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

get the country of visitor and display content based on that
Hello all,

I have seen that Google analytics can tell you where a visitor is coming from and

login page does not execute a else statement
I've created a login page using sessions.
When an incorrect user name or password is entered then

how do i make new line after *
First check this page here. and you see my report. Im pulling form a mysql db. I want to beable to m

upload image name with extension using php
hi frds..

<input id="file1" type="file" name="file[]" &a

private constructor
Hello,

Can we create a constructor as private? If yes, what is the use of it? If no, why can'

gettext translates ALWAYS?
I'm using gettext with the new version of XAMPP (5.3.0) on Windows Seven RTM (build 7600)
gettext

chat
hello i'm amir i need a chat source code in asp.net 2.0 without Ajax. anybody can help me?

PHP File Upload Problem
Hi, I have written a very simple file upload script but it fails for reasons I can't explain. Hope

Help pulling in 'id' with "read more" link
I'm trying to create snippets of my articles in the cms I'm creating, and then have them redirect to

session checking in page load
hai all I have a web site is www.Mryas.com in this my login page is Page1.aspx its co