<?php $xml = xml_parser_create(); ?>

<?php
// code to appear on later...
$obj = new Amazon_parser;
?>

<?php
xml_set_object($xml, $obj);
xml_set_element_handler($xml, 'start_element', 'end_element');
xml_set_character_data_handler($xml, 'character_data');
xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, false);
?>

<?php
xml_parse($xml, $hits);
xml_parser_free($xml); 
?>