Online PHP editor | refs for 6FLr0

<?php $json = '[ {name: "KFC", distance: 17, likes: 3}, {name: "Macdonalds", distance: 2, likes: 9}, {name: "Pizza Hut", distance: 9, likes: 12}, {name: "Burger King", distance: 14, likes: 17} ]'; $json = preg_replace('/(\w+)(?=:)/', '"$1"', $json); $restaurants = json_decode($json, true); function get_rating($restaurant, $weights) { $rating = 0; foreach ($weights as $factor => $weight) { $rating += $weight * $restaurant[$factor]; } return $rating; } $weights = array('distance' => -30, 'likes' => 10); usort($restaurants, function ($a, $b) use ($weights) { return get_rating($b, $weights) - get_rating($a, $weights); }); print_r($restaurants);