[PHP] Re: regular expression help!
First stripslashes() and all newlines [\n\r*]. It makes the regex much easier. $pattern= "%%i; preg_match($pattern, $string, $match); If more than one in the string, use preg_match_all(). Now print_r($match); so you can see the result. Now, read the doc and see why each term is used. Note, I assumed your string can have some variation and still be W3C compatible e.g., src="." and src= "", etc. You may need to be able to handle additional variations. Al William Stokes wrote: Hello, Can someone here give me a glue how to do the following. I guess I need to use regular expressions here. I have absolutely zero experience with regular expressions. (if there's another way to do this I don't mind. I jus need to get this done somehow :) I need to strip all characters from the following text string exept the image path... "src=\"../../images/new/thumps/4123141112007590373240.jpg\" />"...and then store the path to DB. Image path lengh can vary so I guess that I need to extract all characters after scr=\"until next\"or somethig similar. Thanks for your advise! -Will -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: regular expression help
You were right, I removed the reference to global $mac and it started
working great. Thanks. It seems sometimes another set of eyes to catch
stuff really helps... thanks.
Jason wrote:
Jason wrote:
Simple functions to check & fix if necessary invalid formating of a
MAC address... I seem to be having problems with the global variable
$mac not being returned from the fix_mac() function. Any help is
appreciated.
global $mac;
if( eregi(
"^[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}$",
$mac ) ) {
return 0;
} else {
return 1;
}
}
/*
* check validity of MAC & do replacements if necessary
*/
function fix_mac( $mac ) {
global $mac;
/* strip the dash & replace with a colon */
if( eregi(
"^[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}$",
$mac ) ) {
$mac = preg_replace( "/\-/", ":", $mac );
return $mac;
}
/* add a colon for every two characters */
if( eregi( "^[0-9A-Fa-f]{12}$", $mac ) ) {
/* split up the MAC and assign new var names */
@list( $mac1, $mac2, $mac3, $mac4, $mac5, $mac6 ) = @str_split(
$mac, 2 );
/* put it back together with the required colons */
$mac = $mac1 . ":" . $mac2 . ":" . $mac3 . ":" . $mac4 . ":" . $mac5
. ":" . $mac6;
return $mac;
}
}
// do our checks to make sure we are using these damn things right
$mac1 = "00aa11bb22cc";
$mac2 = "00-aa-11-bb-22-cc";
$mac3 = "00:aa:11:bb:22:cc";
// make sure it is global
global $mac;
// if mac submitted is invalid check & fix if necessary
if( chk_mac( $mac1 ) != 0 ) {
$mac = fix_mac( $mac1 ); echo $mac1 . " converted to " . $mac . "";
}
if( chk_mac( $mac2 ) != 0 ) {
$mac = fix_mac( $mac2 ); echo $mac2 . " converted to " . $mac . "";
}
if( chk_mac( $mac3 ) != 0 ) {
$mac = fix_mac( $mac3 ); echo $mac3 . " converted to " . $mac . "";
}
?>
Still does not resolve the problem. declaring $mac as global in the
chk_mac() function.
--
Jason Gerfen
"And remember... If the ladies
don't find you handsome, they
should at least find you handy..."
~The Red Green show
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Re: [PHP] Re: regular expression help
Hi,
>From what i can see you dont even need to call global, as your passing
variables to the function ? this could be causing the script to
confuse itself.
hth
On Fri, 21 Jan 2005 09:30:21 -0700, Jason <[EMAIL PROTECTED]> wrote:
> Jason wrote:
> > Simple functions to check & fix if necessary invalid formating of a MAC
> > address... I seem to be having problems with the global variable $mac
> > not being returned from the fix_mac() function. Any help is appreciated.
> >
> > > /*
> > * ex. 00:AA:11:BB:22:CC
> > */
> > function chk_mac( $mac ) {
> global $mac;
> > if( eregi(
> > "^[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}$",
> > $mac ) ) {
> > return 0;
> > } else {
> > return 1;
> > }
> > }
> >
> > /*
> > * check validity of MAC & do replacements if necessary
> > */
> > function fix_mac( $mac ) {
> > global $mac;
> > /* strip the dash & replace with a colon */
> > if( eregi(
> > "^[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}$",
> > $mac ) ) {
> > $mac = preg_replace( "/\-/", ":", $mac );
> > return $mac;
> > }
> > /* add a colon for every two characters */
> > if( eregi( "^[0-9A-Fa-f]{12}$", $mac ) ) {
> > /* split up the MAC and assign new var names */
> > @list( $mac1, $mac2, $mac3, $mac4, $mac5, $mac6 ) = @str_split( $mac,
> > 2 );
> > /* put it back together with the required colons */
> > $mac = $mac1 . ":" . $mac2 . ":" . $mac3 . ":" . $mac4 . ":" . $mac5 .
> > ":" . $mac6;
> > return $mac;
> > }
> > }
> >
> > // do our checks to make sure we are using these damn things right
> > $mac1 = "00aa11bb22cc";
> > $mac2 = "00-aa-11-bb-22-cc";
> > $mac3 = "00:aa:11:bb:22:cc";
> >
> > // make sure it is global
> > global $mac;
> >
> > // if mac submitted is invalid check & fix if necessary
> > if( chk_mac( $mac1 ) != 0 ) {
> > $mac = fix_mac( $mac1 ); echo $mac1 . " converted to " . $mac . "";
> > }
> > if( chk_mac( $mac2 ) != 0 ) {
> > $mac = fix_mac( $mac2 ); echo $mac2 . " converted to " . $mac . "";
> > }
> > if( chk_mac( $mac3 ) != 0 ) {
> > $mac = fix_mac( $mac3 ); echo $mac3 . " converted to " . $mac . "";
> > }
> >
> > ?>
> Still does not resolve the problem. declaring $mac as global in the
> chk_mac() function.
