How to encode token using curl - php

Question

STEP - 1
I am sending a xml request using CURL and its returning "TOKEN" to me. Please find the below code here:
<root><request><type>mykey</type><username>myusername</username><password>mypassword</password></request></root>
$curl_handle = curl_init();
curl_setopt($curl_handle, CURLOPT_URL, $curl_url);// passing API URL here
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl_handle, CURLOPT_POST, 1);
curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $xml_strign); // passing xml as a string
$result = curl_exec ($curl_handle);
In this above code executing fine and returning Token as a result.
STEP - 2
In second step, I have to send above token to get my result but not getting result.Please find the below code:
$xml = "<root>
<request>
<type>myparam</type>
<token>lGcvdOnetuxK0paE+AIxE93GB85DURIpOeoBw8quqOs=</token>
</request>
</root>";
curl_setopt($curl_handle, CURLOPT_URL, $curl_url);
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl_handle, CURLOPT_POST, 1);
curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $xml);
$result = curl_exec ($curl_handle);
curl_close ($curl_handle);
print_r($result);
May be this Token is contains special charter as i guess, so that I am not getting result. I have seen console url response status in browser its 200 ok.
I do appreciate advance for your help.

Answer 1

I think you have a problem with your post data. You should read details about CURLOPT_POSTFIELDS here :
http://php.net/manual/fr/function.curl-setopt.php
So your xml variable should probably be defined like this:
$xml = array("token" => "lGcvdOnetuxK0paE+AIxE93GB85DURIpOeoBw8quqOs");
At least it should be an array.