get startdate and enddate for current quarter php

Question

I am trying to set a start date and end date by the quarter.

For example, I am working on a reporting system where i need to report data for quarter 1, quarter 2, qu

Answer 1

This was my solution.

function getCurrentQuarter($timestamp=false){
    if(!$timestamp)$timestamp=time();
    $day = date('n', $timestamp);
    $quarter = ceil($day/3);
    return $quarter;
}

function getPreviousQuarter($timestamp=false){
    if(!$timestamp)$timestamp=time();
    $quarter = getCurrentQuarter($timestamp) - 1;
    if($quarter < 0){
        $quarter = 4;
    }
    return $quarter;
}

function getNextQuarter($timestamp=false){
    if(!$timestamp)$timestamp=time();
    $quarter = getCurrentQuarter($timestamp) + 1;
    if($quarter > 4){
        $quarter = 0;
    }
    return $quarter;
}

function getFirstAndLastDayOfQuarter($quarter, $year=false){
    if(!$year)$year=date('Y');
    $startDate = new DateTime($year.'-'.($quarter*3-2).'-1');
    //Get first day of first month of next quarter
    $endMonth = $quarter*3+1;
    if($endMonth>12){
        $endMonth = 1;
        $year++;
    }
    $endDate = new DateTime($year.'-'.$endMonth.'-1');
    //Subtract 1 second to get last day of prior month
    $endDate->sub(new DateInterval('PT1S'));
    return array($startDate, $endDate);
}

Answer 2

A versatile version would be:

    $date = new DateTime(/* you may insert a date here, else its now */);
    //$date->modify('-3 months'); // you may want last quarter or any other modifcation
    $quarter = ceil($date->format('n')/3);

    $start = new DateTime();
    $start->setDate($date->format('Y'), (($quarter*3)-2), 1)->setTime(0, 0, 0, 0);

    $end = new DateTime();
    $end->setDate($date->format('Y'), ($quarter*3), 1);
    $end->setDate($date->format('Y'), ($quarter*3), $end->format('t'))->setTime(0, 0, 0, 0);

    echo $start->format('Y-m-d');
    echo $end->format('Y-m-d');

this is simple yet effective. It let's you choose the input date and make relative adaptions with modify.

Answer 3

You can simply this greatly using basic math.

Each Month number minus 1 % 3 will tell how many months you are offset from the current quarter..

/**
 * @param DateTime $date
 * @return array
 */
function getQuarterRangeFromDate(DateTime $date)
{

    // Clone the date to avoid modifying your date in current context
    $quarter_start = clone($date);

    // Find the offset of months
    $months_offset = ($date->format('m') - 1) % 3;


    // Modify quarter date
    $quarter_start->modify(" - " . $months_offset . " month")
        ->modify("first day of this month");


    $quarter_end = clone($quarter_start);
    $quarter_end->modify("+ 3 month");

    return [$quarter_start, $quarter_end];
}

Answer 4

Try to use DateTime function. For your example, is look like:

case 'this_month':
    $start_date = new DateTime('first day of this month');
    $end_date = new DateTime('last day of this month');
break;
case 'last_month':
    $start_date = new DateTime('first day of next month');
    $end_date = new DateTime('last day of next month');
break;

echo $start_date->format(DATE_FORMAT);
echo $end_date->format(DATE_FORMAT);

And if you want to get the first and last days of quarter, try to use:

 $start_date = new DateTime('first day of January');
 $end_date = new DateTime('last day of March');

 echo $start_date->format(DATE_FORMAT);
 echo $end_date->format(DATE_FORMAT);

Or use function strtotime. Example with strtotime:

$quarter_start = strtotime('first day of January');
$quarter_end = strtotime('last day of March');

echo date(DATE_FORMAT, $quarter_start);
echo date(DATE_FORMAT, $quarter_end);

Answer 5

Just wanted to point SynaTree's solution doesn't work for every last 3rd month in quarter.

Here's a modified solution using DateTime.

$now = new DateTimeImmutable();
$offset = ($now->format('n') - 1) % 3;
$start = $now->modify("first day of -{$offset} month midnight");
$endExcluded = $start->modify("+3 month");
$endIncluded = $start->modify("+3 month -1 second");

$endExcluded works well when for DatePeriod loops, where the end date is excluded when time is 00:00:00.

Answer 6

/**
* Compute the start and end date of some fixed o relative quarter in a specific year.
* @param mixed $quarter  Integer from 1 to 4 or relative string value:
*                        'this', 'current', 'previous', 'first' or 'last'.
*                        'this' is equivalent to 'current'. Any other value
*                        will be ignored and instead current quarter will be used.
*                        Default value 'current'. Particulary, 'previous' value
*                        only make sense with current year so if you use it with
*                        other year like: get_dates_of_quarter('previous', 1990)
*                        the year will be ignored and instead the current year
*                        will be used.
* @param int $year       Year of the quarter. Any wrong value will be ignored and
*                        instead the current year will be used.
*                        Default value null (current year).
* @param string $format  String to format returned dates
* @return array          Array with two elements (keys): start and end date.
*/
public static function get_dates_of_quarter($quarter = 'current', $year = null, $format = null)
{
    if ( !is_int($year) ) {        
       $year = (new DateTime)->format('Y');
    }
    $current_quarter = ceil((new DateTime)->format('n') / 3);
    switch (  strtolower($quarter) ) {
    case 'this':
    case 'current':
       $quarter = ceil((new DateTime)->format('n') / 3);
       break;

    case 'previous':
       $year = (new DateTime)->format('Y');
       if ($current_quarter == 1) {
          $quarter = 4;
          $year--;
        } else {
          $quarter =  $current_quarter - 1;
        }
        break;

    case 'first':
        $quarter = 1;
        break;

    case 'last':
        $quarter = 4;
        break;

    default:
        $quarter = (!is_int($quarter) || $quarter < 1 || $quarter > 4) ? $current_quarter : $quarter;
        break;
    }
    if ( $quarter === 'this' ) {
        $quarter = ceil((new DateTime)->format('n') / 3);
    }
    $start = new DateTime($year.'-'.(3*$quarter-2).'-1 00:00:00');
    $end = new DateTime($year.'-'.(3*$quarter).'-'.($quarter == 1 || $quarter == 4 ? 31 : 30) .' 23:59:59');

    return array(
        'start' => $format ? $start->format($format) : $start,
        'end' => $format ? $end->format($format) : $end,
    );
}

I develop this function to deal with quarter in any way: relative (this, previous, first, last) and fixed.

Examples:

get_dates_of_quarter();
//return current quarter start and end dates

get_dates_of_quarter(2);
//return 2nd quarter start and end dates of current year

get_dates_of_quarter('first', 2010, 'Y-m-d');
//return start='2010-01-01' and end='2014-03-31'

get_dates_of_quarter('current', 2009, 'Y-m-d');
//Supposing today is '2014-08-22' (3rd quarter), this will return
//3rd quarter but of year 2009.
//return start='2009-07-01' and end='2009-09-30'

get_dates_of_quarter('previous');
//Supposing today is '2014-02-18' (1st quarter), this will return
//return start='2013-10-01' and end='2013-12-31'

Waiting this help someone ;)