带有XML的PHP​​ Curl请求

Question

I can not for the life of me figure out how to keep the formatting of XML in a string, even when echoing the string of $data_string I get the XML stripped out and only the values remain.

Then I need to be able to do a CURL request via PHP with that string, I'm not sure if I have the right setup for that though.

Code:

$data_string = '<test><name>John Doe</name><age>22</age><city>seattle</age></test>';

$curl = curl_init($baseUrl);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, "xmlRequest=" . $data_string);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
    "Content-Length: " . strlen($data_string),
    "X-DocuSign-Authentication: $header",
    "Content-Type: text/xml",
    "Accept: text/xml" )
);
$response = curl_exec($curl);

Test:

echo $data_string;

Result:

John Doe22seattle

Answer 1

You should make sure that the page you are echoing is ALSO using the MIME type text/xml .

Another way i can think of, is to escape the html characters using htmlentities()