On Thu, Aug 2, 2012 at 1:49 AM, Tolga <kacmaztolga@xxxxxxxxx> wrote:
> hi, i have a question, i dont know what keywords to search, so im asking
> here.
>
> while using preg_match, there are lots of thing that can be written as
> $pattern.
> for example:
> preg_match("/php/i", "PHP is the web scripting language of choice.")
>
> what is the meaning of /i ?
> or '@^(?:http://)?([^/]+)@i' there are lots of chars here,
>
> or this: /(?P<name>\w+): (?P<digit>\d+)/
> /[^\\d\\sa-zA-Z$_]/
> /^[a-zA-Z\p{Cyrillic}0-9\s\-]+$/u (there is a extra "/u" )
>
> #^http:\/\/(.*)\.(gif|png|jpg)$#i
> #<head>(.*?)<\/head>#si
>
> there is lots and lots of different usage of these.
>
> my question is, where can i find a very detailed information about these ? i
> want and need to know whats what about these.
>
> Thanks,
> tolga.
>
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Take a look at this page:
http://www.troubleshooters.com/codecorn/littperl/perlreg.htm
here is a little tool to play with different variations as well:
http://rubular.com/
--
Paul Halliday
http://www.pintumbler.org/
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