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POParsing/Interpreting XML retrieved from a web service in PHP
 

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    <p>I am sending a HTTP GET request to the web service of an external company. This is coming back fine, but I am running into problems with the interpretation of what comes back. The response is sent in XML. I have tried to use SimpleXML (which I admit, I am not familiar with) and cannot figure it out. What I need to do is assign something received in the XML to a PHP variable and then echo it. The variable I need to assign is "SessionToken" to $sessionid. How do I do this?</p> <p>Here is an example of my code:</p> <pre><code> error_reporting(E_ALL); $request = 'http://ws.examplesite.com/test/test.asmx/TestFunction?Packet=&lt;Packet&gt;&lt;Email&gt;test@example.com&lt;/Email&gt;&lt;Password&gt;testpassword&lt;/Password&gt;&lt;/Packet&gt;'; $session = curl_init($request); curl_setopt($session, CURLOPT_HEADER, true); curl_setopt($session, CURLOPT_RETURNTRANSFER, true); $response = curl_exec($session); curl_close($session); $status_code = array(); preg_match('/\d\d\d/', $response, $status_code); switch( $status_code[0] ) { case 200: break; case 503: die('Your call to Web Services failed and returned an HTTP status of 503. That means: Service unavailable. An internal problem prevented us from returning data to you.'); break; case 403: die('Your call to Web Services failed and returned an HTTP status of 403. That means: Forbidden. You do not have permission to access this resource, or are over your rate limit.'); break; case 400: die('Your call to Web Services failed and returned an HTTP status of 400. That means: Bad request. The parameters passed to the service did not match as expected. The exact error is returned in the XML response.'); break; default: die('Your call to Web Services returned an unexpected HTTP status of:' . $status_code[0]); } if (!($xml = strstr($response, '&lt;?xml'))) { $xml = null; } echo $xml; </code></pre> <p><br /> Here is an example of the response: <br /></p> <pre><code> &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt; &lt;string xmlns=&quot;http://ws.example.com/resumes/&quot;&gt; &lt;Packet&gt; &lt;Errors /&gt; &lt;SessionToken&gt;1234567890&lt;/SessionToken&gt; &lt;/Packet&gt; &lt;/string&gt; </code></pre> <p><br /> How can I extract variables from XML and assign them to PHP variable?</p>
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    1. USShattuck
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    1. CORead the PHP manual. There are thousands of tutorials on the web how to do this.
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      1. UScweiske
 

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