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

mySQL and PHP search
Hello,
I am trying to code a project and ran into a brick wall with one of my pages. I am pretty

How can you detect variable string in a massive string?
Ok guys, i need some help with this one.

I am going to be getting a large string, like 10-20

Data type mismatch
Hi,
I am migrating data from algol to c.I mapped real datatype in algol to double datatype in

timed header image rotation
I have a joomla site and I was trying to setup a rotating image based on timing NOT just refreshing

A rank users order by points
I want to make an insert from table 'rank' , with number (rank) from the cod blow, to fild users.ran

Need help making login verification cleaner...
I use the below to verify user login. I first check the cookie for the id, ip and a unique id. If it

Required to login help
I'm trying to set up my site so users have to be logged into the forum to access the site.I've been

Entering Data Problem
Code: $result = mysql_query("SELECT * FROM flights");
while ($row = mysql_fetch_array($

Count
Getting the same count everytime

Code:
$visitquery = mysql_query("SELECT COUNT(*) FR

IS this code correct
The reason i ask is everything underneath it appears to be alink as well, tis blimmin annoying