MySQL Error - Commands out of sync; you can't run this command now

Question

I am using MySQL with PHP, Codeigniter. I had a question which was answered by bluefeet in the post here

I created a stored procedure for the second solution by blue

Answer 1

In file

system/database/drivers/mysqli/mysqli_result.php

Add:

function next_result()
{
    if (is_object($this->conn_id))
    {
        return mysqli_next_result($this->conn_id);
    }
}

function result($type = 'object')
{
    $result = array();

    if ($type == 'array') $result = $this->result_array();
    else if ($type == 'object') $result = $this->result_object();
    else $result = $this->custom_result_object($type);

    $this->next_result();

    return $result;
}