我正在尝试解析 Twitter 趋势数据以仅隔离趋势标签(而非主题)，然后回应它们或将它们保存到变量中。目前我有以下代码:
$json_output=json_decode(file_get_contents("https://api.twitter.com/1/trends/23424977.json"),true);
print_r($json_output);
给出以下输出:
Array
(
[0] => Array
(
[as_of] => 2012-01-19T18:13:39Z
[trends] => Array
(
[0] => Array
(
[promoted_content] =>
[query] => %23youknowdamnwell
[name] => #youknowdamnwell
[events] =>
[url] => http://twitter.com/search/%23youknowdamnwell
)
[1] => Array
(
[query] => %23WhyGuysNeedPrenups
[name] => #WhyGuysNeedPrenups
[promoted_content] =>
[events] =>
[url] => http://twitter.com/search/%23WhyGuysNeedPrenups
)
[2] => Array
(
[query] => TWUG
[url] => http://twitter.com/search/TWUG
[promoted_content] =>
[name] => TWUG
[events] =>
)
[3] => Array
(
[query] => %22The%20Bark%20Side%22
[name] => The Bark Side
[promoted_content] =>
[events] =>
[url] => http://twitter.com/search/%22The%20Bark%20Side%22
)
[4] => Array
(
[query] => %22Happy%20National%20Popcorn%20Day%22
[name] => Happy National Popcorn Day
[promoted_content] =>
[events] =>
[url] => http://twitter.com/search/%22Happy%20National%20Popcorn%20Day%22
)
[5] => Array
(
[query] => %22Marianne%20Gingrich%22
[name] => Marianne Gingrich
[events] =>
[url] => http://twitter.com/search/%22Marianne%20Gingrich%22
[promoted_content] =>
)
[6] => Array
(
[query] => %22Johnny%20Otis%22
[promoted_content] =>
[url] => http://twitter.com/search/%22Johnny%20Otis%22
[events] =>
[name] => Johnny Otis
)
[7] => Array
(
[query] => %22iBooks%202%22
[url] => http://twitter.com/search/%22iBooks%202%22
[promoted_content] =>
[events] =>
[name] => iBooks 2
)
[8] => Array
(
[query] => %22Heat%20vs%20Lakers%22
[name] => Heat vs Lakers
[promoted_content] =>
[events] =>
[url] => http://twitter.com/search/%22Heat%20vs%20Lakers%22
)
[9] => Array
(
[query] => %22Taylor%20Hall%22
[name] => Taylor Hall
[promoted_content] =>
[events] =>
[url] => http://twitter.com/search/%22Taylor%20Hall%22
)
)
[created_at] => 2012-01-19T18:09:12Z
[locations] => Array
(
[0] => Array
(
[name] => United States
[woeid] => 23424977
)
)
)
)
我如何仅回应此输出中的两个趋势标签？我敢肯定这真的很简单，但我不是受过训练的程序员(这是针对心理学研究项目的)而且我有点迷路了。
非常感谢!
最佳答案
foreach($json_output[0]['trends'] as $trend) {
if ($trend['name'][0] === '#') {
echo $trend['name'];
}
}
如果您最多想要 2 个趋势:
$count = 0;
foreach($json_output[0]['trends'] as $trend) {
if ($trend['name'][0] === '#') {
echo $trend['name'];
$count++;
if ($count === 2) break;
}
}
关于php - 将 Twitter 趋势输出解析为 PHP 中的数组，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8953968/