Attempt to assign property of non-object in...

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

I'm having issues with the following function in PHP 5...

function getTreeWithChildren()
{
$category_id = $this->fields['id'];
$parent_id = $this->fields['parent'];

$this->DB->build( array( 'select' => join(',', $this->getFields()),
'from' => $this->table,
'order' => $this->fields['sort']
) );
$this->DB->execute();


// create a pseudo root level object
$root = new stdClass;
$root->$category_id = 0;
$root->children = array();

$arr = array($root);

// populate array and create empty child array
while ($row = $this->DB->fetch()) {
$arr[$row->$category_id] = $row;
$arr[$row->$category_id]->children = array();
}

// build child data
foreach ($arr as $id => $row) {
if (isset($row->$parent_id))
$arr[$row->$parent_id]->children[$id] = $id;
}

return $arr;
}



I'm getting the error

QuoteAttempt to assign property of non-object in ... on line 391

which is...

$arr[$row->$category_id]->children = array();

I've tried typecasting "$this->DB->fetch()" to an object with...

while ($row = (object) $this->DB->fetch()) {

but get a maximum execution time exceeded error instead.

The code was originally written for PHP 4 so I suspect it might be a way the objects are handled and the use of stdClass()?

I'd be extremely grateful if somebody could give me pointers to make this PHP5 compatible (5.2.9)? Thanks in advance

Your Answer:

Login to answer

Other forums

Show specific day of the week
I have been racking my brain trying to get this function to work properly and it is doing so for eve

Newb advice
Hi all,

I'm a flash front end designer and I've taken on a project that needs some back end p

pspell
using pspell, is it possible to get words that would be best in the current phrase?

For examp

problem with GROUP BY and ORDER BY
i usually use this query to display the last 10 entries from a sql table:

Code: $query = &quo

Intrastat Report Config in ECC 6.0 - goods Movement in EU countries
Colleagues, need ur help to understand the changes require in ECC 6 standard Report configuration se

Linking with Foreign Keys
I have been getting an erro when I try and link:

create table Faculty_Specialty (I_Name v

email form (cannot find the problem)
Hello there. I've been having trouble with an email form. Can't find the problem really. I've tested

RSS feed - FeedList for WordPress
Hi,

I'm trying to alter the FeedList plugin for WordPress so that I can click on the title of

Save User Inputs while javascript reloading!
hi..
i have written a PHP code in which i reload the page when user selects a value in dropdown..

recrawling
Can anyone suggest me how may i know a page is updated before it is being downloaded, so that i can