Question

I have an array which is converted to string and it looks like this: 00:00,05:00,10:00,15:00,20:00 it shows hours range every 5 hours,
I want to display my string like this , , , ,5:00, , , , ,10:00, , , , ,15:00, , , , ,20:00, , , ,
so display it every 5 hours but hours that are not needed i want to set empty,

code:

    $date = new \DateTime("12:00am");
    $dv = new \DateInterval('PT5H');
    $totalInterval = 4 ; 
    $dr = array();
    $date->format('H:i');
    for($i = 0; $i < $totalInterval; $i++)
    {

        $dr[] = $date->format('H:i');
        $date->add($dv);

    }
    $dr[] = $date->format('H:i');   
    $dr = implode (',', $dr); 

How would I do that ?

Answer 1

$dr = ' , , , ,' . implode (', , , , ,', $dr) . ', , , , ';