请教一个简单的正则提取问题

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

不仅需要提取 body,还要把 transTime 也提取出来。规则怎么写？

body

str

transtime

提取

15 replies • 2018-03-07 14:30:08 +08:00

cnqncom

Mar 6, 2018

$re = '/"Title":"([^"]+)",/';

Telegram

Mar 6, 2018 via iPhone

标准 json，你为啥要用正则

cnqncom

Mar 6, 2018

@Telegram 只想提取里面的这两个值

shifangjumie

Mar 6, 2018

json_decode 之后取不出来么？

zhuzhuyule

Mar 6, 2018

一次匹配：
```
reg1=/,\s*"body":"([^"]*)"[\w\W]*?,\s*"transTime":"([^"]*)"/
```

循环匹配：
```
reg2=/,\s*"(body|transTime)":"([^"]*)"/g
```

riko42

Mar 6, 2018 via Android

简单版本:
```
"body":"[^"]+"
```
和
```
"transTime":"[\w]+"
```
正则不见得快多少，用 Json 解析更方便

MuscleOf2016

Mar 6, 2018

推荐一个网站，妈妈再也不用怕我写正则了。
http://www.txt2re.com/index-javascript.php3?s={%22returnCode%22:%220%22,%22resultCode%22:%220%22,%22sign%22:%2219333CD7F9710A104DA5D815709697D2%22,%22outChannelNo%22:%222017120100401000000017%22,%22status%22:%2202%22,%22mchId%22:%22000000010000000002%22,%22channel%22:%22wxPubQR%22,%22body%22:%22%26%2325910;%26%2321333;%26%2325903;%26%2320184;%22,%22outTradeNo%22:%2220171201150337579753%22,%22amount%22:0.01,%22transTime%22:%2220171201150337%22}&6