Question

I have an array as follows:

$players = array(
    $player = array(
        'name'          => 'playername',
        'speed'         => '10',
        'agility'       => '10',
        'influence'     => '10'
    )
    etc

Then I calculate a $score, based on the sum of speed, agility and influence.

$score = $p['speed'] + $p['agility'] + $p['influence'];

How can I loop through my array, but order the results from highest to lowest $score?

PS-> http://pastebin.com/eUEQ5y4u

Answer 1

You can use usort function to sort it by your custom algorithm:

function score($player) {
    return $player['speed'] + $player['agility'] + $player['influence'];
}

function cmp($a, $b) {
    $scoreA = score($a);
    $scoreB = score($b);
    if($scoreA == $scoreB) {
        return 0;
    }
    return ($scoreA > $scoreB) ? -1 : 1;
}

usort($players, "cmp");