PHP正则表达式提取键值逗号分隔

问题描述：

I want to extract some from a string that KEYs are separated from VALUEs by colon(:) and s separated by comma(,). The problem is that VALUEs can contain comma. As an example:

category:information technology, computer,publisher:Elsevier (EV),subject:Ecology, Evolution, Behavior and Systematics

In this example the KEYs that must extract are: category, publisher and subject. The final result must be as follow:

category = information technology, computer
publisher = Elsevier (EV)
subject = Ecology, Evolution, Behavior and Systematics

I tried to write a recursive regex but it doesn't work :

(category|publisher|subject):(.*?)(?:,(?R)|.?)

Can someone help to solve this problem. Thanks.

我想从一个字符串中提取一些字符串，这些字符串通过冒号（:)和以逗号分隔的s与VALUE分开（，）。问题是VALUE可以包含逗号。作为示例： p>

 类别：信息技术，计算机，出版商：Elsevier（EV），主题：生态，进化，行为和 Systematics 
  code>  pre> 
 
 在此示例中，必须提取的KEY包括：category，publisher和subject。
最终结果必须如下： p> 
 \  n 
  category =信息技术，computer 
publisher = Elsevier（EV）
subject =生态，进化，行为和系统学 pre> 
 
 我试过 写一个递归正则表达式，但它不起作用： p> 
 
 
 （category | publisher | subject）:(。*？）（？：，（？R）|。？）  
  code>  pre> 
 
 有人可以帮助解决这个问题。 谢谢。 p> 
  div>

答

Well, if you can add a comma to the end of the string, I think this works:

(\w+):([^:]+),

Edit:

Jonathan Kuhn is totally right:

(\w+):([^:]+)(?:,|$)

This works

PHP正则表达式提取键值逗号分隔

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