Online PHP editor | refs for Y6OKk

<?php $arr = array( Array ( "0" => "sue", "1" => "salem", "2" => 30 ), Array ( "0" => "bob", "1" => "salem", "2" => 10 ), Array ( "0" => "sue", "1" => "benton", "2" => 2 ), Array ( "0" => "bob", "1" => "benton", "2" => 30 )); $keys = ["name", "locn", "sales"]; Foreach($arr as &$subarr){ $res[$subarr[1]][] = array_combine($keys, $subarr); } $prev_city =""; foreach($res as $city => $sales_array){ echo 'LOCN: ' . $city . " <br>\n"; foreach($sales_array as $sales){ echo ' NAME: ' . $sales['name'] . ' - ' . $sales['sales'] . " <br>\n"; } echo "<br>\n"; }