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

Problems generating word documents on server side for security reasons
I have a problem with word documentation generation when generating a word document (docx) with PHP.

Switch letters in message (basic cryptology)...
I am trying to switch letters around in a message for an application on my site (see here). The prob

send message to the java application
Oracle 10g with Windows platform.

I have a java application that periodically pings the d

UDP server recvfrom() always returns -1? :(
Hello all,
I am getting a very strange error in my code :( I am writing a server application in C

Links not updating
I'm trying to fuel a simple navigation system for a news section. It works fine when it comes to ret

random generation
hi

i need help with generating this

numbers from 1-12

i want to generate in ran

Effort Estimation Template for Steady State Support
Hi Everyone,

Is there any SAP provided template/format for system change and enhancements

need Array help
This is what I have to do.
$teamname[1] = "Red Sox"
$teamname[2] = "Gian

Problem with php's rename function
So, i'm having a problem with the php rename function. Basically my script 'delete_user.php' attempt

How to disable direct access to a file
Suppose I've 2 Files. 1.php & 2.php

I don't want anybody to access 2.php directly fr