php parsing json error

<code><?php $json = '{"detail":[{"name":24,"country":China,"location":{"city":chengdu},"code":2000}';
$obj = json_decode($json,true);
echo $obj->detail[0]->name;
echo $obj->detail[0]->location->city;
?>
</code>

The code is as above, how should I modify it?

Reply content:

<code><?php $json = '{"detail":[{"name":24,"country":China,"location":{"city":chengdu},"code":2000}';
$obj = json_decode($json,true);
echo $obj->detail[0]->name;
echo $obj->detail[0]->location->city;
?>
</code>

The code is as above, how should I modify it?

Your JSON format is not correct. Once the json string is written, you can copy it to http://www.bejson.com/ and check it

You$obj = json_decode($json,true);You can directly echo $obj[0]['name'] afterwards. After using json_decode($json, true), it will be converted into an array instead of an object. Arrays can be manipulated

$obj = json_decode($json,true); What is exposed in this way is an array. Of course it is wrong if you use the object method to retrieve it
$obj = json_decode($json); What is parsed in this way is an object

Don’t construct json data manually. Be sure to use PHP function to generate json json_encode(). I checked your json. It’s not standard json data at all. A syntax error is reported