Online PHP editor | refs for DDsuL

<?php $array = [ ["name" => "Gus", "age" => 32], ["name" => "Jon", "age" => 44], ["name" => "Bob", "age" => 32], ["name" => "Jim", "age" => 103], ["name" => "Ted", "age" => 19], ["name" => "Ben", "age" => 32], ]; foreach ($array as &$row) { $row['order'] = &$ref[$row['age']]; } var_export($array);