CodeIgniter - print custom values in request header

Question

How can I print the values set in the header of a received request using CodeIgniter?

I tried print_r($_SERVER); which doesn't help me. I'm hoping there's a different way using CI.

use CI's Input class: $this->input->request_headers(); (or apache_request_headers() if available). — José Trindade, Jan 06 '16 at 11:46
Read [this](https://ellislab.com/codeigniter/user-guide/libraries/input.html) — Saty, Jan 06 '16 at 11:47
Here is new docs: [CI3](https://codeigniter.com/userguide3/libraries/input.html), [CI2](https://codeigniter.com/userguide2/libraries/input.html). — Tpojka, Jan 06 '16 at 13:07
how i set value in CI at time of form submit to get value in $this->input->request_headers(); — sunil, Apr 29 '17 at 11:59

score 22 · Accepted Answer · answered Mar 24 '16 at 12:34

22

Simply use,

$this->input->request_headers();

answered Mar 24 '16 at 12:34

john

how i set value in CI at time of form submit to get value in $this->input->request_headers(); – sunil Apr 29 '17 at 11:59
@sunil you can't. CI is for the back end of your application and requests (including the request header) are created from the front end (usually via AJAX). Ask a new question if you need help. – john Apr 30 '17 at 14:09
Thanks @john , yes its working with ajax , but as you said in form it can't work , so thereis nothing to do with curl or something else if i wish o not use jquery ajax – sunil Apr 30 '17 at 19:05
what is used in CI v4? I have tried headers, header and getHeaderLine to get customer header but didn't get response – Pragnesh Chauhan Jul 15 '21 at 07:42
get specific value $this->input->request_headers()['Host'] – Billu Dec 21 '21 at 13:13

score 2 · Answer 2 · answered Jan 06 '16 at 11:47

2

If you are sending values from form submit,

$_REQUEST will help you

or

    $this->input->post();
    $this->input->get();

answered Jan 06 '16 at 11:47

teshvenk

Thanks but `$this->input->request_headers(); ` was what I was looking for. – john Jan 06 '16 at 13:13

score 0 · Answer 3 · answered Dec 21 '21 at 17:22

To receive all values from the request header

$valuesInHeader = $this->input->request_headers();

To get specific value from request header

$hostValueInHeader = $this->input->request_headers()['Host'];
//"Host" is a key of a value, you can use your required key.

3 Answers3