Re: Negative Look Ahead Regex - Code Mistake or Bug?

From: Date: Sun, 17 Aug 2008 23:41:11 +0000
Subject: Re: Negative Look Ahead Regex - Code Mistake or Bug?
References: 1  Groups: php.general 
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Hi Cameron, As far as I can tell, you have an error in your syntax. You're using a - (hyphen) character in the first match, but Regex uses this to define a range of characters. It seems that if you don't escape it, the whole thing behaves a little strangely. For example, using your URL as the source string: http://www.domain.com/path1/path2.php?PHPSESSID=2u0ccaffoh6jaeapkke35qpp87; This regular expression /^(http:\/\/www\.domain\.com([\/\.\-\_\w]*))/ matches [!MATCH!]?PHPSESSID=2u0ccaffoh6jaeapkke35qpp87; and this /^(http:\/\/www\.domain\.com([\/\.-\_\w]*))/ matches the whole URL The only difference is the hyphen has been escaped in the first expression. I'm not sure if this will help any, but it's definitely something I noticed in the regex. Ash www.ashleysheridan.co.uk

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