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PHP and access XML Web Service

Posted on 2014-01-30
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Last Modified: 2014-02-01
I am trying to, at least for now, make a connection to a web service using php in a web page. The information below is all I have received from the creator of the service. I am not sure how to begin. The code below is not functional, since you need membership, but wondering if there are any clues on what I need code in order to call the url using the get method so I can get the XML result.


GET /xmlsearch.asmx/SearchInventory?User=string&Key=string&Part=string&Mfg=string&DateCode=string&DateCodeCompareType=string&MinQuantity=string&StockFlag=string&PricesOnly=string&PreferredVendorsOnly=string&Region=string&SearchType=string&MaxResults=string&PageNum=string&Sort=string HTTP/1.1
Host: xmlsearch.mysite.com
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length

<?xml version="1.0" encoding="utf-8"?>
<DataSet xmlns="http://XMLSearch.mysite.com/XMLSearch">
  <schema xmlns="http://www.w3.org/2001/XMLSchema">schema</schema>xml</DataSet>
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Question by:tarrigo
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16 Comments
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 39822765
You can probably read from the URL with PHP file_get_contents().  When you get the XML response from the URL, please post it here and we can show you how to process it.
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Author Comment

by:tarrigo
ID: 39822818
I should explain overall what  I am going to do. I am going to take the results of an XML web service and place it in table of database. I had accomplished this years ago in classic asp, but php has me a bit confused when it comes to the XML web service retrieval part.

So for instance, just for practice sake I read and used the code from the url you left above. The code I used was:

<?php
$homepage = file_get_contents('http://www.w3schools.com/xml/plant_catalog.xml');
echo $homepage;
?>

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and it brought back the XML response of:


