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PHP

Ben Os
Ben Os
20,008 Points
Posted by Ben Os
Ben Os
20,008 Points

Items are not displayed at all when filtered by category.

I guess my problem deals with index.php and catalog.php files (and maybe also with functions.php).

When I go to the main navigation menu on my site and click a category, nothing occurs. The page is almost empty.

Site: http://port-80-mkqxe69shv.treehouse-app.com/

Snapshot: https://w.trhou.se/cvi4jrrf27

1 Answer

Benjamin Larson
Benjamin Larson
34,055 Points
Benjamin Larson
Benjamin Larson
34,055 Points

Hi Ben,

You can always check your code against the code that Alena Holligan uses in the videos. Here is the complete array_category() function. I think your biggest problem was not using the strtolower method when comparing the category strings. You should also check to make sure the category is not null, as the first part of the function accomplishes:

function array_category($catalog, $category)
{ 
  if ($category == null) 
  {
    return array_keys($catalog); 
  }

  $output = array();

  foreach ($catalog as $id => $item)
  {
    if (strtolower($category) == strtolower($item["category"]))
    {
      $output[] = $id;
    }
  }
  return $output;
}
Ben Os
Ben Os
20,008 Points
Ben Os
Ben Os
20,008 Points

Hi, I checked the code several times... I didn't use the strlower function since I always use lowercase letters in the firstplace... Or shell I say - I tend to do so.

Benjamin Larson
Benjamin Larson
34,055 Points
Benjamin Larson
Benjamin Larson
34,055 Points

The difficulty is that in this example, the array is hard-coded with category strings that do use uppercase values. It's a good practice when comparing strings, especially those that involve user input that you can't predict, to use a function like strlower(). Obviously you don't want to do this when checking something case-sensitive, like usernames and passwords.