如何从字符串表示的数组中获取特定信息？

Question

当我把这个http://api.hostip.info/get_json.php放在url栏中时，它给我一个这种格式的数组如何从中提取信息？

{"country_name":"PAKISTAN","country_code":"PK","city":"Lahore","ip":"180.178.147.131"}

Answer 1

在PHP中使用json_decode()

<?php
$jsonstringfromyourapi='{"country_name":"PAKISTAN","country_code":"PK","city":"Lahore","ip":"180.178.147.131"}';
$arr=json_decode($jsonstringfromyourapi,1);

foreach($arr as $k=>$v)
{
echo "$k = $v<br>";
}

Demo