php-general Digest 18 May 2010 22:30:48 -0000 Issue 6751
Topics (messages 305295 through 305307):
Touch an entry of a zip archive.
305295 by: Bastien Helders
305304 by: Richard Quadling
Re: preg_replace: avoiding double replacements
305296 by: Andre Polykanine
305297 by: Peter Lind
305300 by: Ashley Sheridan
305301 by: Peter Lind
305302 by: Ashley Sheridan
305303 by: Peter Lind
305306 by: Andre Polykanine
dompdf class problem
305298 by: saeed ahmed
Re: Authentification and session management
305299 by: Ashley Sheridan
305305 by: Robert Cummings
html analyzer
305307 by: Rene Veerman
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----------------------------------------------------------------------
--- Begin Message ---
Hello list,
I wanted to know, is it possible to change the modified time of a specific
entry in the ziparchive? Or is it possible to set the modified time of a
file when packing the file, so each file preserve its modified time?
Best Regards,
Bastien
--- End Message ---
--- Begin Message ---
On 18 May 2010 10:32, Bastien Helders <eldroskan...@gmail.com> wrote:
> Hello list,
>
> I wanted to know, is it possible to change the modified time of a specific
> entry in the ziparchive? Or is it possible to set the modified time of a
> file when packing the file, so each file preserve its modified time?
>
> Best Regards,
> Bastien
>
The modified time should be the modified time of the file when it was
added to the archive.
If you touch() the file before you add it to the archive, then the new
time will be used.
But the phrase ", so each file preserve its modified time", suggests
that the modified time is NOT remembered.
If so, I would consider that a bug.
But, if you are using extractTo(), then you could use statIndex() to
read the archive to find the modified time and then to touch() the
created file with that time.
--
-----
Richard Quadling
"Standing on the shoulders of some very clever giants!"
EE : http://www.experts-exchange.com/M_248814.html
EE4Free : http://www.experts-exchange.com/becomeAnExpert.jsp
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
ZOPA : http://uk.zopa.com/member/RQuadling
--- End Message ---
--- Begin Message ---
Hello Peter,
Hm... I see I need to specify what I'm really doing. Actually, I need
to change the letters in the text. It's a famous and ancient crypting
method: you divide the alphabet making two parts, then you change the
letters of one part with letters for other part (so A becomes N, B
becomes O, etc., and vice versa). it works fine and slightly with
strtr or str_replace... but only if the text is not in utf-8 and it
doesn't contain any non-English letters such as Cyrillic what I need.
What my regex does is the following: it sees an A, well it changes it
to N; then it goes through the string and sees an N... what does it
do? Surely, it changes it back to A! I hoped (in vain) that there
exists a modifier preventing this behavior... but it seems that it's
false(
Thanks!
--
With best regards from Ukraine,
Andre
Skype: Francophile; Wlm&MSN: arthaelon @ yandex.ru; Jabber: arthaelon @
jabber.org
Yahoo! messenger: andre.polykanine; ICQ: 191749952
Twitter: m_elensule
----- Original message -----
From: Peter Lind <peter.e.l...@gmail.com>
To: Andre Polykanine <an...@oire.org>
Date: Tuesday, May 18, 2010, 10:19:51 AM
Subject: [PHP] preg_replace: avoiding double replacements
On 18 May 2010 09:04, Andre Polykanine <an...@oire.org> wrote:
[snip]
> Andre Polykanine wrote:
>> Hello everyone,
>>
>> Sorry for bothering you again.
>> Today I met a problem exactly described by a developer in users' notes
>> that follow the preg_replace description in the manual:
>> info at gratisrijden dot nl
>> 02-Oct-2009 02:48
>> if you are using the preg_replace with arrays, the replacements will apply
>> as subject for the patterns later in the array. This means replaced values
>> can
>> be replaced again.
