Example 139: Link to an Amazon.com Web Service Using SOAP (PHP)

'; } PANEL='ListDetails' { DESC='Page body'; ITERATIONS='10'; DETAILS=' '; } PANEL='ListFooter' { DESC='Page footer'; DETAILS='

$prodName Authors: List Price: $prodListPrice Used Price: $prodUsedPrice

Start with a "PHP Record Listing" template.

In the program\'s ListHeader HTML segment, find the line

<div id="contents">

and add the following HTML code immediately afterwards:

     <form name="srchform" action="" method="POST">
        <input type="hidden" name="task" value="search">
        <table>
          <tr>
            <td>Search for author/book:</td>            
            <td> </td>
            <td><input type="text" name="book" value=""></td>
            <td><input type="Submit" value="Search"></td>
          </tr>
          <tr>
          	<td colspan="4" align="center"><b>Search displays first 10 items.</b></td>
          </tr>
         </table> 
        </form>
        <br>
        <table border="1">

Replace the HTML code on the \'ListDetails\' segment with the following:

	<tr>
	  <td class="text" width="300">
	    <a href="\\$prodURL">\\$prodName</a>    
	    <br>
	    <strong>Authors:</strong> <?php echo(implode(", ", \\$prodAuthors)); ?>
	    <br><br>
	    <strong>List Price: $prodListPrice</strong>
	    <br>
	    <span style="color: red;">Used Price: \\$prodUsedPrice</span>    
	  </td>
	  <td class="text" valign="middle" align="center">  	
	    <img border="1" src="\\$prodImgURLsm" border="0" alt="book cover">
	  </td>
	</tr>
	<tr>
	  <td colspan="2"> </td>
	</tr>

Replace the PHP source code with the following:

// Global variables
global \\$prodName;
global \\$prodURL;
global \\$prodImgURLsm;
global \\$prodImgURLlg;
global \\$prodListPrice;
global \\$prodUsedPrice;
global \\$prodAuthors;



// Do the task
\\$pf_task = strtolower(\\$pf_task);
switch(\\$pf_task)
{
	case \'default\':
	mySOAPClient();
	break;
	
	case \'search\':
	mySOAPClient();
	break;
}

// Implement a simple SOAP client to connect to Amazon.com 
function mySOAPClient()
{
	// Retrieve global variables
	foreach(\\$GLOBALS as \\$arraykey=>\\$arrayvalue) 
	{
		if (\\$arraykey[0]!=\'_\' && \\$arraykey != "GLOBALS")
			global \\$\\$arraykey;
	}
	
	// Retrieve search parameter
	if (isset(\\$_REQUEST[\'book\']))
		\\$keyword = \\$_REQUEST[\'book\'];
	else 
		\\$keyword = \'\';
	
	
	if(\\$keyword == \'\')
	{
		wrtseg(\'ListHeader\');
		wrtseg(\'ListFooter\');
		return;	
	}
	else
	{
		// Create SoapClient objects in WSDL mode.
		\\$client = 
		new SoapClient("http://soap.amazon.com/schemas2/AmazonWebServices.wsdl");
		\\$params = array(
		\'keyword\'    => \\$keyword,
		\'page\'       => 1,
		\'mode\'       => \'books\',
		\'tag\'        => \'preinheimerco-20\',
		\'type\'       => \'lite\',
		\'devtag\'     => \'1MV0BNXEHBAQ0BJTBQR2\'
		);
		
		wrtseg(\'ListHeader\');
		
		// Utilize Amazon\'s AWS API method calls to retrieve the information
		// For more information refer to http://www.amazon.com/webservices
		// Here is a brief list:
		// BrowseNodeSearchRequest() - retrieve a list of catalog items attached
		//                             to a particular node in the Amazon database;
		// ASINSearchRequest()       - retrieve detailed information for a given 
		//                             product code;
		// KeywordSearchRequest()    - perform a keyword search on the Amazon database;
		// SellerSearchRequest()     - perform a search for products listed by 
		//                             third-party sellers;
		// PowerSearchRequest()      - perform an advanced search on the Amazon 
		//                             database;
		// SimilaritySearchRequest() - perform a search for similar items, given a  
		//                             specific product code.
		
		try{
			
			\\$result = \\$client->KeywordSearchRequest(\\$params);
		}
		catch(Exception \\$e)
		{
			echo(\'Message: \' . \\$e->getMessage());
			exit;	
		}
		
		// The resulting array will contain the following elements:		
		//
		// [Url]
		// [Asin]
		// [ProductName]
		// [Catalog]
		// [Authors]
		// [ReleaseDate]
		// [Manufacturer]
		// [ImageUrlSmall]
		// [ImageUrlMedium]
		// [ImageUrlLarge]
		// [ListPrice]
		// [UsedPrice]
		// [Availability]
		//
		foreach (\\$result->Details as \\$product)
		{
			\\$prodName = \\$product->ProductName;
			\\$prodURL = \\$product->Url;
			\\$prodImgURLsm = \\$product->ImageUrlSmall;
			\\$prodImgURLlg = \\$product->ImageUrlLarge;
			\\$prodListPrice = \\$product->ListPrice;
			\\$prodUsedPrice = \\$product->UsedPrice;
			\\$prodAuthors = \\$product->Authors;			
			
			wrtseg(\'ListDetails\');
		} 
		wrtseg(\'ListFooter\');
	}
}
--------------------------------------------------------------------------------
Notice the bolded text above. You will have to create a key for your own development purposes.
Please visit \'http://www.amazon.com/webservices\' for more information.

Compile and run your program.

Program Definition: soapamazon.pdw

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