Fatal error: Call to a member function num_rows() on a non-object in /home/a8164291/p

HI
I AM A STUDENT I JUST CAME UP WITH THIS ERROR MESSAGE ..
CAN ANY ONE please HELP
:::
THE EXACT ERROR CODE WAS
::
Fatal error: Call to a member function num_rows() on a non-object in /home/a8164291/public_html/application/models/applicationmodel.php on line 89

///////////////////////////////////////////////////////////////////////////////////////
<?php

/**
* User Model
*
*
*/
class Applicationmodel extends Model
{
//Constructor
function Applicationmodel()
{
parent::Model();
}
function getApplications($onlyBasic = false)
{
if ($onlyBasic == true) $appQuery = $this->db->query('SELECT * FROM applications WHERE user_id=0');
else $appQuery = $this->db->query('SELECT * FROM applications');
if ($appQuery->num_rows() > 0)
{
$applications = array();
foreach ($appQuery->result_array() as $appRow)
{
$applications[$appRow['application_id']] = $appRow;
}
return $applications;
}
else return false;
}
function getUserApplications()
{
$this->db->select('application_ids');
$this->db->where('user_id', $this->session->userdata('user_id'));
$this->db->limit(1, 0);
$userAppQuery = $this->db->get('users_applications');
if ($userAppQuery->num_rows() > 0)
{
$userAppRow = $userAppQuery->result_array();
$appQuery = $this->db->query('SELECT * FROM applications WHERE application_id IN (' . $userAppRow[0]['application_ids'] . ')');
if ($appQuery->num_rows() > 0)
{
$applications = array();
foreach ($appQuery->result_array() as $appRow)
{
$applications[$appRow['application_id']] = $appRow;
}
return $applications;
}
else return false;
}
else return false;
}
function isApplication($appName)
{
$this->db->where('application_name', $appName);
$this->db->limit(1, 0);
$appQuery = $this->db->get('applications');
if ($appQuery->num_rows() > 0)
{
$appRow = $appQuery->result_array();
return $appRow[0]['application_id'];
}
else return false;
}
function isUserCanAccessTheApplication($applicationId)
{
$this->db->select('application_ids');
$this->db->where('user_id', $this->session->userdata('user_id'));
$this->db->limit(1, 0);
$userAppQuery = $this->db->get('users_applications');
if ($userAppQuery->num_rows() > 0)
{
$userAppRow = $userAppQuery->result_array();
$userAppArray = explode(',', $userAppRow[0]['application_ids']);
if (array_search($applicationId, $userAppArray) === false) return false;
else return true;
}
else return false;
}
function getLanguages()
{
$this->db->select('lang_code, lang_name');
$this->db->from('languages');
$langQuery = $this->db->get();
$languages = array();
if ($langQuery->num_rows() > 0)
{
foreach ($langQuery->result_array() as $langRow)
{
$languages[] = $langRow;
}
}
return $languages;
}
}

?>

 

Something is wrong with $appQuery.

Add this:

echo "<pre>";
print_r($appQuery);
echo" </pre>

PHP:

before this line:

if ($appQuery->num_rows() > 0)

PHP:

And report back with the results.

You may also want to add this at the top of the file:

ini_set('display_errors', 1);
error_reporting(E_ALL);

PHP:

And lastly, you may want to show us the source code for the DB class as well.

 

got this error message after i inserted this code :
echo "<pre>";
print_r($appQuery);
echo" </pre>
////////////////////////////////////////////
error code :arse error: syntax error, unexpected '[', expecting ']' in /home/a8164291/public_html/application/models/applicationmodel.php on line 33

 

Oops, that is supposed to be

echo "</pre>";

PHP:

... sorry

 

sorry actually the error is ::
Parse error: syntax error, unexpected ']', expecting T_STRING or T_VARIABLE or T_NUM_STRING in /home/a8164291/public_html/application/models/applicationmodel.php on line 96
..............................................

 

Try replacing

return $languages;

Code (markup):

with:

return $languages[];

Code (markup):

Just try..

 

thanks For The Help And I got The Same Error Also Now The Error Is

Parse error: syntax error, unexpected ']', expecting T_STRING or T_VARIABLE or T_NUM_STRING in /home/a4080554/public_html/application/models/applicationmodel.php on line 98

Here's The Code!

 

Line 98 Is

 

Check For the New Error of Mine Plz