note 25364 rejected from function.preg-match by nicos

From: Date: Fri, 20 Sep 2002 16:40:36 +0000
Subject: note 25364 rejected from function.preg-match by nicos
References: 1  Groups: php.notes 
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How does this handle an expression which can validly match zero characters because every term in the pattern is optional? My guess is that such a pattern is certain to match even if no characters from the target string are subsumed. I'd be concerned about handling successful matches against zero characters if I was relying on advancing match positions to terminate a loop.

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