>>
>> Example:
>> <?php
>> $text =
>> 'We want to replace BOLD with the <boldtag> and OLDTAG with the <newtag>';
>>
>> $patterns
>> = array(
>> '/BOLD/i',
>> '/OLDTAG/i');
>> $replacements
>> = array(
>> '<boldtag>',
>> '<newtag>');
>>
>> echo preg_replace
>> ($patterns, $replacements, $text);
>> ?>
>>
>> Output:
>> We want to replace <b<newtag>> with the <<b<newtag>>tag> and <newtag> with
>> the <newtag>
>>
>> Look what happend with BOLD.
>>
>> Is there any solution to this besides any two-step sophisticated trick
>> like case changing?
>> Thanks!
>>
Use better regexes: either match for word endings or use a delimiter
in your markers (i.e. ###BOLD### instead of BOLD).
Regards
Peter
--
<hype>
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--- End Message ---
--- Begin Message ---
On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> Hello Peter,
>
> Hm... I see I need to specify what I'm really doing. Actually, I need
> to change the letters in the text. It's a famous and ancient crypting
> method: you divide the alphabet making two parts, then you change the
> letters of one part with letters for other part (so A becomes N, B
> becomes O, etc., and vice versa). it works fine and slightly with
> strtr or str_replace... but only if the text is not in utf-8 and it
> doesn't contain any non-English letters such as Cyrillic what I need.
> What my regex does is the following: it sees an A, well it changes it
> to N; then it goes through the string and sees an N... what does it
> do? Surely, it changes it back to A! I hoped (in vain) that there
> exists a modifier preventing this behavior... but it seems that it's
> false(
> Thanks!
Hmmm, what comes to mind is using your string as an array and
translating one character after another, building your output string
using a lookup table. Not entirely sure how that will play with utf8
characters, you'd have to try and see.
I don't think you'll get any of PHPs string functions to do the work
for you - they'll do the job in serial, not parallel.
Regards
Peter
--
<hype>
WWW: http://plphp.dk / http://plind.dk
LinkedIn: http://www.linkedin.com/in/plind
Flickr: http://www.flickr.com/photos/fake51
BeWelcome: Fake51
Couchsurfing: Fake51
</hype>
--- End Message ---
--- Begin Message ---
On Tue, 2010-05-18 at 13:09 +0200, Peter Lind wrote:
> On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> > Hello Peter,
> >
> > Hm... I see I need to specify what I'm really doing. Actually, I need
> > to change the letters in the text. It's a famous and ancient crypting
> > method: you divide the alphabet making two parts, then you change the
> > letters of one part with letters for other part (so A becomes N, B
> > becomes O, etc., and vice versa). it works fine and slightly with
> > strtr or str_replace... but only if the text is not in utf-8 and it
> > doesn't contain any non-English letters such as Cyrillic what I need.
> > What my regex does is the following: it sees an A, well it changes it
> > to N; then it goes through the string and sees an N... what does it
> > do? Surely, it changes it back to A! I hoped (in vain) that there
> > exists a modifier preventing this behavior... but it seems that it's
> > false(
> > Thanks!
>
> Hmmm, what comes to mind is using your string as an array and
> translating one character after another, building your output string
> using a lookup table. Not entirely sure how that will play with utf8
> characters, you'd have to try and see.
> I don't think you'll get any of PHPs string functions to do the work
> for you - they'll do the job in serial, not parallel.
>
> Regards
> Peter
>
> --
> <hype>
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> Flickr: http://www.flickr.com/photos/fake51
> BeWelcome: Fake51
> Couchsurfing: Fake51
> </hype>
>
If you're wanting to use the Caesar cypher (for that's what it is) then
why not just modify the entire string, character by character, to use a
character code n characters ahead. For example, a capital A is ascii 65,
you want to change it to an N to add 14 to that. Just keep n the same
throughout and it's easy to convert back.
Thanks,
Ash
http://www.ashleysheridan.co.uk
--- End Message ---
--- Begin Message ---
On 18 May 2010 13:32, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
>
> On Tue, 2010-05-18 at 13:09 +0200, Peter Lind wrote:
>
> On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> > Hello Peter,
> >
> > Hm... I see I need to specify what I'm really doing. Actually, I need
> > to change the letters in the text. It's a famous and ancient crypting
> > method: you divide the alphabet making two parts, then you change the
> > letters of one part with letters for other part (so A becomes N, B
> > becomes O, etc., and vice versa). it works fine and slightly with
> > strtr or str_replace... but only if the text is not in utf-8 and it
> > doesn't contain any non-English letters such as Cyrillic what I need.
