XML Obtain multiple values - php

Question

I have the below XML file. There are 4 rows constantly repeated for different websites.
These are _URL _Away _Home _Draw. Each of these is prepended by the website. I need to compare all of the _Away rows to find the highest value, but there may sometimes be 1 of these rows and other times there can be as many as 32. What I would like to know is, is there a way to get these by defining the end of the string without having to explicitly declare the entire string for each website?
<XMLSOCCER.COM>
<Odds>
<Id>1547</Id>
<_10Bet_Home_Home>1.31</_10Bet_Home_Home>
<_10Bet_Home_Url>http://en.10bet.com</_10Bet_Home_Url>
<_10Bet_Home_Away>8.50</_10Bet_Home_Away>
<_10Bet_Home_Draw>5.40</_10Bet_Home_Draw>
<Bet_At_Home_Home>1.25</Bet_At_Home_Home>
<Bet_At_Home_Url>http://www.bet-at-home.com/</Bet_At_Home_Url>
<Bet_At_Home_Away>10.00</Bet_At_Home_Away>
<Bet_At_Home_Draw>5.75</Bet_At_Home_Draw>
<Bet365_Url>http://www.bet365.com/</Bet365_Url>
<Bet365_Home>1.30</Bet365_Home>
<Bet365_Away>9.00</Bet365_Away>
<Bet365_Draw>5.50</Bet365_Draw>
<BetVictor_Home>1.30</BetVictor_Home>
<BetVictor_Url>http://www.betvictor.com/</BetVictor_Url>
<BetVictor_Away>9.00</BetVictor_Away>
<BetVictor_Draw>5.40</BetVictor_Draw>
<Bwin_Home>1.28</Bwin_Home>
</Odds>
</XMLSOCCER.COM>

Answer 1

You can use XPath to fetch all nodes ending with _Away. Here's a code snippet that accomplishes what you want:
<?php
$xml = <<<XML
<XMLSOCCER.COM>
<Odds>
<Id>1547</Id>
<_10Bet_Home_Home>1.31</_10Bet_Home_Home>
<_10Bet_Home_Url>http://en.10bet.com</_10Bet_Home_Url>
<_10Bet_Home_Away>8.50</_10Bet_Home_Away>
<_10Bet_Home_Draw>5.40</_10Bet_Home_Draw>
<Bet_At_Home_Home>1.25</Bet_At_Home_Home>
<Bet_At_Home_Url>http://www.bet-at-home.com/</Bet_At_Home_Url>
<Bet_At_Home_Away>10.00</Bet_At_Home_Away>
<Bet_At_Home_Draw>5.75</Bet_At_Home_Draw>
<Bet365_Url>http://www.bet365.com/</Bet365_Url>
<Bet365_Home>1.30</Bet365_Home>
<Bet365_Away>9.00</Bet365_Away>
<Bet365_Draw>5.50</Bet365_Draw>
<BetVictor_Home>1.30</BetVictor_Home>
<BetVictor_Url>http://www.betvictor.com/</BetVictor_Url>
<BetVictor_Away>9.00</BetVictor_Away>
<BetVictor_Draw>5.40</BetVictor_Draw>
<Bwin_Home>1.28</Bwin_Home>
</Odds>
</XMLSOCCER.COM>
XML;
$sxe = new SimpleXMLElement($xml);
$nodesEndingWithAway = $sxe->xpath('//*[substring(name(),string-length(name())-3) = "Away"]');
$highestValue = 0;
$nodeName = '';
foreach ($nodesEndingWithAway as $node) {
if ((float) $node > $highestValue) {
$highestValue = (float) $node;
$nodeName = $node->getName();
}
}
echo "Highest value is {$highestValue} from node {$nodeName}.\n";
Output:
Highest value is 10 from node Bet_At_Home_Away.
Note: I think it would be possible to accomplish it with a single XPath expression without the need to process the nodes with the foreach.

Answer 2

You can do this with XPath.
$doc = new DOMDocument();
$doc->load($filename);
$xpath = new DOMXPath($doc);
$elements = $xpath->query('/XMLSOCCER.COM/Odds/*[substring(name(),string-length(name())-3) = "Away"]');
$maxValue = 0;
foreach ($elements as $element) {
$value = floatval($element->nodeValue);
$maxValue = max($maxValue, $value);
}

Answer 3

EDIT: very compressed:
$maxbid = max(array_map('floatval', $xml->xpath("//*[substring(name(),string-length(name())-" . (strlen($search) - 1) . ") = '$search']")));
in several steps:
use simplexml and xpath:
$search = "_Away";
$xml = simplexml_load_string($x);
$results = $xml->xpath("//*[substring(name(),string-length(name())-" . (strlen($search) - 1) . ") = '$search']");
Loop through your results:
foreach ($results as $result) echo "$result <br />";
Print highest result:
echo "highest: " . number_format(max(array_map('floatval', $results)), 2, '.', ',');
See it working: http://codepad.viper-7.com/iEpGz9