PHP Can't get data back from a curl call - php

Question

I'm sure this has been answered, but I just can't figure out the right question to ask the search, so here goes:
I have a calling program that's doing a curl call to another program - however I'm not getting anything back from the called program.
Here's the calling program (Please excuse the rookie coding - I'm learning as I go with this project)....
<?php
session_start();
$user = "user";
$pass = "pass";
$part = "12345";
$strConnect = "AppServer://1.2.3.4/appsrv";
$strUser = "cono91|oper=1234";
$_SESSION["part"] = $part;
$_SESSION["strConnect"] = $strConnect;
$_SESSION["strUser"] = $strUser;
$_SESSION["response"] = "init";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://5.6.7.8/test/Pricing.php');
curl_setopt($ch, CURLOPT_POST, true);
$data = array('part' => $part,'strConnect' => $strConnect,'strUser' =>
$strUser);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$r = curl_exec($ch);
curl_close($ch);
$xml = simplexml_load_string($r);
var_dump($_SESSION); /* Just returns the $_SESSION var's I set above */
?>
And what it's calling:
<?php
session_start();
$part = $_SESSION['part'];
$strConnect = $_SESSION['strConnect'];
$strUser = $_SESSION['strUser'];
//$part = "341241";
//$strConnect = "AppServer://1.2.3.4/appsrv";
//$strUser = "cono=9|oper=xxx";
$soapUrl = "http://5.6.7.8/api/ApiService.asmx?op=Pricing";
$xml_post_string = '<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<Pricing xmlns="X.WS">
<connectString>' .$strConnect. '</connectString>
<userCode>' .$strUser. '</userCode>
<requestObject>
<customerNumber>55555</customerNumber>
<warehouse>WHSE</warehouse>
<quantity>1</quantity>
<productCode>' .$part. '</productCode>
</requestObject>
</Pricing>
</soap:Body>
</soap:Envelope>';
$headers = array(
"POST /api/ApiService.asmx HTTP/1.1",
"Host: 5.6.7.8",
"Content-Type: text/xml; charset=utf-8",
"Content-Length: ".strlen($xml_post_string),
"SOAPAction: X.WS/Pricing"
);
$url = $soapUrl;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_post_string);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($ch);
curl_close($ch);
$pos = strpos($response,"<OEPricingResult>");
$rx = substr($response,$pos,strlen($response));
$response1 = str_replace("</soap:Body>","",$rx);
$response2 = str_replace("</soap:Envelope>","",$response1);
$response3 = str_replace("</OEPricingResponse>","",$response2);
$response3 = "<xml>" .$response3. "</xml>";
$_SESSION["response"] = $response3;
var_dump($_SESSION);
print_r($response3); /* Gives me the output from the curl call this program makes
?>
So when program #1 does it's surl call to program #2 - it just returns nothing. So I forced in the variables in program #2 ran it stand alone and get the output I expected (in a command line and web call). I've tried to return the data in every way I can figure out - but after a few days of this, I just don't know the next question to ask.
So - how do I get the data from program #2 back to program #1?
I appreciate any help I can get on this....

Answer 1

A script invoked through curl doesn't inherit the session variables from the calling script. You're sending those parameters in the CURLOPT_POSTFIELDS, and you need to read them from $_POST, not $_SESSION.
So in the second script, you should use:
$part = $_POST['part'];
$strConnect = $_POST['strConnect'];
$strUser = $_POST['strUser'];