How to keep form values after post

Question

I am trying to find what the easiest way to keep form values after post. I am really trying to have to keep from learning ajax right this second for the one form, Plus I am not sure how hard it would be to implement ajax into my already existing google map page. So I am trying to find a way to retain the values of two date fields after submit has been pushed

See: http://stackoverflow.com/questions/2246227/keep-values-selected-after-form-submission — Kevin Peno, Mar 04 '11 at 19:26
wait are you trying to re-populate the form after a post or are you trying to reuse the values in the form after submit? like on different pages? — KJYe.Name, Mar 04 '11 at 19:27
Do you want to just maintain access to the values? Or do you want the page to persist the values (assuming you are posting to the same page)? — Babak Naffas, Mar 04 '11 at 19:28
I would like to either re-populate or keep the values there. I assume that to keep the values I have to use Ajax, so I would like to repopulate so the user doesnt have to remember what their selection was. — shinjuo, Mar 04 '11 at 19:33
Shoudn't be marked as duplicate with the other question which belongs to wordpress. — Karl Adler, Sep 09 '15 at 07:56

score 72 · Accepted Answer · answered Mar 04 '11 at 20:16

72

If you are looking to just repopulate the fields with the values that were posted in them, then just echo the post value back into the field, like so:

<input type="text" name="myField1" value="<?php echo isset($_POST['myField1']) ? $_POST['myField1'] : '' ?>" />

answered Mar 04 '11 at 20:16

Infotekka

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@Kenji CSRF Token... And htmlspecialchars. – TheOneWhoSighs May 07 '15 at 17:09
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It would be helpful if you would say what to do, not just "NO. Don't do that." Use htmlspecialchars($_POST[ .. – dcromley Sep 07 '15 at 02:46
That's the basic idea. In addition you should clean the submitted data to get rid of coding characters. – Button 108 Oct 23 '15 at 16:06
This works, but should be a problem on `select` tag however – Ahmed Suror Feb 16 '21 at 17:59
It works in the `select` tag. add a second ` ` where the select - option text would go. – grantiago Nov 16 '22 at 16:17

score 7 · Answer 2 · answered Mar 04 '11 at 19:40

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you can save them into a $_SESSION variable and then when the user calls that page again populate all the inputs with their respective session variables.

answered Mar 04 '11 at 19:40

Naftali

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storing them into a $_SESSION would kill the server. cookies or the chosen answer are the best ways. – zeeks Sep 03 '14 at 16:30
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@zeeks I'm a beginner in php. Why will it kill the server? Could you please clarify? – Ilya Kushlianski Dec 17 '17 at 20:09

How to keep form values after post

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