Need hidden input value to stay in form php

Question

I have drop down in pop up window where users can choose their country. I am using hidden field to submit choice with php and when I hit "submit" button I get the country which was chosen. Information about country is shown in the header so it should be on every page but when I start to browse between pages the country value dissapeares. How can I keep it on every page?

<div class="field">
            <div class="input-box">
                <?php $_countries = Mage::getResourceModel('directory/country_collection')->loadData()->toOptionArray(false); ?>
                <?php if (count($_countries) > 0): ?>
                    <select name="country" id="country" onchange="print(this.value)">
                        <option value=""> </option>
                        <?php foreach($_countries as $_country): ?>
                            <?php if(!in_array($_country['value'], $arrNO)):?>
                                <option value="<?php echo $_country['value'] ?>" >
                                    <?php echo $_country['label'] ?>
                                </option>
                            <?php endif;?>
                        <?php endforeach; ?>
                    </select>
                <?php endif; ?>
            </div>
            <form action="" method="post">
            <input id="choice" type="hidden" name="fname" value=""/>
            <input type="submit" value="OK"/>
            </form>
            <div id="usWarning"><p><span class="red">NOTE</span>: If you live in <span class="red">Arizona</span>, <span class="red">Iowa</span>, <span class="red">Maryland</span>, <span class="red">Oklahoma</span>, <span class="red">South Dakota</span>, <span class="red">Vermont</span>, <span class="red">Washington</span> or <span class="red">Wisconsin</span>, we are unfortunately not allowed to sell tobacco to you. Its forbidden with online sales of tobacco in these states.</p></div>
        </div>

"Value" for the hidden input field assigned with the help of JS:

function print(value) {
    document.getElementById("choice").value=value;
}

Thank you for your help.

Problem with `session` that it expiers within 20 min, problem with `cookie` it doesn't save imideately when I hit submit button... :S — Curious Programmer, Nov 09 '12 at 09:31

Anirudh Ramanathan · Answer 1 · 2012-11-09T10:27:12.740

0

You could make a session variable, to make the value persist across pages.

$_SESSION['countryname'] = "countryname";

Sessions

Edit:

As you are using Sessions for a different purpose, set a cookie, separately, subject to its own expiry. using setcookie.

edited Nov 09 '12 at 10:27

answered Nov 09 '12 at 09:16

Anirudh Ramanathan

46,179
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Problem with session that it expiers within 20 min :S – Curious Programmer Nov 09 '12 at 09:37
@CuriousProgrammer It doesn't expire on its own, unless you make it do so explicity. – Anirudh Ramanathan Nov 09 '12 at 10:06
Yes, I know, I need session expire within 20 min – Curious Programmer Nov 09 '12 at 10:15
In that case, set a cookie, separately, subject to its own expiry. using [**`setcookie`**](http://php.net/manual/en/function.setcookie.php). – Anirudh Ramanathan Nov 09 '12 at 10:26
I did `` but when I hit "submit" button it doesn't save it immideately, only if I navigate to other page and if I continue browsing cookie becomes empty :S – Curious Programmer Nov 09 '12 at 10:38

score 0 · Answer 2 · answered Nov 09 '12 at 09:19

0

To preserve a form value across requests as a hidden field simply means echoing it back into the form when rendering it.

<input id="choice" type="hidden" name="fname" value="<?php echo htmlspecialchars ($_POST ['fname']); ?>" />

Alternatively you can use sessions or cookies to propagate the value to other pages.

answered Nov 09 '12 at 09:19

GordonM

31,179
15
87
129

Tried that didn't work because when I browse other pages on this website `$_POST["fname"]` becomes empty. Problem with session that it expiers within 20 min, problem with cookie it doesn't save imideately when I hit submit button... :S – Curious Programmer Nov 09 '12 at 09:37

score 0 · Answer 3 · answered Nov 09 '12 at 09:22

0

in action page

$_SESSION['country']    =   $_POST['country']

in form

<option value="<?php echo $_country['value'] ?>" <?php if(isset($_SESSION['country']) && $_SESSION['country']===$_country['value']) echo "selected"; ?>>

echo the session value(if set) to the hidden field too

answered Nov 09 '12 at 09:22

arun

3,667
3
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Problem with session that it expiers within 20 min, problem with cookie it doesn't save imideately when I hit submit button... :S – Curious Programmer Nov 09 '12 at 09:35
I can't change the session time because I need it to expire within 20 min for other purpose. – Curious Programmer Nov 09 '12 at 09:47

Need hidden input value to stay in form php

3 Answers3