Get date for monday and friday for the current week (PHP)

Question

How can I get the date for monday and friday for the current week?

I have the following code, but it fails if current day is sunday or saturday.

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Answer 1

I was looking for a similar thing, except I wanted any Monday, not just this week. This is what I came up with:

function getSunday(DateTime $date){
    $outdate = clone($date);
    $day = $date->format("w");  // get the weekday (sunday is 0)
    $outdate->sub(new DateInterval("P".$day."D")); // subtracting the weekday from the date always gives Sunday 
    return $outdate;
}

It accepts an arbitrary date and gives the Sunday. Then you can easily add back days to get Monday through Saturday.

Answer 2

This question needs a DateTime answer:-

/**
 * @param String $day
 * @return DateTime
 */
function getDay($day)
{
    $days = ['Monday' => 1, 'Tuesday' => 2, 'Wednesday' => 3, 'Thursday' => 4, 'Friday' => 5, 'Saturday' => 6, 'Sunday' => 7];

    $today = new \DateTime();
    $today->setISODate((int)$today->format('o'), (int)$today->format('W'), $days[ucfirst($day)]);
    return $today;
}

Usage:

var_dump(getDay('Monday')->format('l dS F Y'));
var_dump(getDay('Friday')->format('l dS F Y'));

Output:

string 'Monday 30th September 2013' (length=26)
string 'Friday 04th October 2013' (length=24)

See it working

Answer 3

I needed a definition of the current week per ISO 8601. I want Monday to always be defined as the Monday that started this current week.

The following solution works excellent for me:

$monday = strtotime(date('o-\WW'));
$friday = strtotime("next friday",$monday);

For $monday, this method will always return the Monday that started this calendar week. unfortunately, this method relies on PHP 5.1 to parse the o date format.

To get any day of the week, you could try:

function time_for_week_day($day_name, $ref_time=null){
    $monday = strtotime(date('o-\WW',$ref_time));
    if(substr(strtoupper($day_name),0,3) === "MON")
        return $monday;
    else
        return strtotime("next $day_name",$monday);
}

Usage:

time_for_week_day('wednesday');
time_for_week_day('friday',strtotime('2014-12-25'));

Answer 4

Best solution would be:

$monday = date( 'Y-m-d', strtotime( 'monday this week' ) );
$friday = date( 'Y-m-d', strtotime( 'friday this week' ) );

Answer 5

i use :

$first_week_date = date('d F Y', strtotime('next Monday -1 week', strtotime('this sunday')));
$last_week_date = date('d F Y', strtotime('next Monday -1 week + 4 days', strtotime('this sunday')));

Answer 6

These strtotime inputs work very well:

strtotime( "next monday" );
strtotime( "previous monday" );
strtotime( "today" );
strtotime( "next friday" );
strtotime( "previous friday" );

All you need to do is to wrap the logic inside some if statements.