> > What my regex does is the following: it sees an A, well it changes it
> > to N; then it goes through the string and sees an N... what does it
> > do? Surely, it changes it back to A! I hoped (in vain) that there
> > exists a modifier preventing this behavior... but it seems that it's
> > false(
> > Thanks!
>
> Hmmm, what comes to mind is using your string as an array and
> translating one character after another, building your output string
> using a lookup table. Not entirely sure how that will play with utf8
> characters, you'd have to try and see.
> I don't think you'll get any of PHPs string functions to do the work
> for you - they'll do the job in serial, not parallel.
>
> Regards
> Peter
>
> --
> <hype>
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> Flickr: http://www.flickr.com/photos/fake51
> BeWelcome: Fake51
> Couchsurfing: Fake51
> </hype>
>
>
> If you're wanting to use the Caesar cypher (for that's what it is) then why
> not just modify the entire string, character by character, to use a character
> code n characters ahead. For example, a capital A is ascii 65, you want to
> change it to an N to add 14 to that. Just keep n the same throughout and it's
> easy to convert back.
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
>
You probably overlooked the part where the OP points out he's not
using ascii but utf8. If it was just ascii, using str_rot13() would be
the weapon of choice I'd say (note that adding 14 to every character
of an ascii string will turn lots of it into gibberish - you have to
wrap round when you reach a certain point).
Regards
Peter
--
<hype>
WWW: http://plphp.dk / http://plind.dk
LinkedIn: http://www.linkedin.com/in/plind
Flickr: http://www.flickr.com/photos/fake51
BeWelcome: Fake51
Couchsurfing: Fake51
</hype>
--- End Message ---
--- Begin Message ---
On Tue, 2010-05-18 at 13:46 +0200, Peter Lind wrote:
> On 18 May 2010 13:32, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
> >
> > On Tue, 2010-05-18 at 13:09 +0200, Peter Lind wrote:
> >
> > On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> > > Hello Peter,
> > >
> > > Hm... I see I need to specify what I'm really doing. Actually, I need
> > > to change the letters in the text. It's a famous and ancient crypting
> > > method: you divide the alphabet making two parts, then you change the
> > > letters of one part with letters for other part (so A becomes N, B
> > > becomes O, etc., and vice versa). it works fine and slightly with
> > > strtr or str_replace... but only if the text is not in utf-8 and it
> > > doesn't contain any non-English letters such as Cyrillic what I need.
> > > What my regex does is the following: it sees an A, well it changes it
> > > to N; then it goes through the string and sees an N... what does it
> > > do? Surely, it changes it back to A! I hoped (in vain) that there
> > > exists a modifier preventing this behavior... but it seems that it's
> > > false(
> > > Thanks!
> >
> > Hmmm, what comes to mind is using your string as an array and
> > translating one character after another, building your output string
> > using a lookup table. Not entirely sure how that will play with utf8
> > characters, you'd have to try and see.
> > I don't think you'll get any of PHPs string functions to do the work
> > for you - they'll do the job in serial, not parallel.
> >
> > Regards
> > Peter
> >
> > --
> > <hype>
> > WWW: http://plphp.dk / http://plind.dk
> > LinkedIn: http://www.linkedin.com/in/plind
> > Flickr: http://www.flickr.com/photos/fake51
> > BeWelcome: Fake51
> > Couchsurfing: Fake51
> > </hype>
> >
> >
> > If you're wanting to use the Caesar cypher (for that's what it is) then why
> > not just modify the entire string, character by character, to use a
> > character code n characters ahead. For example, a capital A is ascii 65,
> > you want to change it to an N to add 14 to that. Just keep n the same
> > throughout and it's easy to convert back.
