finding pattern with preg_match_all

[Han]

Determining the pattern below has got my stumped.

I have a page of HTML and need to find all occurrences of the following
pattern:

score=999999999 9&

The number shown can be 5-10 characters in length. I would like to extract
only the number, stripping off the "score=" and "&".

I have tried the following without success:

preg_match_all( "|score=(\d{5,1 0})&|is", $html, $out);

The page includes numerous occurrences of the pattern yet the $out array
only contains two items with both values equaling "array".

Any help would be greatly appreciated.

Thanks.

[John Dunlop]

Re: finding pattern with preg_match_all

Han wrote:
[color=blue]
> preg_match_all( "|score=(\d{5,1 0})&|is", $html, $out);
>
> The page includes numerous occurrences of the pattern yet the $out
> array only contains two items with both values equaling "array".[/color]

Well, your regex works. (Note that the s modifier in your pattern
is superfluous, as it only affects dot metacharacters. )

But $out is an array containing two arrays. That is, an array of
arrays. $out[0] is an array of full pattern matches; $out[1] is an
array of first parenthesized subpattern matches. To access just
the numbers, you might use:

foreach($out[1] as $number)
echo $number;

You can set flags in preg_match_all that change how the arrays are
filled.

http://www.php.net/manual/en/function.preg-match-all.php

--
Jock

[Han]

Re: finding pattern with preg_match_all

Yes, that makes perfect sense.

I'm quite familiar with php.net (couldn't survive without in fact), but I
began to doubt my syntax when the right number of results didn't seem to
appear. My regexp was working all along, but I wasn't outputting it
correctly (dumb!)

Sigh. Thanks for the clarification.

"John Dunlop" <john+usenet@jo hndunlop.info> wrote in message
news:MPG.19e888 5e1eb54b9198977 4@news.freeserv e.net...[color=blue]
> Han wrote:
>[color=green]
> > preg_match_all( "|score=(\d{5,1 0})&amp;|is", $html, $out);
> >
> > The page includes numerous occurrences of the pattern yet the $out
> > array only contains two items with both values equaling "array".[/color]
>
> Well, your regex works. (Note that the s modifier in your pattern
> is superfluous, as it only affects dot metacharacters. )
>
> But $out is an array containing two arrays. That is, an array of
> arrays. $out[0] is an array of full pattern matches; $out[1] is an
> array of first parenthesized subpattern matches. To access just
> the numbers, you might use:
>
> foreach($out[1] as $number)
> echo $number;
>
> You can set flags in preg_match_all that change how the arrays are
> filled.
> http://www.php.net/manual/en/functio...-match-all.php
>
> --
> Jock[/color]

[Pedro]

Re: finding pattern with preg_match_all

Han wrote:
[...][color=blue]
> My regexp was working all along, but I wasn't outputting it
> correctly (dumb!)[/color]

When debugging arrays I find the construct

<?php
echo '<pre>'; print_r($array) ; echo '</pre>';
?>

very enlightning.


--
I have a spam filter working.
To mail me include "urkxvq" (with or without the quotes)
in the subject line, or your mail will be ruthlessly discarded.

[Paulus Magnus]

Re: finding pattern with preg_match_all


"Pedro" <hexkid@hotpop. com> wrote in message
news:blmn00$dt4 kq$1@ID-203069.news.uni-berlin.de...[color=blue]
> Han wrote:
> [...][color=green]
> > My regexp was working all along, but I wasn't outputting it
> > correctly (dumb!)[/color]
>
> When debugging arrays I find the construct
>
> <?php
> echo '<pre>'; print_r($array) ; echo '</pre>';
> ?>
>
> very enlightning.[/color]

I agree but I also use the fancy_vardump function from the user contributed
notes on php.net for var_dump. It's a lot better at displaying the contents
of arrays. If I get really bogged down I open up phpEd and step-thru the
code and examine the arrays as they're being used.

Paulus