To customize date and time PHP provides us some important functions such date, strtotime and mktime. In this post i will demonstrate some usages for these

functions.

Example 1:

Get year start and end date for the current year we can use

$yearStart = date("Y-m-d", strtotime('this year January 1st'));

$yearEnd = date("Y-m-d", strtotime("this year December 31st"));

Example 2:

Get month start and end date for the current month

$monthStart = date("Y-m-d", strtotime('first day of this month'));
$monthEnd = date("Y-m-d", strtotime("last day of this month"));

Example 3:

Get previous month start and end date

$lastMonthStart = date("Y-m-d", strtotime('first day of last month'));
$lastMonthEnd = date("Y-m-d", strtotime("last day of last month"));

Example 4:

Get week start and end date

$weekStart = date("Y-m-d", strtotime('monday this week'));
$weekEnd = date("Y-m-d", strtotime("sunday this week"));

Example 5:

get the first and last days of a given month

$query_date = '2010-02-04';
echo date('Y-m-01', strtotime($query_date));
echo date('Y-m-t', strtotime($query_date));

Example 6:

Displaying the list of months using mktime for the year 

for ($m=1; $m<=12; $m++) {
 $month = date('F', mktime(0,0,0,$m, 1, date('Y')));
 echo $month;
}

Example 7:

run foreach loop between 2 given dates

$begin = new DateTime( '2010-05-01' );
$end = new DateTime( '2010-05-10' );
$interval = DateInterval::createFromDateString('1 day');
$period = new DatePeriod($begin, $interval, $end);

foreach ($period as $dt){
  echo $dt->format( "l Y-m-d H:i:s\n" );
}

Tags : PHP,