fee
1234567890
...
foo
1234567891
...
fum
1234567892
...
";
$search = 'foo';
$rdr = new XMLReader();
$rdr->xml($xml);
while($rdr->read()){
if($rdr->nodeType == XMLReader::ELEMENT && $rdr->localName == 'product') {
$prodxml = $rdr->readInnerXML();
if(strpos($prodxml, $search)) {
echo $prodxml . "\r\n";
}
}
}
$rdr->close();
?>