decode json format data sent via url - php

Question

consider the following url
index.php?json={uid:guest|10001441}
I am not able to decode the data .
I need the output as {"uid":"guest|10001441"}.
The code i m using is
if (isset($_GET['json']))
{
$url_data = $_GET['json'];
$decoded_data = json_decode($url_data,true);
var_dump($decoded_data);
}
But it gives me output as NULL. What am i doing wrong?? Do i need to pass data in a different format??

Answer 1

It seems impossible to decode a JSON string without double quotes, as it's hard to determine whether a JSON string "{A:B:C}" is encoded from {"A":"B:C"} or from {"A:B":"C"}
You can use urlencode() to encode the JSON string or just ignore the extreme cases and add the double quotes manually to make the JSON string valid, hope this help :D

Answer 2

The data you're passing is not valid JSON. It doesn't have double quotes around it currently. Try this:
if (isset($_GET['json']))
{
$url_data = '"'.$_GET['json'].'"';
$decoded_data = json_decode($url_data,true);
var_dump($decoded_data);
}
Output:
string(20) "{uid:guest|10001441}"
Also, I'd suggest using POST instead of GET here.

Answer 3

If you pass it like this it will work: ?json={"uid":"guest|10001441"}
But I am not sure whether it is a proper method.

Answer 4

The JSON you have in your URL is not valid. PHP's json_decode looks for double quotes around the uid and it's value.
EDIT: Rather than storing the data in the URL as json could you not store the data as key value pairs such as
?uid=value
And then you could do something like
$data = json_encode( $_GET );

Answer 5

you can encode url parameter with base64_encode()
$json=base64_encode('{"uid":"guest|10001441"}');
url will look like this
index.php?json=eyJ1aWQiOiJndWVzdHwxMDAwMTQ0MSJ9
then do like this :-
if (isset($_GET['json']))
{
$url_data = base64_decode($_GET['json']);
$decoded_data = json_decode($url_data,true);
var_dump($decoded_data);
}