如何使用PHP中的正则表达式在字符串中搜索可以按任何顺序排列的子字符串(How to search a string for substrings that can be in any order using regular expressions in PHP)

 我目前正在使用以下列格式输出JSON数据的Web服务： 
 
{"ID":1291,"Name":"Houses of the Holy","Artist":"Led Zeppelin","Year":1973}
 
 但是，从一个项目到下一个项目的顺序不一致。 例如： 
 
{"ID":2958,"Label":"Reprise Records","Name":"Electric Ladyland","Year":1968}
 
 当然，我不能编写依赖于统一顺序的属性的正则表达式，因为顺序因项目而异（尽管它们始终以ID开头）。 
 
 我会使用'，''作为分隔符使用preg_split，但偶尔会有一个跟踪列表，如下所示： 
 
{"ID":9237,"Tracklist":[{"Track1":"Taxman","Track2":"Eleanor Rigby"}]}
 
 ......这会弄乱它。 
 
 如何使用正则表达式搜索可能以任何顺序出现的子字符串，或者可能根本不显示？ 或者我是否必须在Web服务返回的每个项目上运行多个正则表达式，每个项目对应一个可能的属性？ 

I'm currently working with a web service that is outputting JSON data in the following format:
 
{"ID":1291,"Name":"Houses of the Holy","Artist":"Led Zeppelin","Year":1973}
 
However, the order isn't consistent from one item to the next. For example:
 
{"ID":2958,"Label":"Reprise Records","Name":"Electric Ladyland","Year":1968}
 
Naturally I can't write a regular expression that depends on the attributes being in a uniform order, since the order varies from one item to the next (although they always start with ID).
 
I would use preg_split using ',"' as the delimiter, but there will occasionally be a tracklisting, like this:
 
{"ID":9237,"Tracklist":[{"Track1":"Taxman","Track2":"Eleanor Rigby"}]}
 
...which would mess it up.
 
How can I use a regular expression to search for substrings that may appear in any order, or perhaps not appear at all? Or will I have to run multiple regular expressions on each item the web services returns, one for each possible attribute?

原文：