set_header() file download problem

It's not a bug. You just need to learn how to use the Output class. Look at http://www.codeigniter.com/user_guide/li...utput.html, there's code example. You need to call _display() before you call exit.

PHP Code:

$response = array('status' => 'OK');

$this->output
        ->set_status_header(200)
        ->set_content_type('application/json', 'utf-8')
        ->set_output(json_encode($response, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES))
        ->_display();
exit; 


CodeIgniter 4 tutorials (EN/FR) - https://includebeer.com
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