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Start your free trialJosh Foster
8,896 PointsI can't understand how to create $item["genres"].
I can't understand how to create the internal array $item["genres"]. Do I define it as an empty array before looping through $items, and then assign new "genre_id" and "genre" values each time? I'm utterly confused about this. I have tried a combination of things, including something closely resembling the lesson example: while($row = $results->fetch(PDO::FETCH_ASSOC)){ $item[$row["genre_id"]][] = $row["genre"]; } but I don't understand how to create a specific "genres" internal array using the above method.
<?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.
*/
1 Answer
Filipe Pacheco
Full Stack JavaScript Techdegree Student 21,416 PointsHi, Josh Foster, you almost got it right.
As it is said in the description, there is already an $item array. It asks to loop through the $results and add an internal array with the genre_id as key and genre as value. It would be something like this:
$item = [
"genres" => [
"genre_id" => "genre"
]
];
or
$item["genres"] = [
"genre_id" => "genre"
];
or
$item["genres"]["genre_id"] = ["genre"];
The exercise says we already have the "genres" in the item array, so now we need to loop through $results and add the "genre_id" and "genre" to it. You will need a while loop, almost as you tried, but using the last example I gave.
while ($row = $results->fetch(PDO::FETCH_ASSOC)) {
$item["genres"][$row["genre_id"]] = $row["genre"];
}