unserialize Error at offset 5 of 9 bytes

Question

I'm trying to pass an array trough a html-form input field. Using serialize to pass it and then unserialize to read the array again. I have multiple input fields.

$test = array('name' => 'Sander', 'type' => 'melon');

echo '<input type="hidden" name="rank[]" value="'.serialize($test).'" >';

Then If I want to unserialize it and show the data it gives an error:

$list = $_POST['rank'];
var_dump($list);
var_dump(unserialize($list[0]));

Answer 1

You most likely need to pass the serialized string through urlencode() before outputting.

To process it then, use urldecode() before unserialize().

Answer 2

try

 $list = urldecode($_GET['rank']);
//var_dump($list);
var_dump(unserialize($list));
$test = array('name' => 'Sander', 'type' => 'melon');?>
<form >
<input type='hidden' name='rank' value='<?php echo serialize($test);?>' >
<input type="submit" >
</form>