010-10-03 ', ' 2010-10-04 ',


' 2010-10-05 ', ' 2010-10-06 ', ' 2010-10-07 ',


   


);


//echo getendday (' 2010-08-27 ', 3, ');


//echo getendday (' 2010-06-25 ', 15, ' 2010-07-07 ');


$t 1 = microtime ();


echo getendday (' 2010-05-12 ', A, $exception). " <br/> ";


$t 2 = Microtime (); echo "Use". ($t 2-$t 1). " s <br/> ";


echo getendday2 (' 2010-05-12 ', A, $exception). " <br/> ";


$t 3 = Microtime (); echo "Use". ($t 3-$t 2). " s <br/> ";