PHPCrawl: exclude urls anding with ?query=

I'm playing with PHPCrawl 开发者_StackOverflowand I'd like to know if anybody knows if it possible to exclude from crawling all the URLS with parameters (either if they are .html or .php)like

domain.com/article.html?showComment=1289420017718

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Add a non-follow match pattern for any URL containing a question mark:

$crawler->addNonFollowMatch(".*\?.*")

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I just foudn myself this works better

$crawler->addNonFollowMatch("/\?/");