php - 怎么提取名称啊
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问题描述
问 题
$json = <<<EOD
{
"coinNames_btc38_cny": ["DOGE","XRP","BTS","NXT","BLK","XEM","DASH","PPC","XPM","RIC"],
"coinNames_ybc_cny": ["aaa","bbb","ccc"]
}
EOD;
$coinNames_sites = json_decode($json);
foreach ($coinNames_sites as $coinNames_site){
foreach ($coinNames_site as $coinName){
echo "$coinName";
}
}
提取出:coinNames_btc38_cny 这个名称
解决方案
foreach ($coinNames_sites as $key => $coinNames_site){
var_dump($key);
}
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