Unknown column xxx in 'where clause'

[eluser]R. Oerlemans[/eluser]
Hello There,

I am working on a bug(?) for a few hours now, but couln't fix it.

This is my code:

Code:

if(!$this->db->get_where('merken',array('m_name' => $brand))->count_all_results()){

$brand contains 'Acer' in this preview.

A Database Error Occurred

Error Number: 1054

Unknown column 'Acer' in 'where clause'

SELECT * FROM (`merken`) WHERE `m_name` = Acer

I want to check if it already exists, but it won't work very well.