How to write this regex in PHP?

Posted by user198729 on Stack Overflow See other posts from Stack Overflow or by user198729
Published on 2010-04-12T09:14:48Z Indexed on 2010/04/12 9:23 UTC
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php

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regex

I have a word list:word_1,word_2,...word_n

If the input text is like this:

... word_i xxx word_k ...

I want the output to be(the out most):

word_i xxx word_k

How to implement it?

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