PHP and SOAP

[jwwceo]

I am writing my first php SOAP application, to talk with a POS system. I have the thing working kinda, but I am still unsure exactly the relationship between my SOAP app and the WSDL the POS company gave me to copy from. There just seems to be a lot of info that I'm not sure what is for.

 

So far, when the POS sends the request to my php script, I have it working to where the data is grabbed, inserted into the DB, and the a response is sent. But I am still getting this error:

 

There was a problem communicating with the web service.  More information: Value cannot be null.

Parameter name: s

 

I am not sure what parameter name s is, or how it relates to anything.

 

Any help would be appreciated since I am more than a little lost.

 

James

 

[MadTechie]

would kinda need to see some code, basically your passing a null and it should probably be a string

[jwwceo]

here is my code:

 

<?php 

function _del_p(&$ary) {
    foreach ($ary as $k=>$v) {
        if ($k==='_p') unset($ary[$k]);
        elseif (is_array($ary[$k])) _del_p($ary[$k]);
    }
}

function ImportRMSProducts(&$string) { 

    $parser = xml_parser_create();
    xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
    xml_parse_into_struct($parser, $string, $vals, $index);
    xml_parser_free($parser);

    $mnary=array();
    $ary=&$mnary;
    foreach ($vals as $r) {
        $t=$r['tag'];
        if ($r['type']=='open') {
            if (isset($ary[$t])) {
                if (isset($ary[$t][0])) $ary[$t][]=array(); else $ary[$t]=array($ary[$t], array());
                $cv=&$ary[$t][count($ary[$t])-1];
            } else $cv=&$ary[$t];
            if (isset($r['attributes'])) {foreach ($r['attributes'] as $k=>$v) $cv['_a'][$k]=$v;}
            $cv['_c']=array();
            $cv['_c']['_p']=&$ary;
            $ary=&$cv['_c'];

        } elseif ($r['type']=='complete') {
            if (isset($ary[$t])) { // same as open
                if (isset($ary[$t][0])) $ary[$t][]=array(); else $ary[$t]=array($ary[$t], array());
                $cv=&$ary[$t][count($ary[$t])-1];
            } else $cv=&$ary[$t];
            if (isset($r['attributes'])) {foreach ($r['attributes'] as $k=>$v) $cv['_a'][$k]=$v;}
            $cv['_v']=(isset($r['value']) ? $r['value'] : '');

        } elseif ($r['type']=='close') {
            $ary=&$ary['_p'];
        }
    }    
    

    _del_p($mnary);


$xml_response = "<?xml version=\"1.0\" encoding=\"utf-8\"?>
<XMLResponse>";

mysql_connect("localhost", "dubcorpm_test", "1234") or die(mysql_error());
mysql_select_db("dubcorpm_test") or die(mysql_error());

foreach($mnary[Products][_c][ProductItem] as $k=>$v){

$productcode = $v[_c][itemCode][_v];

$xml_response.= "<Product Code=\"".$productcode."\">
                 <Error Code=\"0\">Success</Error>
                 </Product>";

mysql_query("INSERT INTO test (data,id) VALUES ('$productcode','1')") or die(mysql_error());
} 

$xml_response.= "</XMLResponse>";

return $xml_response;
}


   $server = new SoapServer(null, 
      array('uri' => "urn://www.dubcorp.com/test/soap.php"));
   $server->addFunction("ImportRMSProducts"); 
   $server->addFunction("_del_p"); 
   $server->handle(); 
?>

 

I wrote a script to test the output here:

 

http://dubcorp.com/test/soapclient.php

 

Any ideas??

[MadTechie]

only thing i can think of would be "Category Name" in the output

		<Category Name="">
		<Category Name=""/>
	</Category>

 

try using a static xml and manually change the data

[jwwceo]

most of that code is just for parsing the xml..and turning it into an array...then writing it to a DB.

 

It seems like the response it looking for a parameter named "s", but I don't see how I name the "response". Seems like the return is unnamed, when it should be in the form of a parameter.

 

I am also wondering if this matters, since the values are being written to the DB, it's just the response that is not being recognized.

 

There is prolly a simple answer I am overlooking somewhere.

 

Thanks again in advance.

 

James

[MadTechie]

Yeah, really need some more information about the POS system,

Dig out the POS manual or a sample xml that works and work by trail and error if you need to.

[jwwceo]

this is what they gave me to work off of...and Im having a hard time relating this to the actual code of writing the response. All I can think of its that they are maybe expecting an additional function called DeleteProducts, and since I dont have that yet...I am getting the error...

 

<?xml version='1.0' encoding='UTF-8'?>
<wsdl:definitions xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" targetNamespace="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<s:schema elementFormDefault="qualified" targetNamespace="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php">
<s:element name="ImportRMSProducts">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="xmlStr" type="s:string" />
</s:sequence>
</s:complexType>

</s:element>
<s:element name="ImportRMSProductsResponse">
<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="ImportRMSProductsResult" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="DeleteProducts">

<s:complexType>
<s:sequence>
<s:element minOccurs="0" maxOccurs="1" name="xmlStr" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="DeleteProductsResponse">
<s:complexType>
<s:sequence>

<s:element minOccurs="0" maxOccurs="1" name="DeleteProductsResult" type="s:string" />
</s:sequence>
</s:complexType>
</s:element>
<s:element name="string" nillable="true" type="s:string" />
</s:schema>
</wsdl:types>
<wsdl:message name="ImportRMSProductsSoapIn">
<wsdl:part name="parameters" element="tns:ImportRMSProducts" />

