regex - PHP preg_match question -

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How can I get three words in the following string with Perl compatible regular expression?

word1 # $ Word2 # $ word3

I do not know the actual word "word1, word2 and word3" in advance, I know only the separator, which is # $.

And I can not use the word limit because I have a multibiotic encoding, which means that the string can have non-ASCII characters like umlauts, which are not recognized by the \ w control character .

Try this regular expression: 

  / (\ w +) # \ $ (\ W +) # \ $ (\ w +) /

Edit to give us more information After (see comments for this answer): 

  / ((?: [^ #] + | [^ $]) *) # \ $ ((: [^ #] | # [^ $]) *) # \ $ ((: [^ #] | # [^ $]) *) /

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