<?xml version="1.0" encoding="UTF-8"?>
<!-- Edited by XMLSpy -->
<CATALOG>
      <PLANT>
            <COMMON>Bloodroot</COMMON>
            <BOTANICAL>Sanguinaria canadensis</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$2.44</PRICE>
            <AVAILABILITY>031599</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Columbine</COMMON>
            <BOTANICAL>Aquilegia canadensis</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$9.37</PRICE>
            <AVAILABILITY>030699</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Marsh Marigold</COMMON>
            <BOTANICAL>Caltha palustris</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Sunny</LIGHT>
            <PRICE>$6.81</PRICE>
            <AVAILABILITY>051799</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Cowslip</COMMON>
            <BOTANICAL>Caltha palustris</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$9.90</PRICE>
            <AVAILABILITY>030699</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Dutchman's-Breeches</COMMON>
            <BOTANICAL>Dicentra cucullaria</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$6.44</PRICE>
            <AVAILABILITY>012099</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Ginger, Wild</COMMON>
            <BOTANICAL>Asarum canadense</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$9.03</PRICE>
            <AVAILABILITY>041899</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Hepatica</COMMON>
            <BOTANICAL>Hepatica americana</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$4.45</PRICE>
            <AVAILABILITY>012699</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Liverleaf</COMMON>
            <BOTANICAL>Hepatica americana</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$3.99</PRICE>
            <AVAILABILITY>010299</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Jack-In-The-Pulpit</COMMON>
            <BOTANICAL>Arisaema triphyllum</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$3.23</PRICE>
            <AVAILABILITY>020199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Mayapple</COMMON>
            <BOTANICAL>Podophyllum peltatum</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$2.98</PRICE>
            <AVAILABILITY>060599</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Phlox, Woodland</COMMON>
            <BOTANICAL>Phlox divaricata</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$2.80</PRICE>
            <AVAILABILITY>012299</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Phlox, Blue</COMMON>
            <BOTANICAL>Phlox divaricata</BOTANICAL>
            <ZONE>3</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$5.59</PRICE>
            <AVAILABILITY>021699</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Spring-Beauty</COMMON>
            <BOTANICAL>Claytonia Virginica</BOTANICAL>
            <ZONE>7</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$6.59</PRICE>
            <AVAILABILITY>020199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Trillium</COMMON>
            <BOTANICAL>Trillium grandiflorum</BOTANICAL>
            <ZONE>5</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$3.90</PRICE>
            <AVAILABILITY>042999</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Wake Robin</COMMON>
            <BOTANICAL>Trillium grandiflorum</BOTANICAL>
            <ZONE>5</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$3.20</PRICE>
            <AVAILABILITY>022199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Violet, Dog-Tooth</COMMON>
            <BOTANICAL>Erythronium americanum</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$9.04</PRICE>
            <AVAILABILITY>020199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Trout Lily</COMMON>
            <BOTANICAL>Erythronium americanum</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$6.94</PRICE>
            <AVAILABILITY>032499</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Adder's-Tongue</COMMON>
            <BOTANICAL>Erythronium americanum</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$9.58</PRICE>
            <AVAILABILITY>041399</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Anemone</COMMON>
            <BOTANICAL>Anemone blanda</BOTANICAL>
            <ZONE>6</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$8.86</PRICE>
            <AVAILABILITY>122698</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Grecian Windflower</COMMON>
            <BOTANICAL>Anemone blanda</BOTANICAL>
            <ZONE>6</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$9.16</PRICE>
            <AVAILABILITY>071099</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Bee Balm</COMMON>
            <BOTANICAL>Monarda didyma</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$4.59</PRICE>
            <AVAILABILITY>050399</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Bergamot</COMMON>
            <BOTANICAL>Monarda didyma</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$7.16</PRICE>
            <AVAILABILITY>042799</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Black-Eyed Susan</COMMON>
            <BOTANICAL>Rudbeckia hirta</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Sunny</LIGHT>
            <PRICE>$9.80</PRICE>
            <AVAILABILITY>061899</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Buttercup</COMMON>
            <BOTANICAL>Ranunculus</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$2.57</PRICE>
            <AVAILABILITY>061099</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Crowfoot</COMMON>
            <BOTANICAL>Ranunculus</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$9.34</PRICE>
            <AVAILABILITY>040399</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Butterfly Weed</COMMON>
            <BOTANICAL>Asclepias tuberosa</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Sunny</LIGHT>
            <PRICE>$2.78</PRICE>
            <AVAILABILITY>063099</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Cinquefoil</COMMON>
            <BOTANICAL>Potentilla</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$7.06</PRICE>
            <AVAILABILITY>052599</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Primrose</COMMON>
            <BOTANICAL>Oenothera</BOTANICAL>
            <ZONE>3 - 5</ZONE>
            <LIGHT>Sunny</LIGHT>
            <PRICE>$6.56</PRICE>
            <AVAILABILITY>013099</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Gentian</COMMON>
            <BOTANICAL>Gentiana</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$7.81</PRICE>
            <AVAILABILITY>051899</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Blue Gentian</COMMON>
            <BOTANICAL>Gentiana</BOTANICAL>
            <ZONE>4</ZONE>
            <LIGHT>Sun or Shade</LIGHT>
            <PRICE>$8.56</PRICE>
            <AVAILABILITY>050299</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Jacob's Ladder</COMMON>
            <BOTANICAL>Polemonium caeruleum</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$9.26</PRICE>
            <AVAILABILITY>022199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Greek Valerian</COMMON>
            <BOTANICAL>Polemonium caeruleum</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$4.36</PRICE>
            <AVAILABILITY>071499</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>California Poppy</COMMON>
            <BOTANICAL>Eschscholzia californica</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Sun</LIGHT>
            <PRICE>$7.89</PRICE>
            <AVAILABILITY>032799</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Shooting Star</COMMON>
            <BOTANICAL>Dodecatheon</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Mostly Shady</LIGHT>
            <PRICE>$8.60</PRICE>
            <AVAILABILITY>051399</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Snakeroot</COMMON>
            <BOTANICAL>Cimicifuga</BOTANICAL>
            <ZONE>Annual</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$5.63</PRICE>
            <AVAILABILITY>071199</AVAILABILITY>
      </PLANT>
      <PLANT>
            <COMMON>Cardinal Flower</COMMON>
            <BOTANICAL>Lobelia cardinalis</BOTANICAL>
            <ZONE>2</ZONE>
            <LIGHT>Shade</LIGHT>
            <PRICE>$3.02</PRICE>
            <AVAILABILITY>022299</AVAILABILITY>
      </PLANT>
</CATALOG>
0
 
LVL 43

Expert Comment

by:Chris Stanyon
ID: 39822950
Once you've loaded in your XML string, you'd create a new simpleXMLElement and then you access the data from that. Using your XML as an example, something like this:

//load the XML file as a string
$xml = file_get_contents('data.xml');

//create a new SimpleXMLElement from the string
$plants = new SimpleXMLElement($xml);

//Loop through the XML
foreach ($plants as $plant):
	//examine each PLANT	
	var_dump($plant);
	
	//get some specific nodes
	echo $plant->COMMON;
	echo $plant->BOTANICAL;
endforeach;

Open in new window

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LVL 110

Expert Comment

by:Ray Paseur
ID: 39822988
From this you can see that the XML is converted into an object that contains an array named "PLANT" with 36 elements.  Each element of the PLANT array is itself a PHP object (of parallel construction) giving details about the  particular plant.

<?php // RAY_temp_tarrigo.php
error_reporting(E_ALL);
echo '<pre>';

// SEE http://www.experts-exchange.com/Software/Server_Software/Web_Servers/Q_28352829.html

// LOCATION OF THE TEST DATA
$url = 'http://www.w3schools.com/xml/plant_catalog.xml';

// READ THE TEST DATA AND MAKE AN OBJECT
$xml = file_get_contents($url);
$obj = SimpleXML_Load_String($xml);

// SHOW WHAT WE GOT
var_dump($obj);

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LVL 110

Accepted Solution

by:
Ray Paseur earned 500 total points
ID: 39822993
This shows how to use an iterator like PHP foreach() to access the elements of the array and match data in the elements.

