array ...

Posted on 16th Feb 2014 07:03 pm by admin

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..

But if i use print_r($ids);
i get,

Array ( [12] => Array ( [cat_id] => 12 [cat_parent_id] => 0 [cat_name] => Cars [cat_image] => dce08605333d805106217aaab7f93b95.jpg [cat_description] => Expensive and luxurious cars ) [13] => Array ( [cat_id] => 13 [cat_parent_id] => 0 .................................etc....

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..


could you explain this please..

thanks

Your Answer:

Login to answer

Other forums

Help me with some material on Open Text Overview.
Hi Experts,
Please help me out with some material on Open Text. I have been supporting AP Workf

Calculating a rating by adding number of points and dividing by number of items
I have a site that users can post links to files to download. They can rate these files on a 1-5 sca

Curly Bracket Delimeters.
I'd always believed that the starting and ending delimeters in preg_ functions had to be the same ch

Pls help with PHP
Pls can anyone direct me on how to create a user account for a customer. For example i want know if

Files in current folder. Should be an easy fix.
Never mind. I've asked about this before and just found my answer. Anyway to delete this?

natcasesort works on one server but not on another
Hi

I have a problem that I was hoping that someone can help me with.

I'm trying to use

Displaying different page content, depending on the logged in user.
Hi all, I am new to ASP.net (and web development in general), and have a question about how I can di

php unable to sent email
Hi, guys, I try to send a email through php but unfortunately the mail unable to sent. Here is my co

division gives infinity anser
int main()
{
int z=0;
int i=1/z;
cout<
}

It doesn't throw a

Limiting uploaded file type
Hi. First post here
I am working on a simple upload script, and I need it to limit the allowed f