我正在尝试使用PHP从JSON提要中获取一些值。不知什么原因，我试了好几个小时都没有成功。
我试图实现的是从json提要中获得每个项目的标题，它看起来像这样：
stdClass Object
(
[rss] => stdClass Object
(
[@attributes] => stdClass Object
(
[version] => 2.0
)
[channel] => stdClass Object
(
[title] => PR.com Press Releases
[link] => http://www.PR.com/
[description] => Latest news releases from PR.com
[ttl] => 60
[image] => stdClass Object
(
[title] => PR.com Press Releases
[link] => http://www.PR.com/
[url] => http://www.PR.com/images/logo_white.jpg
)
[item] => Array
(
[0] => stdClass Object
(
[title] => Nation’s Top Online Medical Weight Loss Provider Now www.hCGTreatments.com
[link] => http://www.pr.com/press-release/669077
[guid] => http://www.pr.com/press-release/669077
[description] => <p><em>With an improved protocol and advancements in technology, HCGTreatments.com has become one of the most reliable names in online weight loss.</em></p>
[pubDate] => Sat, 30 Apr 2016 07:00:00 +0000
[dc_creator] => Diet Doc
[dc_language] => en-us
[dc_format] => text/html
[dc_identifier] => http://www.pr.com/press-release/669077
)
[1] => stdClass Object
(
[title] => Sentynl Therapeutics, Inc. Launches Its Commercial Organization
[link] => http://www.pr.com/press-release/669136
[guid] => http://www.pr.com/press-release/669136
[description] => <p>Sentynl Therapeutics, Inc. Launches Its Commercial Organization</p>
[pubDate] => Sat, 30 Apr 2016 07:00:00 +0000
[dc_creator] => Sentynl Therapeutics, Inc.
[dc_language] => en-us
[dc_format] => text/html
[dc_identifier] => http://www.pr.com/press-release/669136
)
[2] => stdClass Object
(
[title] => Professional of the Year 2015, Bruce H. Levin, is Now a Lifetime VIP in America’s Registry of Outstanding Professionals
[link] => http://www.pr.com/press-release/664848
[guid] => http://www.pr.com/press-release/664848
[description] => <p>Professional of the Year 2015, Bruce H. Levin, is Now a Lifetime VIP in America’s Registry of Outstanding Professionals</p>
[pubDate] => Sat, 30 Apr 2016 07:00:00 +0000
[dc_creator] => America's Registry of Outstanding Professionals
[dc_language] => en-us
[dc_format] => text/html
[dc_identifier] => http://www.pr.com/press-release/664848
)
)
)
)
)
我的PHP代码如下：
$url = "http://example.com/file.json"; // just an example
$json_file = file_get_contents("$url");
$json = json_decode($json_file, true);
foreach($rss->$item as $mydata)
{
echo $mydata->title . "'n";
}
我尝试了数百种变体，但未能获得所有的标题。。
也许有人能为我指明正确的方向。
谢谢：）
尝试获取类似的对象
$url = "http://example.com/file.json"; // just an example
$json_file = file_get_contents("$url");
$json = json_decode($json_file, true);
foreach($rss->$item as $mydata->$value)
{
echo $value->title . "'n";
}