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1 Answer
![Simon Coates](https://secure.gravatar.com/avatar/9c452f3f160ef69f85f1ff042db63980?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Simon Coates
28,694 Points$output[$id] = $sort; This line sets a key with the value of $id (whatever that is) on the $array to the value of $sort. For instance, if i run:
<?php
$output = [];
$id = "an index";
$sort = "being used as a value";
$output[$id] = $sort;
var_dump($output);
The output is:
array(1) {
["an index"]=>
string(21) "being used as a value"
}