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

Need help with unexpected T-STRING error
I'm a newbie and I'm still learning PHP. However this error has me stumped. I've googled, searched t

PHP FTP connect doesn't work with correct login
Hi!

i am working on this test code:
Quote<?php

$ftp_ser

Help with Contact Form
I have this Form on an html page and the associated code on page.php (below).
I keep getting the

How to generate a random array of integers subject to a certain constraint
I am writing a program that asks the user to enter an integer N and then generates a random array of

script and html conflict in trying to create a header.
I have an error is occurring because of an html webpage with a "php require" at the top of

php or sql?
Sorry not sure if this is a sql problem or php the following code is supposed to delete data from th

ldap connection
We are using ldap to get user information from the domain controller. It was working before. Recentl

Auto-populating dropdowns and multiple forms.
Here's what I have so far:

First drop down = select a state (works)
This populates the sec

form variables from database help.
Hi all,

I would like to have a form that gives you options based on the results of an mysql q

Tree Menu
Hi guys,

Can anyone help me making a tree navigation system? I have a site where I'm allowin