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

Undefined offset
The following script checks to see if the user answer matches the correct answer.

Form Fiel

Linux socket programming
Where can I find a good introduction to socket programming?

MFC GUI Programming
I am working on a project right now that requires me to create a MFC Windows GUI. Basically it need

Multiple Dropdown Selections
I have a form that let's a user insert a page with the ability to select categories. I want them to

an interesting question
Greetings folks, got to ask an interesting question...

let say
i have created a function s

GIS appliction help
I found some tutorials in the internet to develop a map application I don't want to use google maps

Insert data in Mysql and move to another page
I'm stuck with this simple problem. I need to insert data in Mysql and then hit submit and move to a

Do While statement
hi guys,

This may sound trivial but im new to php and as part of an assignmenti have to const

Question about the upload of large files
Hi there,

I have a question about the upload of large files, like videos (files generally abo

New Search Engine
Hey everyone,

I have a ZIP Code Radius search engine already functional. it displays all of t