How to grab a piece of text with help of a php-script

[Peertje]

Hi group, I would like to show the latest aurora data on my site.
I know this is possible with help of a php-script, but I'm a nitwit with
php-scripting.
That's why I'm asking for help here.

The following url is being updated once every minute.

http://sec.noaa.gov/ftpdir/lists/ace/ace_mag_1m.txt

and contains data for the past 2 hours.

I would like to show the most recent Bx, By, Bz en Bt values (see line 21)
as following:.
Bx=x.x By=x.x Bz=x.x Bt=x.x (where x.x is the most recent value)

Does anyone know how I can do this with a small script?
Help is highly appreciated !!

Thanks in advance...

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[Rik]

Re: How to grab a piece of text with help of a php-script

Peertje wrote:

Hi group, I would like to show the latest aurora data on my site.
I know this is possible with help of a php-script, but I'm a nitwit
with php-scripting.
That's why I'm asking for help here.
>
The following url is being updated once every minute.

http://sec.noaa.gov/ftpdir/lists/ace/ace_mag_1m.txt

and contains data for the past 2 hours.
>
I would like to show the most recent Bx, By, Bz en Bt values (see
line 21)
as following:.
Bx=x.x By=x.x Bz=x.x Bt=x.x (where x.x is the most recent value)
>
Does anyone know how I can do this with a small script?
Help is highly appreciated !!

Dirty, but hardly quick:

<?php
$info =
file_get_conten ts('http://sec.noaa.gov/ftpdir/lists/ace/ace_mag_1m.txt' );
preg_match('/
(?P<Bx>-?[0-9\.]+)\s*
(?P<By>-?[0-9\.]+)\s*
(?P<Bz>-?[0-9\.]+)\s*
(?P<Bt>-?[0-9\.]+)\s*
(?P<Lat>-?[0-9\.]+)\s*
(?P<Long>-?[0-9\.]+)\s*
$/sx',$info,$matc h);
var_dump($match );
?>

File_get_conten ts is rather slow, you might want to check out
http://www.php.net/manual/en/function.fseek.php to get comments on how to
get the last line quicker.

-------------------------------------------------------------------------

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--
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[Allodoxaphobia]

Re: How to grab a piece of text with help of a php-script

On Mon, 18 Dec 2006 23:30:42 +0100, Peertje wrote:

Hi group, I would like to show the latest aurora data on my site.
I know this is possible with help of a php-script, but I'm a nitwit with
php-scripting.
That's why I'm asking for help here.
>
The following url is being updated once every minute.

http://sec.noaa.gov/ftpdir/lists/ace/ace_mag_1m.txt

and contains data for the past 2 hours.
>
I would like to show the most recent Bx, By, Bz en Bt values (see line 21)

errmmm. "the most recent" appears to be line 'LAST', not "line 21".

BTW, line 2 seems to be the timestamp of when the txt file is
(re)written -- with line 'LAST' being some 2 minutes older. (Probably
attributed to data gathering, processing, and dissemination
overhead.)

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
*** Killfiling google posts: <http//jonz.net/ng.htm>

[Peertje]

Re: How to grab a piece of text with help of a php-script

Thanks for the very quick replies.
And sorry for the "spam".

You are right about the last line.
Saw it after I posted the thread ;-)

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[Rik]

Re: How to grab a piece of text with help of a php-script

Peertje wrote:

Thanks for the very quick replies.
And sorry for the "spam".

You're sorry, but you're not doing anything about it? Nice going.

It can be done: AFAIK you're using Outlook Express, so:

- get OEQuotefix, amust when using OE on newsgroups.
- add a custom signature for your newsgroup account

Voilá, the spam of this evil company that sais it's fighting spam is in a
signature, perfectly ignored by all normal readers (and also OE if you
indeed uses OEQuotefix.
--
Rik Wasmus

[bill]

Re: How to grab a piece of text with help of a php-script

Peertje wrote:

Thanks for the very quick replies.
And sorry for the "spam".
>
You are right about the last line.
Saw it after I posted the thread ;-)
>
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Mijn Postvak In wordt beschermd door SPAMfighter
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>
>

The sig separator should be two dashes and a space ONLY, eg:

--
bill