Online PHP editor | output for O3TcD

<?php $current = array( 750 => 2, 1000 => 1.3 2000 => 1.2 3000 => 1.1 4000 => 1.0 5000 => 0.9 6000 => 0.8 10000 => 0.75 ); function update($current) { $tiers = array( 0 => 3.5, 250 => 3.5, 500 => 3.5, 750 => 3, ); krsort($current); $prev = 0; foreach($current as $range => $spread) { if ( $range < 1000 ) continue; if ( $range >= 1000 && $range <= 5000 && $spread <= 1.1 ) $spread += 0.4; $prev = $tiers[$range] = max($spread, $prev); } ksort($tiers); return $tiers; } var_dump($current); var_dump(update($current));