CodeIgniter Validation: possible to validate GET query strings?

Question

The form validation library seems to only work on POST. I need to use query strings and would like to use CI to validate the passed values. Is there a way to do this?

You can make CodeIgniter think it was from POST, even though it wasn't. `$_POST = $_GET`, maybe? — gen_Eric, Jun 04 '12 at 15:39
lol, the whole class is hardcoded to use `$_POST`. So unless you completely override it, then no. — Esailija, Jun 04 '12 at 15:46
possible duplicate of [How do I validate a form field in Codeigniter when using Get parameters?](http://stackoverflow.com/questions/10524992/how-do-i-validate-a-form-field-in-codeigniter-when-using-get-parameters) — Thomas Decaux, Jul 28 '14 at 11:49
See my answer at http://stackoverflow.com/questions/10524992/how-do-i-validate-a-form-field-in-codeigniter-when-using-get-parameters — Thomas Decaux, Jul 28 '14 at 11:49

score 10 · Accepted Answer · answered Jun 04 '12 at 16:12

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The current Codeigniter 3.0 development branch provides an option to insert your own variable instead of $_POST. So you could start using 3.0.

Alternatively, the only way in CI2.1 is to do $_POST=$_GET before you run the validation.

answered Jun 04 '12 at 16:12

Laurence

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Could you please provide the "option to insert your own variable instead of $_POST" ? Because i'm migrating to CI 3.0 and all my form_validation are working well except one. I receive GET values and i would like to validate them ... I don't know how to do, thanks ! – maxime1992 Jan 31 '15 at 18:22
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I just found out what was the problem ... !!! In CI 3.0, they add a little check. Go to system/librairies/Form_validation.php. Search the "set_rules" function and delete the line : if ($this->CI->input->method() !== 'post' && empty($this->validation_data)) { return $this; } – maxime1992 Jan 31 '15 at 18:30
Ive tried $_POST = $GET but the validation->run() still returns FALSE – Zorgarath Apr 30 '15 at 23:00
You need to do `$_GET` not `$GET` – Laurence May 01 '15 at 02:33
@Maxime I agree with you but I dont want to edit the codeigniter core code, did you find another way to do it ? – Nicolas Thery May 02 '16 at 16:31
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@NicolasThery sorry it was a long time ago I don't exactly remember. I think I just stick with that even if it was not the best solution obviously ! – maxime1992 May 02 '16 at 19:13

score 3 · Answer 2 · answered May 18 '15 at 12:36

See this page for the CodeIgniter 3 solution:- http://www.codeigniter.com/userguide3/libraries/form_validation.html#validating-an-array-other-than-post

For CodeIgniter 2 you can do $_POST = $_GET; before $this->form_validation->run() as mentioned above.

score 1 · Answer 3 · answered Jun 04 '12 at 16:14

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You could overwrite the Form_validation function run in a MY_Form_Validation and modify it.

answered Jun 04 '12 at 16:14

nebulousGirl

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score 1 · Answer 4 · edited May 23 '17 at 11:53

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Reference How do I validate a form field in Codeigniter when using Get parameters?

Before validation rules, set the validation data with the following code.

 $this->form_validation->set_data($_GET);

edited May 23 '17 at 11:53

Community

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answered Feb 21 '17 at 10:08

Abdul Rehman

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CodeIgniter Validation: possible to validate GET query strings?

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