RE: how can i lookup the index in a string where a regexp matches?

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> -----Original Message-----
> From: Rene Veerman [mailto:rene7705@xxxxxxxxx]
> Sent: Tuesday, November 18, 2008 8:50 AM
> To: php php
> Subject: Re:  how can i lookup the index in a string where a
> regexp matches?
> 
> Rene Veerman wrote:
> > hi, i need to search with regexps in strings, and want to know the
> > index (of the source string) at which the regexp matched. and the
> > length of the matched string, so with substitutions like \d+..
> >
> > i'm kinda in a hurry on this one, would appreciate your immediate
> > answer very much..
> >
> :D i shouldnt scan texts to fast anymore.. esp when i'm in a hurry
> 
> http://nl.php.net/manual/en/function.preg-match.php
> 
> |<?php
> $subject = "abcdef";
> $pattern = '/^def/';
> preg_match($pattern, substr($subject,3), $matches,
> PREG_OFFSET_CAPTURE);
> print_r($matches);
> ?> |
> 
> will produce
> 
> Array
> (
>     [0] => Array
>         (
>             [0] => def
>             [1] => 0
>         )
> 
> )

Are you sure about the ^? I would think '/^def/' would look for "def" at
the beginning of the line... anyway, glad to see you found out about the
PREG_OFFSET_CAPTURE flag.


// Todd

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