<?php // RAY_temp_tarrigo.php
error_reporting(E_ALL);
echo '<pre>';

// SEE http://www.experts-exchange.com/Software/Server_Software/Web_Servers/Q_28352829.html

// LOCATION OF THE TEST DATA
$url = 'http://www.w3schools.com/xml/plant_catalog.xml';

// READ THE TEST DATA AND MAKE AN OBJECT
$xml = file_get_contents($url);
$obj = SimpleXML_Load_String($xml);

// ACTIVATE THIS TO SHOW WHAT WE GOT
// var_dump($obj);

// SHOW HOW TO USE AN ITERATOR TO ACCESS THE OBJECTS IN THE ARRAY
foreach ($obj->PLANT as $thing)
{
    if ($thing->COMMON == 'Columbine')
    {
        echo PHP_EOL;
        echo PHP_EOL . $thing->BOTANICAL . ' COSTS ' . $thing->PRICE;
    }
}

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0
 

Author Closing Comment

by:tarrigo
ID: 39823043
This last comment from Ray really helped a lot. After I tweaked it a bit I could see how I could bring all the results back from the XML list. I assume that PHP_EOL; takes  it to the of the records. Thus why I got one result back. I was able to modify it now so it would bring back all the results. I can also see how I can pick the nodes I need. Very helpful. I thank you so much for the help.
0
 
LVL 43

Expert Comment

by:Chris Stanyon
ID: 39823060
Not sure how the accepted answer is different to the one I provided earlier, but hey-ho!

PHP_EOL is an end of line character (for adding new lines after a string)
0
 

Author Comment

by:tarrigo
ID: 39823069
Well, I will explain the reasoning behind why I did what I did. When I used your example in some testing I got back a lot of information not just the actual value of a particular node. I just wanted basically the value like "flower" or Patunia or something like that. The other example I got that info back after doing some tweaking. I wanted to give credit to you, but a moderator told me that I needed to be specific when choosing a solution since it really needs to be the actual solution. I might have been too literal in the way I interpreted what they told me, but that was why I did what I did. If I could give credit to you, I gladly would. I learned something from you definitely.
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Expert Comment

by:Chris Stanyon
ID: 39823075
The reason you got everything back is because of the var_dump() function - it was put in so you could see exactly what you had access to in the loop. Ray's code also had the var_dump() but it was commented out.

For future reference, you can accept more than one solution as the answer - in fact you're encouraged to do this when several experts help you to get answers - whichever moderator told you to accept one answer is simply wrong!

Pleased you got it working though ;)
0
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 39825687
Thanks for the points and thanks for using EE.  

To clarify, PHP_EOL is a predefined and context-aware constant for the end-of-line character.  Different OS environments choose different end-of-line characters with \n, \r, \r\n, etc.  PHP_EOL sorts this out for you and makes the code more portable across different systems.

Best regards, ~Ray
0
 

Author Comment

by:tarrigo
ID: 39825835
I actually tried to adapt what I learned from your posts and it seems to not be working right now. It is a new XML query. If I just put the url in the browser it does bring back data. However, trying to access it the way you did i get nothing back in the web page. I modified my code in the foreach as follows:

foreach ($obj->Inventory as $thing)
{
  
       echo $thing->Quantity . ' is the total ' . $thing->CountryName . '<br />';

}

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The end result when I just put the url in the browser to test the XML format looks like the following in the attachment. Sorry had to blur out some stuff since it contains logon info.
Untitled-1.jpg
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LVL 43

Expert Comment

by:Chris Stanyon
ID: 39826539
The data you posted originally is nothing like the jpg you've just shown us. That doesn't even look like XML so I'm not surprised that you can't get it to work.

What was the point of posting the original data is it doesn't represent what you're actually working with?

If you want us to help you, you need to post your working data set.
0
 

Author Comment

by:tarrigo
ID: 39826542
I did not have access to the account yet. The data I was pulling I have to pay for. I thought I could use another source of data to learn the concepts and then apply to what I would have to pay for. I decided to pay for the service when I  though I would be able to traverse the data.
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Expert Comment

by:Chris Stanyon
ID: 39826558
OK.

Like I said though, if you need help, you'll have to post your data. The JPG doesn't look like XML but I could be wrong - post it up and I'll have a look.
0
 
LVL 43

Expert Comment

by:Chris Stanyon
ID: 39826560
Ah - just realised you've accepted the answer to this qustion, so just post another question with your real data attached.
0
 

Author Comment

by:tarrigo
ID: 39826565
I actually thought that this question was no longer available earlier today as subject matter that was considered still unsolved, so I posted the question with the image file as a new question. Ray actually just replied to it. Sorry for the mess, but I did not see a way to reopen this original question.
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