从SimpleXMLElement对象获取价值 [英] Get value from SimpleXMLElement Object

问题描述

我有这样的东西:

$url = "http://ws.geonames.org/findNearbyPostalCodes?country=pl&placename=";
$url .= rawurlencode($city[$i]);

$xml = simplexml_load_file($url);
echo $url."\n";
$cityCode[] = array(
    'city' => $city[$i], 
    'lat' => $xml->code[0]->lat, 
    'lng' => $xml->code[0]->lng
);

应该从地名下载XML.如果我执行print_r($xml)我会得到:

It's supposed to download XML from geonames. If I do print_r($xml) I get :

SimpleXMLElement Object
(
    [code] => Array
        (
            [0] => SimpleXMLElement Object
                (
                    [postalcode] => 01-935
                    [name] => Warszawa
                    [countryCode] => PL
                    [lat] => 52.25
                    [lng] => 21.0
                    [adminCode1] => SimpleXMLElement Object
                        (
                        )

                    [adminName1] => Mazowieckie
                    [adminCode2] => SimpleXMLElement Object
                        (
                        )

                    [adminName2] => Warszawa
                    [adminCode3] => SimpleXMLElement Object
                        (
                        )

                    [adminName3] => SimpleXMLElement Object
                        (
                        )

                    [distance] => 0.0
                )

正如您所见，我做$xml->code[0]->lat，它返回一个对象.我如何获得价值?

I do as you can see $xml->code[0]->lat and it returns an object. How can i get the value?

推荐答案

您必须将simpleXML对象转换为字符串.

You have to cast simpleXML Object to a string.

$value = (string) $xml->code[0]->lat;

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