</wsdl:message>
<wsdl:message name="ImportRMSProductsSoapOut">
<wsdl:part name="parameters" element="tns:ImportRMSProductsResponse" />
</wsdl:message>
<wsdl:message name="DeleteProductsSoapIn">
<wsdl:part name="parameters" element="tns:DeleteProducts" />
</wsdl:message>
<wsdl:message name="DeleteProductsSoapOut">
<wsdl:part name="parameters" element="tns:DeleteProductsResponse" />

</wsdl:message>
<wsdl:message name="ImportRMSProductsHttpGetIn">
<wsdl:part name="xmlStr" type="s:string" />
</wsdl:message>
<wsdl:message name="ImportRMSProductsHttpGetOut">
<wsdl:part name="Body" element="tns:string" />
</wsdl:message>
<wsdl:message name="DeleteProductsHttpGetIn">
<wsdl:part name="xmlStr" type="s:string" />

</wsdl:message>
<wsdl:message name="DeleteProductsHttpGetOut">
<wsdl:part name="Body" element="tns:string" />
</wsdl:message>
<wsdl:message name="ImportRMSProductsHttpPostIn">
<wsdl:part name="xmlStr" type="s:string" />
</wsdl:message>
<wsdl:message name="ImportRMSProductsHttpPostOut">
<wsdl:part name="Body" element="tns:string" />

</wsdl:message>
<wsdl:message name="DeleteProductsHttpPostIn">
<wsdl:part name="xmlStr" type="s:string" />
</wsdl:message>
<wsdl:message name="DeleteProductsHttpPostOut">
<wsdl:part name="Body" element="tns:string" />
</wsdl:message>
<wsdl:portType name="RMSConfirmWSSoap">
<wsdl:operation name="ImportRMSProducts">

<wsdl:input message="tns:ImportRMSProductsSoapIn" />
<wsdl:output message="tns:ImportRMSProductsSoapOut" />
</wsdl:operation>
<wsdl:operation name="DeleteProducts">
<documentation xmlns="http://schemas.xmlsoap.org/wsdl/">This method would accept product codes of the products that need to be deleted from the database and SKU codes if the inventory on certain items needs to be reset</documentation>
<wsdl:input message="tns:DeleteProductsSoapIn" />
<wsdl:output message="tns:DeleteProductsSoapOut" />
</wsdl:operation>

</wsdl:portType>
<wsdl:portType name="RMSConfirmWSHttpGet">
<wsdl:operation name="ImportRMSProducts">
<wsdl:input message="tns:ImportRMSProductsHttpGetIn" />
<wsdl:output message="tns:ImportRMSProductsHttpGetOut" />
</wsdl:operation>
<wsdl:operation name="DeleteProducts">
<documentation xmlns="http://schemas.xmlsoap.org/wsdl/">This method would accept product codes of the products that need to be deleted from the database and SKU codes if the inventory on certain items needs to be reset</documentation>

<wsdl:input message="tns:DeleteProductsHttpGetIn" />
<wsdl:output message="tns:DeleteProductsHttpGetOut" />
</wsdl:operation>
</wsdl:portType>
<wsdl:portType name="RMSConfirmWSHttpPost">
<wsdl:operation name="ImportRMSProducts">
<wsdl:input message="tns:ImportRMSProductsHttpPostIn" />
<wsdl:output message="tns:ImportRMSProductsHttpPostOut" />
</wsdl:operation>

<wsdl:operation name="DeleteProducts">
<documentation xmlns="http://schemas.xmlsoap.org/wsdl/">This method would accept product codes of the products that need to be deleted from the database and SKU codes if the inventory on certain items needs to be reset</documentation>
<wsdl:input message="tns:DeleteProductsHttpPostIn" />
<wsdl:output message="tns:DeleteProductsHttpPostOut" />
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="RMSConfirmWSSoap" type="tns:RMSConfirmWSSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" />

<wsdl:operation name="ImportRMSProducts">
<soap:operation soapAction="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>

<wsdl:operation name="DeleteProducts">
<soap:operation soapAction="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" style="document" />
<wsdl:input>
<soap:body use="literal" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>

</wsdl:binding>
<wsdl:binding name="RMSConfirmWSHttpGet" type="tns:RMSConfirmWSHttpGet">
<http:binding verb="GET" />
<wsdl:operation name="ImportRMSProducts">
<http:operation location="/ImportRMSProducts" />
<wsdl:input>
<http:urlEncoded />
</wsdl:input>
<wsdl:output>

<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="DeleteProducts">
<http:operation location="/DeleteProducts" />
<wsdl:input>
<http:urlEncoded />
</wsdl:input>
<wsdl:output>

<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:binding name="RMSConfirmWSHttpPost" type="tns:RMSConfirmWSHttpPost">
<http:binding verb="POST" />
<wsdl:operation name="ImportRMSProducts">
<http:operation location="/ImportRMSProducts" />
<wsdl:input>

<mime:content type="application/x-www-form-urlencoded" />
</wsdl:input>
<wsdl:output>
<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
<wsdl:operation name="DeleteProducts">
<http:operation location="/DeleteProducts" />
<wsdl:input>

<mime:content type="application/x-www-form-urlencoded" />
</wsdl:input>
<wsdl:output>
<mime:mimeXml part="Body" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="RMSConfirmWS">
<wsdl:port name="RMSConfirmWSSoap" binding="tns:RMSConfirmWSSoap">

<soap:address location="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" />
</wsdl:port>
<wsdl:port name="RMSConfirmWSHttpGet" binding="tns:RMSConfirmWSHttpGet">
<http:address location="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" />
</wsdl:port>
<wsdl:port name="RMSConfirmWSHttpPost" binding="tns:RMSConfirmWSHttpPost">
<http:address location="http://www.kosmoscart.com/demo/ws/RMSConfirmWS.php" />
</wsdl:port>
</wsdl:service>

</wsdl:definitions>