How to pass php array in input type hidden in html form

Question

I want to pass my php array in my form input type as hidden.i have tried many times but it is giving me an array (key=>value,key=>value) in my input form.

This is my php code have a array.

 $my_arr = array();
 $my_arr['key']="value";

This is my html code

 <form method="post" action="next.php">
 <input type="hidden" name="my_form_data" value="<?php print_r($my_arr) ?>">
 <button name="submit_btn">Submit</button>
</form>

Any one please help me to pass php array in my input hidden element and how to get it in next page.

i have limit to pass one hidden element only @VimalS

bharat savani
– bharat savani

2017-03-10 06:07:16 +00:00
Commented Mar 10, 2017 at 6:07 — bharat savani
– bharat savani, Commented Mar 10, 2017 at 6:07

miken32 · Accepted Answer · 2017-03-10 06:10:11Z

4

If I'm understanding you correctly, you can try this:

<form method="post" action="next.php">
 <input type="hidden" name="my_form_data" value="<?php echo htmlspecialchars(serialize($my_arr)) ?>">
 <button name="submit_btn">Submit</button>
</form>

Then in next.php you unserialize to get the PHP data structure back:

<?php
$my_arr = unserialize($_POST["my_form_data"]);

answered Mar 10, 2017 at 6:10

miken32

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Comments

Niklesh Raut · Accepted Answer · 2017-03-10 06:09:06Z

3

The easiest way is to make json as string by json_encode and then decode at the time of retrieve by json_decode,

<form method="post" action="next.php">
<input type="hidden" name="my_form_data" value="<?php echo json_encode($my_arr); ?>">
<button name="submit_btn">Submit</button>
</form>

answered Mar 10, 2017 at 6:09

Niklesh Raut

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Comments

Jaymin · Accepted Answer · 2017-03-10 06:09:39Z

3

$hiddenvariable=array("apple","banana","cat");
foreach($hiddenvariable as $value)
{
  echo '<input type="hidden" name="my_form_data[]" value="'. $value. '">';
}

Making an array first then extracting an each elements using foreach and passing those values into hidden value.

answered Mar 10, 2017 at 6:09

Jaymin

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3 Comments

Niklesh Raut Over a year ago

This is something same as : stackoverflow.com/questions/6547209/…

Jaymin Over a year ago

I have just modified the code according to his need mate I haven't searched on stackoverflow and read all those duplicate answers. Gave him answer according to this need :)

rebduvid Over a year ago

My positive vote to this answer! It's simple and don't need changes in the root form. good head! Very usefull if you have a form with select multiple and link in the results to a profile, and a back button to the form, because this answer make the array like a multiple select.

Rafiqul Islam · Accepted Answer · 2017-03-10 10:34:59Z

0

Use my_form_data[] in name

<form method="post" action="next.php">
  <input type="hidden" name="my_form_data" value="<?php echo htmlentities(serialize($my_arr));?>">
</form>

edited Mar 10, 2017 at 10:34

answered Mar 10, 2017 at 6:04

Rafiqul Islam

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1 Comment

Rafiqul Islam Over a year ago

@bharat-savani I changed my answer

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