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yahooの天気でAPI呼び出しを行っているときに、次のxmlが返されました。 $をエコーアウトすると、なぜ空白になるのですか?SimpleXMLでXMLファイルにアクセスできない
$endpoint = 'https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20weather.forecast%20where%20woeid%3D%20560743&diagnostics=true';
$xml = simplexml_load_file($endpoint) or die('failed to load xml');
$out = $xml -> query -> diagnostics -> publiclyCallable;
echo $out;
はXMLを返しました:
This XML file does not appear to have any style information associated with it. The document tree is shown below.
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="1" yahoo:created="2017-02-10T11:54:56Z" yahoo:lang="en-US">
<diagnostics>
<publiclyCallable>true</publiclyCallable>
<url execution-start-time="1" execution-stop-time="7" execution-time="6">...</url>
<user-time>8</user-time>
<service-time>6</service-time>
<build-version>2.0.92</build-version>
</diagnostics>
<results>...</results>
</query>