Online PHP editor | refs for 16Q2f

<?php $data = array( array('id' => 1, 'name' => 'John Snow', 'score' => 80), array('id' => 2, 'name' => 'John Fire', 'score' => 50), array('id' => 3, 'name' => 'John Water', 'score' => 79), array('id' => 4, 'name' => 'John Leaf', 'score' => 80), ); $scores = array(); foreach ($data as $v) $scores[$v['score']] = 1; // sort by keys krsort($scores); // assign proper ranks to each score $rank = 1; foreach ($scores as &$v) $v = $rank++; // assign ranks foreach ($data as &$v) $v['rank'] = $scores[$v['score']]; print_r($data);