Error Number: 1054?

[eluser]SaSa[/eluser]
why this code have error?
With respect

Code:

search_customer = 1;//$this->input->post('search_customer');
    $where = "id=$search_customer OR name=$search_customer";
    $query = $this->db->get_where('customer', $where);
    if($query->num_rows()==0){
                echo '0';
            }else{
                $data = array();
                foreach ($query->result() as $row)
                {
                   $data[] = $row;
                }
                echo json_encode($data);
            }

error:

Code:

A Database Error Occurred
    Error Number: 1054
    
    Unknown column 'id=1' in 'where clause'
    
    SELECT * FROM (`customer`) WHERE `id=1` OR name=1
    
    Filename: D:\xampp\htdocs\mehdi\system\database\DB_driver.php
    
    Line Number: 330