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PHP Integrating PHP with Databases Using Relational Tables Fetching Many Relationships

preview not working

in the task i am busy with, i am trying to view the structures of the arrays in question, but when i var_dump or print_r the array's and then click on the preview i get a white screen below Index.php.

the question i believe is also fairly vague.

$item is an array that contains details about the media item. $results is a PDOstatement object with our genre results. Loop through the $results and add an additional "genres" element to $item. This "genres" element should have an internal associative array with the key of genre_id and the value of genre. Example $item array: array(8) { ... ["genres"]=> array(2) { [3]=> string(6) "Comedy" [16]=> string(6) "Sci-Fi" } }

index.php
<?php

include "helper.php";
print_r($item)
/*
 * 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.
 */
Alena Holligan
Alena Holligan
Treehouse Teacher

I was able to fix the preview issue, and updated the verbiage slightly. Let me know if you have any other problems or suggestions.