检查两个日期之间的日期-PHP

Question

I want to check a certain date that is stored in my DB, if this date is during this fiscal year it prints valid if it is not it prints invalid

here is my php code:

$init_date= date("2016/07/01");
$end_date= date("2017/06/30");
$i_date = strtotime($init_date);
$e_date = strtotime($end_date);
$date_db= strtotime($date);// this $date is retrieved from my DB
if ($e_date > $date_db && $i_date < $date_db) 
     { echo "valid";}
else { echo "invalid";}

but the problem is that i don't want to set the start and the end dates manually, is there a way to make it dynamic? as it will be updated every year

Answer 1

Try this,

<?php
$start_date = date('Y-m-d', strtotime(str_replace("/", "-", $initdate)));
$end_date   = date('Y-m-d', strtotime(str_replace("/", "-", $end_date)));
$new_date   = date('Y-m-d', strtotime(str_replace("/", "-", $date)));
 if (($start_date < $new_date && $new_date < $end_date) || ($end_date < $new_date && $new_date < $start_date)) {
    echo "valid";
} else {
    echo 'invalid';
}

Here is working link

Answer 2

This way your script will be a bit more dynamic .

// the below snippet checks the date retrieved from database
// against fiscal periods between years 2000 and 2050 and return the 
// valid dates
$endYear=2000;
while($endYear<=2050) {
$end = $endYear.'/06/30';
$endDate = DateTime::createFromFormat('Y/m/d', $end);
$initDate = DateTime::createFromFormat('Y/m/d', $end);
$initDate = $initDate->sub(new DateInterval('P1Y'))->add(new DateInterval('P1D'));
$ddb = '2016-09-27';
$dateFrodDB = DateTime::createFromFormat('Y-m-d', $ddb);
if ($dateFrodDB>=$initDate && $dateFrodDB<=$endDate) 
     { echo "valid\n";
         echo "\tStartDate->\"".$initDate->format("Y-m-d")."\"\n";
         echo "\tEndDate->\"".$endDate->format("Y-m-d")."\"\n";
         echo "\tDateFromDatabase->\"".$dateFrodDB->format("Y-m-d")."\"\n";
     }
$endYear++;
}

/* output
   valid
        StartDate->"2016-07-01"
        EndDate->"2017-06-30"
        DateFromDatabase->"2016-09-27"
*/

check this on PHP Sandbox