Re: Regex question

> > If you want the [ to be escaped in the regex you have to "double-escape" > it: > > $x = "\ \["; (sorry, the two \ should be together without a space but my > > stupid mail-app converts the string thinking it's an network address) > > so $x will contain "\[" as you want ( the first backslash escapes the > > second). > > Hi Stefan, > > Thanks very much for that, it does make sense :-) > > Unfortunately it still hasn't fixed the problem... I suppose my question has > now boiled down to "do I need to escape !, <, or - in a regex?" :-) > > Cheers > Jon here the expression again: >>>$tags = array ("script", >>> "<!--<!\[CDATA\[", >>> "\]\]>-->"); >>>foreach ($tags as $currentTag) >>> if (preg_match ("/^<\/". $currentTag. "/", $content)) >>> // do something As far as I can see (notice: I'm not a regex-king ;) the regex seems correct to me. The only thing I'm wondering about is the "/^<" (second last line of the citation). Together with your expression in the array it results in preg_match("/<\/<!\[CDATA\[/", ...) I'm wondering if that (</<![CDATA...) is really what you want to match (and not only <![CDATA without the trailing </). If it's not that then I suggest you to do simple example scripts where you have none-dynamic regex's to test if the expression works (that's the way I do that stuff - no really because I ever think I'd THIS TIME be able to do it without, but I haven't thought right till today ;) lot of luck mastering your expressions stefan rusterholz