Get values from URL using GET from encode UTF-8 - php

Question

let me start by saying that I have no idea how to formulate this question, I have spend the last two days looking for some ways to to the following.
I send some information encoded using base64 as follow....
Values are:
Lóms Gruñes
this values came from an input box
beacuse of that I do this
$name = htmlentities(( $_POST ['name'] ) , ENT_NOQUOTES, 'UTF-8');
$midn = htmlentities(( $_POST ['midn'] ) , ENT_NOQUOTES, 'UTF-8');
the output for this should be
Lóms Gruñes
And that is what gets encode, until that everything is fine, and I can do whatever I need with that, in this case I'm going to encode it using base64
$datas ='&name='. $name .'&midn='. $midn;
$bd = base64_encode($datas);
// Now lets send that info to another file..
header( 'Location: other.php?d=$db' ) ;
So the url will be something like
domain.com/other.php?d=TCZvYWN1dGU7bXMgR3J1Jm50aWxkZTtlcw==
So now lets decode it so that it can be saved...
$ds = base64_decode($_GET['d']);
parse_str($ds, $params);
$name = htmlentities($params['name'], ENT_NOQUOTES);
$midn = htmlentities($params['midn'], ENT_NOQUOTES);
It looks pretty straight forward isn't it... but here is the problem because when I try to use the values nothing happen... lets say I just want to echo it...
echo $name . '<br>';
echo $midn;
What I get is
L
Gru
so where is the ó and the ñ?
ok, let say I don't encode anything so the URL will look like this...
domain.com/other.php?name=Lóms&midn=Gruñes
// and the I use echo like this:
echo $_GET['name'] . '<br>';
echo $_GET['midn'];
// the output is
L
Gru
Even if I put : header ('Content-type: text/html; charset=utf-8'); after the <?php ... nothing happen... so, the question... how can I get the ó as a value or better yet, how can I send the í,ó,ñ,á...etc as is in the url domain.com/file.php?data=íÄÑó and retrive it as is and save it as is and display it as is...
I;m not sure if this has some relevant information, the data is going to be saved in a DB, the DB is InnoDB, utf8_general_ci
Thank you for taking the time...

Answer 1

Always escape/encode for the technology you're using.
To get the UTF-8 encoded values from the form submission:
$name = $_POST['name'];
$midn = $_POST['midn'];
To output those into HTML:
<p><?php echo htmlspecialchars($name, ENT_COMPAT, 'UTF-8'); ?></p>
To embed them in a URL:
$url = sprintf('foo.php?name=%s&midn=%s', rawurlencode($name), rawurlencode($midn));
// or
$url = 'foo.php?' . http_build_query(array('name' => $name, 'midn' => $midn));
In foo.php, to get the values back:
$name = $_GET['name'];
$midn = $_GET['midn'];
And again, to output those into HTML:
<p><?php echo htmlspecialchars($name, ENT_COMPAT, 'UTF-8'); ?></p>
And that's basically all you need to do. Always escape values using the right function for the medium, don't escape more or earlier than you need to.

Answer 2

First of all, if you want to decode htmlentities try html_entity_decode().
For encoding the url try urlencode().
Example from php.net:
<?php
$query_string = 'foo=' . urlencode($foo) . '&bar=' . urlencode($bar);
echo '<a href="mycgi?' . htmlentities($query_string) . '">';
?>
Hope it helps!

Answer 3

May be this will work for you . Instead of using htmlentites I used rawurlencode and rawurldecode function .
Below is same code
First get the values from the
$name = rawurlencode('Lóms Gruñes'); use can use //( $_POST ['name']
$mid = rawurlencode('Gruñes'); and here ($_POST ['midn'] )
then
echo $datas ='name='. $name .'midn='. $midn;
$en = base64_encode($datas);
Append this on next url . Then get the value and decode it using base64_decode function
$dd = base64_decode($en);
parse_str($dd);
echo $name;
echo $midn;