Php 从字符串导出数据

我有以下字符串：

{"id":3661917,"mId":2408699,"isR":false,"opps": [{"id":37794066,"optN":1,"wn":false,"rt":"1.24","fau":null},{"id":37794067,"optN":2,"wn":false,"rt":"1.01","fau":null},{"id":37794068,"optN":3,"wn":false,"rt":"5.40","fau":null},{"id":37794069,"optN":4,"wn":false,"rt":"3.36","fau":null},{"id":37794070,"optN":5,"wn":false,"rt":"11.40","fau":null}],"oTpId":7}

---

如何获取值：“optN”（例如“optN”：1）和“rt”（例如“rt”：“1.24”）？我不知道，谢谢。

这是一个JSON字符串。只需使用函数对其进行解码，并以数组形式访问项。例如：

$data = json_decode($jsonString, true);
echo $data['opps'][0]['optN']; // print first opps element optN value
echo $data['opps'][0]['rt']; // print first opps element rt value

这个字符串是一个字符串。可以使用将其转换为PHP对象

---

它的

json

字符串，您可以通过

json\u decode

来解码json字符串，所以使用

$json = '{"id":3661917,"mId":2408699,"isR":false,"opps": [{"id":37794066,"optN":1,"wn":false,"rt":"1.24","fau":null},{"id":37794067,"optN":2,"wn":false,"rt":"1.01","fau":null},{"id":37794068,"optN":3,"wn":false,"rt":"5.40","fau":null},{"id":37794069,"optN":4,"wn":false,"rt":"3.36","fau":null},{"id":37794070,"optN":5,"wn":false,"rt":"11.40","fau":null}],"oTpId":7}';
$json_array = json_decode($json,true);
if(isset($json_array['opps']) && $json_array['opps']!= false)
{
    foreach($json_array['opps'] as $jArray)
    {
        echo " optN = " .$jArray['optN'];
        echo "<br/>";
        echo " rt = " .$jArray['rt'];
        echo "<br/>";echo "<br/>";

    }
}

$json='{“id”：3661917，“mId”：2408699，“isR”：false，“opps”：[{“id”：37794066，“optN”：1，“wn”：false，“rt”：“1.24”，“fau”：null}，{“id”：37794067，“optN”：2，“wn”：false，“rt”：“1.01”，“fau”：null}，{“id”：37794068，“optN”：3，“wn”：false，”rt:“5.40”，“fau”：null}，{“id”：37794069，“optN”：4，“wn”：false”，“rt”：3.36”，“optN”：false，{“optN”：37794068”，“optN”：“id”：，“fau:null}]，“oTpId:7}'；
$json\u array=json\u decode（$json，true）；
if（isset（$json_数组['opps']）和&$json_数组['opps']！=false）
{
foreach（$json_数组['opps']作为$jArray）
{
echo“optN=”.$jArray['optN']；
回声“
”；
echo“rt=.$jArray['rt']；
回声“
”回声“
”；
}
}

从技术上讲，这是无效的JSON。@Will，我认为问题的作者复制错了。

$json = '{"id":3661917,"mId":2408699,"isR":false,"opps": [{"id":37794066,"optN":1,"wn":false,"rt":"1.24","fau":null},{"id":37794067,"optN":2,"wn":false,"rt":"1.01","fau":null},{"id":37794068,"optN":3,"wn":false,"rt":"5.40","fau":null},{"id":37794069,"optN":4,"wn":false,"rt":"3.36","fau":null},{"id":37794070,"optN":5,"wn":false,"rt":"11.40","fau":null}],"oTpId":7}';
$json_array = json_decode($json,true);
if(isset($json_array['opps']) && $json_array['opps']!= false)
{
    foreach($json_array['opps'] as $jArray)
    {
        echo " optN = " .$jArray['optN'];
        echo "<br/>";
        echo " rt = " .$jArray['rt'];
        echo "<br/>";echo "<br/>";

    }
}