Solved getOnlinePlayers undef offset

PHP:

$pc = count($this->getServer()->getOnlinePlayers());
$arr = $this->getServer()->getOnlinePlayers();
//while loop
    $pc--;
    $play = $arr[$pc];
    $name = $arr[$pc]->getName();


Problem: Undefined offset (Numofplayers - 1), call to member function getName()

I've done a var dump and $arr does contain $pc online and does contain player object

Oh this is an async task calling this function.

Notice: Undefined offset: 0 in C:\Users\Jamie\Desktop\PocketMine-MP\plugins\MPFacPLUG\src\MPFac\MPFac.php on line 505
[11:31:42] [Server thread/CRITICAL]: Could not execute task MPFac\Timer: Call to a member function getName() on null
[11:31:42] [Server thread/CRITICAL]: Error: "Call to a member function getName() on null" (EXCEPTION) in "/MPFacPLUG/src/MPFac/MPFac" at line 506

If it is in another class you can try instead of $this-> $this->getOwner ()

That just crashes it onload