PHP 5.2. Calculating percentage using largest remainder method (bit tricky)

percentage.php

<?php

function calculate_percentage($aw,$tp=0,$t=0){
    foreach($aw as $a) $t += $a['votes'];
    foreach($aw as &$a)$tp += floor($a['percentage'] = $a['votes'] / $t * 100);
    uasort($aw, 'sort_by_remainder');
    foreach ($aw as &$v) $v['percentage'] = ($tp++ < 100) ? ceil($v['percentage']) : floor($v['percentage']);
    ksort($aw);
    return $aw;
}

function sort_by_remainder($a, $b){
    return $a['percentage']-floor($a['percentage']) < $b['percentage']-floor($b['percentage']);
}

var_dump(calculate_percentage(array(
    array('title'=>'Meh1','votes'=>1),
    array('title'=>'Meh2','votes'=>2),
    array('title'=>'Meh3','votes'=>3),
    array('title'=>'Meh4','votes'=>44)
)));