How to find the last day of the month from date?

Question

How can I get the last day of the month in PHP?

Given:

$a_date = \"2009-11-23\"

I want 2009-11-30; and given

$a_dat         


        

Answer 1

You can use "t" in date function to get the number of day in a particular month.

The code will be something like this:

function lastDateOfMonth($Month, $Year=-1) {
    if ($Year < 0) $Year = 0+date("Y");
    $aMonth         = mktime(0, 0, 0, $Month, 1, $Year);
    $NumOfDay       = 0+date("t", $aMonth);
    $LastDayOfMonth = mktime(0, 0, 0, $Month, $NumOfDay, $Year);
    return $LastDayOfMonth;
}

for($Month = 1; $Month <= 12; $Month++)
    echo date("Y-n-j", lastDateOfMonth($Month))."\n";

The code is self-explained. So hope it helps.