> >
> > Thanks,
> > Ash
> > http://www.ashleysheridan.co.uk
> >
> >
>
> You probably overlooked the part where the OP points out he's not
> using ascii but utf8. If it was just ascii, using str_rot13() would be
> the weapon of choice I'd say (note that adding 14 to every character
> of an ascii string will turn lots of it into gibberish - you have to
> wrap round when you reach a certain point).
>
> Regards
> Peter
>
> --
> <hype>
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> Flickr: http://www.flickr.com/photos/fake51
> BeWelcome: Fake51
> Couchsurfing: Fake51
> </hype>
>
I gave the example as Ascii because I knew the code for A off the top of
my head, I don't see a reason why it won't work for utf, the characters
still have incremental codes.
Also, is gibberish really an issue to worry about? The Caesar cypher is
already rendering the string unreadable.
Thanks,
Ash
http://www.ashleysheridan.co.uk
--- End Message ---
--- Begin Message ---
On 18 May 2010 13:43, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
>
> On Tue, 2010-05-18 at 13:46 +0200, Peter Lind wrote:
>
> On 18 May 2010 13:32, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
> >
> > On Tue, 2010-05-18 at 13:09 +0200, Peter Lind wrote:
> >
> > On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> > > Hello Peter,
> > >
> > > Hm... I see I need to specify what I'm really doing. Actually, I need
> > > to change the letters in the text. It's a famous and ancient crypting
> > > method: you divide the alphabet making two parts, then you change the
> > > letters of one part with letters for other part (so A becomes N, B
> > > becomes O, etc., and vice versa). it works fine and slightly with
> > > strtr or str_replace... but only if the text is not in utf-8 and it
> > > doesn't contain any non-English letters such as Cyrillic what I need.
> > > What my regex does is the following: it sees an A, well it changes it
> > > to N; then it goes through the string and sees an N... what does it
> > > do? Surely, it changes it back to A! I hoped (in vain) that there
> > > exists a modifier preventing this behavior... but it seems that it's
> > > false(
> > > Thanks!
> >
> > Hmmm, what comes to mind is using your string as an array and
> > translating one character after another, building your output string
> > using a lookup table. Not entirely sure how that will play with utf8
> > characters, you'd have to try and see.
> > I don't think you'll get any of PHPs string functions to do the work
> > for you - they'll do the job in serial, not parallel.
> >
> > Regards
> > Peter
> >
> > --
> > <hype>
> > WWW: http://plphp.dk / http://plind.dk
> > LinkedIn: http://www.linkedin.com/in/plind
> > Flickr: http://www.flickr.com/photos/fake51
> > BeWelcome: Fake51
> > Couchsurfing: Fake51
> > </hype>
> >
> >
> > If you're wanting to use the Caesar cypher (for that's what it is) then why
> > not just modify the entire string, character by character, to use a
> > character code n characters ahead. For example, a capital A is ascii 65,
> > you want to change it to an N to add 14 to that. Just keep n the same
> > throughout and it's easy to convert back.
> >
> > Thanks,
> > Ash
> > http://www.ashleysheridan.co.uk
> >
> >
>
> You probably overlooked the part where the OP points out he's not
> using ascii but utf8. If it was just ascii, using str_rot13() would be
> the weapon of choice I'd say (note that adding 14 to every character
> of an ascii string will turn lots of it into gibberish - you have to
> wrap round when you reach a certain point).
>
> Regards
> Peter
>
> --
> <hype>
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> Flickr: http://www.flickr.com/photos/fake51
> BeWelcome: Fake51
> Couchsurfing: Fake51
> </hype>
>
>
> I gave the example as Ascii because I knew the code for A off the top of my
> head, I don't see a reason why it won't work for utf, the characters still
> have incremental codes.
>
> Also, is gibberish really an issue to worry about? The Caesar cypher is
> already rendering the string unreadable.
You normally want output in the same range that you encode from (i.e.
you're remapping within the alphabet, not within the entire range of
printable characters) if you're doing a caesar/rot13.
