On 04 August 2006 11:30, Dave M G wrote:
> Jochem,
>
> Thank you for responding.
>
> >
> > does this one work?:
> > preg_replace('#^<\!DOCTYPE(.*)<ul[^>]*>#is', '', $htmlPage);
>
> Yes, that works. I don't think I would have every figured
> that out on my
> own - it's certainly much more complicated than the ereg equivalent.
>
> If I may push for just one more example of how to properly
> use regular
> expressions with preg:
>
> It occurs to me that I've been assuming that with regular expressions
> I could only remove or change specified text.
>
> What if I wanted to get rid of everything *other* than the specified
> text?
>
> Can I form an expression that would take $htmlPage and delete
> everything *except* text that is between a <li> tag and a <br> tag?
That's where capturing expressions and backreferences come in handy:
preg_replace ("/.*<li>(.*)<br>.*/", "$1", $htmlPage);
(add qualifiers and other options to taste, as before!)
Cheers!
Mike
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