Function returns decimal player slot for $player_slot returned by DOTA2 WebAPI. $player_slot∈(0, 4)∪(128, 132) result∈(0, 9)

determine_playerslot.php

<?php

function determine_playerslot($player_slot)
{
	$binary = sprintf('%08b', $player_slot);
	$team   = substr($binary, 0, 1);
	$slot   = bindec(substr($binary, 1));
    
    return $team * 5 + $slot;
}