Я новичок в php и кодировании в целом. Я пытаюсь разобрать xml с удаленного устройства и получить доступ к данным определенного значения. Например, я хотел бы отобразить значение 9-го уровня группы 9, и я не могу заставить его работать. Какие-нибудь советы?
Вот xml:
<?xml version="1.0" encoding="ISO-8859-1" ?> - <Device id="S10011" hb="1935"> <Group id="1" /> <Group id="2" /> <Group id="3" /> <Group id="4" /> <Group id="5" /> <Group id="6" /> <Group id="7" /> <Group id="8" /> - <Group id="9"> - <Probe id="99"> <Value>1.0</Value> </Probe> - <Probe id="1"> <Value>86.4</Value> </Probe> - <Probe id="2"> <Value>45.7</Value> </Probe> - <Probe id="3"> <Value>2.9</Value> </Probe> - <Probe id="4"> <Value>1.0</Value> </Probe> </Group> </Device> Вот мой PHP-код для чтения в xml:
<?php // Establish a port 80 connection $http = fsockopen("192.168.2.106",80); // Send a request to the server $req = "GET /xmldata HTTP/1.0\r\n"; $req .= "Host: 192.168.2.106\r\n"; $req .= "Connection: Close\r\n\r\n"; fputs($http, $req); // Output the request results while(!feof($http)) { $xmlstr .= fgets($http, 2048); } // Close the connection fclose($http); $xml = simplexml_load_string($xmlstr); print_r($xml); $myValue = $xml->xpath('//Group[@ID="9"]/Probe[@ID="1"]/value'); echo $myValue; ?>
A print_r ($ xml); показывает следующую информацию:
SimpleXMLElement Object ( [@attributes] => Array ( [id] => S10011 [hb] => 158221 ) [Group] => Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 1 ) [0] => ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 2 ) [0] => ) [2] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 3 ) [0] => ) [3] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 4 ) [0] => ) [4] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 5 ) [0] => ) [5] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 6 ) [0] => ) [6] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 7 ) [0] => ) [7] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 8 ) [0] => ) [8] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 9 ) [Probe] => Array ( [0] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 99 ) [Value] => 2.0 ) [1] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 1 ) [Value] => 89.6 ) [2] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 2 ) [Value] => 42.7 ) [3] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 3 ) [Value] => 3.9 ) [4] => SimpleXMLElement Object ( [@attributes] => Array ( [id] => 4 ) [Value] => 1.0 ) ) ) ) )