Regards
Peter
--
<hype>
WWW: http://plphp.dk / http://plind.dk
LinkedIn: http://www.linkedin.com/in/plind
Flickr: http://www.flickr.com/photos/fake51
BeWelcome: Fake51
Couchsurfing: Fake51
</hype>
--- End Message ---
--- Begin Message ---
Hello Peter,
Good point. And more than that, I make a decrypting script, also... so
gibberish defenitely is an issue)
--
With best regards from Ukraine,
Andre
Skype: Francophile; Wlm&MSN: arthaelon @ yandex.ru; Jabber: arthaelon @
jabber.org
Yahoo! messenger: andre.polykanine; ICQ: 191749952
Twitter: m_elensule
----- Original message -----
From: Peter Lind <peter.e.l...@gmail.com>
To: a...@ashleysheridan.co.uk <a...@ashleysheridan.co.uk>
Date: Tuesday, May 18, 2010, 3:00:56 PM
Subject: [PHP] preg_replace: avoiding double replacements
On 18 May 2010 13:43, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
>
> On Tue, 2010-05-18 at 13:46 +0200, Peter Lind wrote:
>
> On 18 May 2010 13:32, Ashley Sheridan <a...@ashleysheridan.co.uk> wrote:
> >
> > On Tue, 2010-05-18 at 13:09 +0200, Peter Lind wrote:
> >
> > On 18 May 2010 12:35, Andre Polykanine <an...@oire.org> wrote:
> > > Hello Peter,
> > >
> > > Hm... I see I need to specify what I'm really doing. Actually, I need
> > > to change the letters in the text. It's a famous and ancient crypting
> > > method: you divide the alphabet making two parts, then you change the
> > > letters of one part with letters for other part (so A becomes N, B
> > > becomes O, etc., and vice versa). it works fine and slightly with
> > > strtr or str_replace... but only if the text is not in utf-8 and it
> > > doesn't contain any non-English letters such as Cyrillic what I need.
> > > What my regex does is the following: it sees an A, well it changes it
> > > to N; then it goes through the string and sees an N... what does it
> > > do? Surely, it changes it back to A! I hoped (in vain) that there
> > > exists a modifier preventing this behavior... but it seems that it's
> > > false(
> > > Thanks!
> >
> > Hmmm, what comes to mind is using your string as an array and
> > translating one character after another, building your output string
> > using a lookup table. Not entirely sure how that will play with utf8
> > characters, you'd have to try and see.
> > I don't think you'll get any of PHPs string functions to do the work
> > for you - they'll do the job in serial, not parallel.
> >
> > Regards
> > Peter
> >
> > --
> > <hype>
> > WWW: http://plphp.dk / http://plind.dk
> > LinkedIn: http://www.linkedin.com/in/plind
> > Flickr: http://www.flickr.com/photos/fake51
> > BeWelcome: Fake51
> > Couchsurfing: Fake51
> > </hype>
> >
> >
> > If you're wanting to use the Caesar cypher (for that's what it is) then why
> > not just modify the entire string, character by character, to use a
> > character code n characters ahead. For example, a capital A is ascii 65,
> > you want to change it to an N to add 14 to that. Just keep n the same
> > throughout and it's easy to convert back.
> >
> > Thanks,
> > Ash
> > http://www.ashleysheridan.co.uk
> >
> >
>
> You probably overlooked the part where the OP points out he's not
> using ascii but utf8. If it was just ascii, using str_rot13() would be
> the weapon of choice I'd say (note that adding 14 to every character
> of an ascii string will turn lots of it into gibberish - you have to
> wrap round when you reach a certain point).
>
> Regards
> Peter
>
> --
> <hype>
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> Flickr: http://www.flickr.com/photos/fake51
> BeWelcome: Fake51
> Couchsurfing: Fake51
> </hype>
>
>
> I gave the example as Ascii because I knew the code for A off the top of my
> head, I don't see a reason why it won't work for utf, the characters still
> have incremental codes.
>
> Also, is gibberish really an issue to worry about? The Caesar cypher is
> already rendering the string unreadable.
