<?php
// Make a request, passing required information via GET
$xml = simplexml_load_file(
    "http://xml.amazon.com/onca/xml3?KeywordSearch=PHP"
);
$books = $xml->Details;
foreach ($books as $book) {
    echo $book->ProductName.' '.$book->OurPrice."<br />\n";
}
?>
Output
Advanced PHP for Flash $27.99
Advanced PHP for Web Professionals $27.99
Advanced PHP Programming $34.99
Ajia keizaiken : sono kanosei to Nihon no yakuwari : Dai 3-kai PHP Kyoto Shinpojumu repoto
Apache, MySQL, and PHP Web Development All-in-One Desk Reference For Dummies $24.49
Apache, MySQL, and PHP Weekend Crash Course $17.49
Beginning Php ,Mysql and Apache $39.99
Beginning PHP 5 $39.99
Beginning PHP 5 and MySQL: From Novice to Professional $49.99
Beginning PHP, Apache, and MySQL Web Development $27.99