hi Code: function formatCategories($categories, $parentId) { // $navCat stores all children categories // of $parentId $navCat = array();
// expand only the categories with the same parent id // all other remain compact $ids = array(); foreach ($categories as $category) { if ($category['cat_parent_id'] == $parentId) { $navCat[] = $category;
}
// save the ids for later use $ids[$category['cat_id']] = $category;
}
print_r($ids[$category[0]]);
If i am printing the array using, print_r($ids[$category[0]]);here 0 is the start key of the array(as shown in last line of codes)..OR print_r($ids[$category[12]]); here 12 is the cat_id of a product...
I am getting notice as,Notice: Undefined offset: 0. without out the display of expected output..
And if i use print_r($ids[$category['cat_id']]);after for each loop i get, Array ( [cat_id] => 17 [cat_parent_id] => 13 [cat_name] => Hunter X Hunter [cat_image] => 746e05a7a629d53bc488115a75ee35d9.jpg [cat_description] => Story about hunter and combat )
The question is why do i get notice of undefined offset after using those,print_r($ids[$category[0]]);(as shown in last line of codes)..OR print_r($ids[$category[12]]); statements instead of expected output..