Question

What causes this error in my code?

$query = $this->db->query("SELECT * FROM tour_foreign ORDER BY id desc");
        $data = array();
        foreach ($query->result() as $row)
            $data[] = array('guide' => $row->guide);

            echo json_decode($data); //Line 167

error:

erro: json_decode() expects parameter 1 to be string, array given: Line Number: 167

UPDATE:

If I use json_encode instead of json_decode, my output is this:

[{"guide":["\u0633\u06cc\u062f \u0633\u0639\u06cc\u062f \u062f\u0627\u062f\u0627\u0634\u0632\u0627\u062f\u0647"]},{"guide":["\u0633\u06c‌​c\u062f \u0633\u0639\u06cc\u062f \u062f\u0627\u062f\u0627\u0634\u0632\u0627\u062f\u0647"]},{"guide":null}]

They are persian words.

Answer 1

I think you want json_encode, not json_decode.