A strange error in using amazon API

[etrader]

When I used Amazon API to capture a product details using the well known code (http://www.chipdir.nl/amazon/aws_signed_request.phps), It made this error, and consequently lots of CPU usage which made my server down.

[14-Mar-2011 20:38:01] PHP Warning:  simplexml_load_string() [<a href='function.simplexml-load-string'>function.simplexml-load-string</a>]: uestProcessingTime>0.0009990000000000</RequestProcessingTime></OperationRequest> in /home/laptop/public_html/jewelryaccessories.us/amazon.php on line 52

 

Line 51 - 60 of amazon.php is

        // parse XML
        $pxml = simplexml_load_string($response);
        if ($pxml === False)
        {
            return False; // no xml
        }
        else
        {
            return $pxml;
        }

 

 

[requinix]

What's the value of $response? If you print it to an HTML page, be sure to do a View Source - don't copy what you see on the page itself.

[etrader]

I did not see the page. I just found that the server is down (due to 100% CPU usage made by this script), and a huge error page has been created.