关于json格式数据中直接获取某个指定字段的值

[自嘲者]

[size=24px][size=18px]如何获取json格式数据中某个指定字段的值？
如下json格式的数据：
{"returnCode":"0","resultCode":"0","sign":"19333CD7F9710A104DA5D815709697D2","outChannelNo":"2017120100401000000017","status":"02","mchId":"000000010000000002","channel":"wxPubQR","body":"收单支付","outTradeNo":"20171201150337579753","amount":0.01,"transTime":"20171201150337"}
我要直接获取body字段的值，如何不用json_decode的方法得到“”收单支付“”

[xuzuning]

json_decode就是最简单的方法

[黄袍披身]

正则 切割 stripos .... 方法很多不过有点『做』

[小熊开发]

建议用json_decode 也可用正则

$re = '/"body":"([^"]+)"/';
$str = '{"returnCode":"0","resultCode":"0","sign":"19333CD7F9710A104DA5D815709697D2","outChannelNo":"2017120100401000000017","status":"02","mchId":"000000010000000002","channel":"wxPubQR","body":"收单支付","outTradeNo":"20171201150337579753","amount":0.01,"transTime":"20171201150337"}';
preg_match_all($re, $str, $matches);
print_r($matches[1]);

[小熊开发]

$re = '/"body":"([^"]+)",/';
$str = '{"returnCode":"0","resultCode":"0","sign":"19333CD7F9710A104DA5D815709697D2","outChannelNo":"2017120100401000000017","status":"02","mchId":"000000010000000002","channel":"wxPubQR","body":"收单支付","outTradeNo":"20171201150337579753","amount":0.01,"transTime":"20171201150337"}';
preg_match_all($re, $str, $matches[1]);
print_r($matches);

[自嘲者]

好的，谢谢！

[nanF7]

json_decode 把他转出数组 然后 直接获取 就可以了

[一生小白]

json_decode简单方便快捷