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PHP

Oliver Chalk
Oliver Chalk
3,615 Points
Posted by Oliver Chalk
Oliver Chalk
3,615 Points

Understanding the interaction that is occurring in this array.

On the last code challenge of this particular course the following code was used to insert information about genre into an existing array. I fail to understand how the parts of the array are being selected. i.e. $item['genres'] selects the item array and the key of 'genres'. Now this could contain another array, however, I don't see what function the $row variable performs in selecting a further part of the array?

<?php

include "helper.php";

/*
* helper contains the following variables:
* $item is an array that contains details about the library item
* $results is a PDOstatement object with our genre results.
*/

while($row = $results->fetch(PDO::FETCH_ASSOC)) {

   $item["genres"][ $row["genre_id"]] = $row["genre"];

}