调用新浪天气的API(xml格式返回),可以得到xml字符串,可是装载到对象中后却输出不出来,是怎么回事?
<?php /** * */ $w = new Weather(); echo $w->getWeather(); class Weather { private $apiUrl = 'http://php.weather.sina.com.cn/xml.php?city=%B1%B1%BE%A9&password=DJOYnieT8234jlsK&day=0'; public function getWeather() { $xml = file_get_contents($this->apiUrl); $result = simplexml_load_string($xml); $weather = $result->pollution;//xml中的一个子节点 return $weather; } } ?>
调用新浪天气的API(xml格式返回),可以得到xml字符串,可是装载到对象中后却输出不出来,是怎么回事?
<?php /** * */ $w = new Weather(); echo $w->getWeather(); class Weather { private $apiUrl = 'http://php.weather.sina.com.cn/xml.php?city=%B1%B1%BE%A9&password=DJOYnieT8234jlsK&day=0'; public function getWeather() { $xml = file_get_contents($this->apiUrl); $result = simplexml_load_string($xml); $weather = $result->pollution;//xml中的一个子节点 return $weather; } } ?>
$weather = $result->pollution;//xml中的一个子节点
修改为:
$weather = $result->Weather->pollution;