将JSON字符串转换为数组

Question

我有这个JSON字符串

{"ticker":{"high":736.45099,"low":681,"avg":708.725495,"vol":13038780.63684,"vol_cur":18382.55965,"last":726,"buy":726,"sell":724.5,"updated":1388242741,"server_time":1388242743}}

在执行json_decode()之后，如何获取“ last ”参数？

Answer 1

像这样

<?php
$json='{"ticker":{"high":736.45099,"low":681,"avg":708.725495,"vol":13038780.63684,"vol_cur":18382.55965,"last":726,"buy":726,"sell":724.5,"updated":1388242741,"server_time":1388242743}}';
$json_arr=json_decode($json,true);
echo $json_arr['ticker']['server_time'];//"prints" 1388242743 which is the last param "server time"

Answer 2

将json_decode与参数json string和TRUE一起使用 。为TRUE时，返回的对象将转换为关联数组。

<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';     
var_dump(json_decode($json, true));    
?>

http://php.net/json_decode