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);
}