PHP RegExpr error Unkown modifier '('

Posted by Anonymous on Stack Overflow See other posts from Stack Overflow or by Anonymous
Published on 2010-05-22T14:44:21Z Indexed on 2010/05/22 14:50 UTC
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php

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regex

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error

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unknown

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modifier

I have this regular expression:

([http://some.url.com/index.php?showtopic=\"]*)([0-9]+(?:\.[0-9]*)?)

its for extracting links to topics from forum

Now when i use it in my script

$url = "([http://some.url.com/index.php?showtopic=\"]*)([0-9]+(?:\.[0-9]*)?)";

preg_match_all spits: "Unknown modifier '('"

Can anyone help me with this obviously stupid problem

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