Soap Web Service In Php

[skaterdav85]

so im trying to consume this SOAP web service, and it's returning "stdClass Object ( )". What does that mean?This is my php code

<?php$params->ID = "27";$ppl = "http://dbf065:8080/MapKeywordRecommender?wsdl";$pplRequest = new SoapClient($ppl);$result = $pplRequest->getRecommendedKeywords($params);print_r($result);?>

[justsomeguy]

That's just what $result is, it's an object. If you tell PHP to print an object it usually just prints what you're seeing. Sounds like the object doesn't have any properties, print_r will usually print those as well.

[skaterdav85]

im basically translating this web service consumption from someone who did it in java. In Java terms, they said that I should get back an array of KeywordScore objects, which are just javabeans. Do you know what that means? Im not too familiar with SOAP services in php =/.

[justsomeguy]

Java people like to use their own terminology, I'm not sure what that means. A "javabean" doesn't mean anything to me. I don't think you're setting the params correctly, I don't think you're able to do this:$params->ID = "27";without setting $params to an instance of an object first.

[skaterdav85]

well i tried changing it to:$params = "27", and it returned the same thing.This is the java code:

public interface MapKeywordRecommenderService extends Remote{	public KeywordScore[] getRecommendedKeywords(String ID) throws RemoteException;}

Looking at this, it looks like I can just pass the "getRecommendedKeywords" method a string. But im not sure why when I print the result, i get that same "stdClass Object ( )".

[justsomeguy]

public KeywordScore[] getRecommendedKeywords(String ID) throws RemoteException;That says that it returns an array of KeywordScore objects.

But im not sure why when I print the result, i get that same "stdClass Object ( )".

If you're using PHP < 5, PHP won't print properties for objects using print_r. You can also try var_dump and see if that prints anything different. As for why the method returns what it does I can't really say.

[skaterdav85]

Im using php 5.2.9. I tried var_dump($result) and i get this:object(stdClass)#2 (0) { } lolI think Im passing the method the ID correctly. My guess is that I'm printing it wrong since im dealing with an array of objects. Would you agree?

[justsomeguy]

If it was an array then it would print the array structure, but it looks like it's a generic object instead of an array.

[skaterdav85]

If it was an array then it would print the array structure, but it looks like it's a generic object instead of an array.

so is the object empty, meaning Im calling it incorrectly?

[boen_robot]

AFAIK, if a web service returns an array, PHP creates an stdClass object that should be accessible as an array (via the ArrayAccess interface). In addition to that, as your code shows, the function returns KeywordScore objects. Depending on the way the web service is created, you may have to go deeper into the hierarchy... or not.Try it like that

<?php$params = "27";$ppl = "http://dbf065:8080/MapKeywordRecommender?wsdl";$pplRequest = new SoapClient($ppl);$result = $pplRequest->getRecommendedKeywords($params)[0];print_r($result);?>

and see if that gives out any errors (you have display_errors enabled and error_reporting set to E_ALL & E_STRICT, right?).

[skaterdav85]

and see if that gives out any errors (you have display_errors enabled and error_reporting set to E_ALL & E_STRICT, right?).

display_errors is enabled, and error_reporting says 6135 for the local value and master value (not sure what that means). I tried this:

<?php$params = "27852";$ppl = "http://dbf065:8080/MapKeywordRecommender?wsdl";$pplRequest = new SoapClient($ppl);//$result = $pplRequest->getRecommendedKeywords($params);$result = $pplRequest->getRecommendedKeywords($params[0]);print_r($result);var_dump($result);?>

and my error was still the same:stdClass Object ( ) object(stdClass)#2 (0) { }Any other ideas? Could the web service not be working or turned off?

[boen_robot]

The later code you tried has a whole other meaning that isn't far from your original one.

$params[0]

means in this case (because $params is a string) the first character in the string.I think I made a mistake in forgetting how PHP deals with returned arrays in general. Try it like this:

$resultArr = $pplRequest->getRecommendedKeywords($params);$result = $resultArr[0];

[skaterdav85]

that returned a fatal error:Fatal error: Cannot use object of type stdClass as array in C:\xampp\htdocs\Aeropops.php on line 13well it looks like im being returned an object, right? I think it has to do with the hierarchy. Is there anyway I can see what that looks like?? This is a pain because whats coming to the screen isnt very helpful.

[justsomeguy]

The object doesn't have any properties, it's an empty object. If you run this:

<?phpclass testclass{  private $priv;  public $pub;    function __construct()  {	$this->priv = 'private var';	$this->pub = 'public var';  }}$obj = new testclass();print_r($obj);$json = '{"prop1": "val1", "prop2": "val2"}';$obj2 = json_decode($json);print_r($obj2);$json = '{}';$obj3 = json_decode($json);print_r($obj3);?>

it will print this:

testclass Object(	[priv:private] => private var	[pub] => public var)stdClass Object(	[prop1] => val1	[prop2] => val2)stdClass Object()

When it prints this:stdClass Object ( )That's an object with no properties. You'll probably need to check the Java code for the web service to see what it's actually doing, the function prototype says it should be returning an array.

[skaterdav85]

Maybe I am reading the WSDL file incorrectly. Looking at the WSDL file, the message input and output are not like the ones in the tutorial where its like:

<part name="value" type="xs:string"/>

Instead, there is no type and the part looks like this:

<part name="parameters" element="tns:getRecommendedKeywords" />

How do i interpret this?

[skaterdav85]

Ok well I got it working. It turns out, the following input parameter stated in the message part was an associative array:

<part name="parameters" element="tns:getRecommendedKeywords" />

getRecommendedKeywords was an associative array. I had to look at the targetNamespace in the root element <definitions> tag to figure this out. wierd....

[skaterdav85]

The results of a print_r come back like this:

stdClass Object ( [return] => Array ( [0] => stdClass Object ( [keyword] => networks [score] => 1 [source] => ieee ) [1] => stdClass Object ( [keyword] => distributed computing [score] => 1 [source] => ieee ) [2] => stdClass Object ( [keyword] => information [score] => 0.5 [source] => acm ) [3] ... (more)

can someone help me interpret what this means? Am I getting back an object arrays? How do i access a value?

[justsomeguy]

It will be easier to use View->Source to look at the output from print_r, or print it in between <pre> tags or something. PHP indents everything but the browser ignore the whitespace when it displays it.That's an object, not an array. The only property I see listed is the return property ($obj->return), which looks like an array of other objects. Each object in the return array has keyword, score, and source properties.

[skaterdav85]

I figured it out by looking at what the browser dispalyed and was able to parse it in a foreach loop. I like how viewing the source made it clearer to read though. Thanks! It rewarding when it finally works haha.