You normally want output in the same range that you encode from (i.e.
you're remapping within the alphabet, not within the entire range of
printable characters) if you're doing a caesar/rot13.
Regards
Peter
--
<hype>
WWW: http://plphp.dk / http://plind.dk
LinkedIn: http://www.linkedin.com/in/plind
Flickr: http://www.flickr.com/photos/fake51
BeWelcome: Fake51
Couchsurfing: Fake51
</hype>
--- End Message ---
--- Begin Message ---
I extremely sorry, if my topic isn't related with this group. I apologizes
for this.
I'm trying to add page number on the pdf. I have try the below code.
but couldn't get the page number at the pdf.
where I'm doing wrong. please suggest me.
<?php
require_once("dompdf_config.inc.php");
$dompdf = new DOMPDF();
$html = '<html><body>';
$html .='<script type="text/php">
$font = Font_Metrics::get_font("verdana", "bold");
$dompdf->page_text(200, 16, "{PAGE_NUM} of
{PAGE_COUNT}", $font,
10, array(0,0,0)); </script>';
$html .= '</body></html>';
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>
regards,
saeed
--- End Message ---
--- Begin Message ---
On Tue, 2010-05-18 at 11:21 +0200, Michelle Konzack wrote:
> Hello PHP-Community,
>
> I am PHP programmer since many years and over the years, I have reinvent
> the wheel in authenification and session management at least 30 times.
>
> Yeah, whenever a new project started, I had to reinvent the wheel.
>
> So my question now is, is there a proven and secure framework which can
> be used?
>
> My main problem is, that we (anything ISP related) authenticate using
> PAM+PostgreSQL while the normal Web-User stuff is authenticated directly
> with a Virtual-DB based on PostgreSQL.
>
> Another thing I like to implement in my scripts, that users can at there
> implicit choice be permanently connected without using a password. Also
> the script shoud detect, whether a user is connected trough a dynamic IP
> or a fixed one and sugegst a security level.
>
> I am already detecting the IP from the login and many customers (mostly
> from <http://www.free.fr/>) have static IP's.
>
> Thanks, Greetings and nice Day/Evening
> Michelle Konzack
>
I recently heard about a PHP-based authentication system called Sumo. It
might be what you need to stop re-inventing them darn wheels!
http://sumoam.sourceforge.net
Thanks,
Ash
http://www.ashleysheridan.co.uk
--- End Message ---
--- Begin Message ---
Michelle Konzack wrote:
Hello PHP-Community,
I am PHP programmer since many years and over the years, I have reinvent
the wheel in authenification and session management at least 30 times.
Yeah, whenever a new project started, I had to reinvent the wheel.
So my question now is, is there a proven and secure framework which can
be used?
My main problem is, that we (anything ISP related) authenticate using
PAM+PostgreSQL while the normal Web-User stuff is authenticated directly
with a Virtual-DB based on PostgreSQL.
Another thing I like to implement in my scripts, that users can at there
implicit choice be permanently connected without using a password. Also
the script shoud detect, whether a user is connected trough a dynamic IP
or a fixed one and sugegst a security level.
I am already detecting the IP from the login and many customers (mostly
from <http://www.free.fr/>) have static IP's.
Why don't you take one of those wheels you created and make it work with
a simple configuration and voila, you have a class or library that can
be used in all your projects. It should be as simple as it sounds.
Cheers,
Rob.
--
http://www.interjinn.com
Application and Templating Framework for PHP
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Hi.
I'm trying to build a html analyzer that looks at natural words in html text.
I'd like to build a routine that walks through the HTML character by
character, but i'm not sure on how to properly walk through escaped "
and ' characters in javascript or other embedded languages. Skipping
the first " and ' is no problem, but after that, the escaped " and ',
they can get difficult imo.
If you have any ideas on this i'd like to hear 'm..
--
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Greetings from Rene7705,
My free open source webcomponents:
http://code.google.com/u/rene7705/
http://mediabeez.ws/downloads (and demos)
http://www.facebook.com/rene7705
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