>
> --
> Jason Gerfen
> Student Computing
> Marriott Library
> 801.585.9810
> [EMAIL PROTECTED]
>
> "And remember... If the ladies
> don't find you handsome, they
> should at least find you handy..."
> ~The Red Green show
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
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[PHP] Re: regular expression help
Jason wrote:
Simple functions to check & fix if necessary invalid formating of a MAC
address... I seem to be having problems with the global variable $mac
not being returned from the fix_mac() function. Any help is appreciated.
global $mac;
if( eregi(
"^[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}\:[0-9A-Fa-f]{2}$",
$mac ) ) {
return 0;
} else {
return 1;
}
}
/*
* check validity of MAC & do replacements if necessary
*/
function fix_mac( $mac ) {
global $mac;
/* strip the dash & replace with a colon */
if( eregi(
"^[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}\-[0-9A-Fa-f]{2}$",
$mac ) ) {
$mac = preg_replace( "/\-/", ":", $mac );
return $mac;
}
/* add a colon for every two characters */
if( eregi( "^[0-9A-Fa-f]{12}$", $mac ) ) {
/* split up the MAC and assign new var names */
@list( $mac1, $mac2, $mac3, $mac4, $mac5, $mac6 ) = @str_split( $mac,
2 );
/* put it back together with the required colons */
$mac = $mac1 . ":" . $mac2 . ":" . $mac3 . ":" . $mac4 . ":" . $mac5 .
":" . $mac6;
return $mac;
}
}
// do our checks to make sure we are using these damn things right
$mac1 = "00aa11bb22cc";
$mac2 = "00-aa-11-bb-22-cc";
$mac3 = "00:aa:11:bb:22:cc";
// make sure it is global
global $mac;
// if mac submitted is invalid check & fix if necessary
if( chk_mac( $mac1 ) != 0 ) {
$mac = fix_mac( $mac1 ); echo $mac1 . " converted to " . $mac . "";
}
if( chk_mac( $mac2 ) != 0 ) {
$mac = fix_mac( $mac2 ); echo $mac2 . " converted to " . $mac . "";
}
if( chk_mac( $mac3 ) != 0 ) {
$mac = fix_mac( $mac3 ); echo $mac3 . " converted to " . $mac . "";
}
?>
Still does not resolve the problem. declaring $mac as global in the
chk_mac() function.
--
Jason Gerfen
Student Computing
Marriott Library
801.585.9810
[EMAIL PROTECTED]
"And remember... If the ladies
don't find you handsome, they
should at least find you handy..."
~The Red Green show
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[PHP] Re: Regular expression help?
* Jas <[EMAIL PROTECTED]>:
> Not sure if anyone knows of a good way to match strings of this type...
> 00:02:8b:0c:2f:09
>
> I have tried this but its not working.
>
> !eregi("^[0-9a-fA-F]{2}\:[0-9a-fA-F]{2}\:[0-9a-fA-F]{2}\:[0-9a-fA-F]{2}\:[0-9a-fA-F]{2}\:[0-9a-fA-F]{2}$",$_POST['mac'])
Use the perl compatible regexps instead:
!preg_match('/^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$/', $_POST['mac'])
This searches for XX: 5 followed by XX, where XX is 0-9, A-F, or a-f. I
_think_ the POSIX regexps can do some grouping like this as well, but
I'm not absolutely sure.
--
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Webmaster and IT Specialist
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[PHP] Re: Regular Expression Help in my PHP! Sorry if wrong group
I figured out what I was doing wrong. My regexp should of looked like
this /]*>(Tampa)<\/a>/ and that made it more specific and kept it
to that match.
Jason Lehman wrote:
I have a script that turns certain words into links. That I am having
no problems with, it is when I want to turn the links back in to plain
text that I am having the problem. Below are my examples. And I know
my regex is being greedy but I don't know how to stop it from being so
damn greedy I thought the ? mark would help but it didn't. Any help
would be appreciated. So here it goes:
The code:
$strStr = "This is USF at Tampa. This
is USF at Tampa.";
echo $strStr."\n";
$strStr = preg_replace("/(Tampa)<\/a>/","\\1",$strStr);
echo $strStr."\n";
$strStr = preg_replace("/(USF)<\/a>/","\\1",$strStr);
echo $strStr."\n";
The output:
This is USF at Tampa. This is USF at Tampa.
This is Tampa. This is Tampa.
This is Tampa. This is Tampa.
The expected output:
This is USF at Tampa. This is USF at Tampa.
This is USF at Tampa. This is USF at
Tampa.
This is USF at Tampa. This is USF at Tampa.
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[PHP] Re: regular expression help
This should do (but ofcourse you might want to play a bit with it)
$mem =
'
http://www.mydomain.com/mypage.php";>something is fine
http://www.yourdomain.com/yourpage.php";>something is wrong
http://www.yourdomain.com/yourpage.php";>something is fine
http://www.lgwm.org/";>lgwm
http://www.google.com";
onclick="javascript:alert(\'hello\');">Google!
';
function handler($theTag, $theDomain)
{
if (!strstr($theDomain, "mydomain.com"))
{
$theTag = strstr($theTag, " ");
$theTag = "]*>/eis";
$t = preg_replace($re, "handler('\\0', '\\2')" ,$mem);
echo $t;
//greetings R&Ze!
"Justin French" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> hi all,
>
> I have some user-supplied text on a content driven site.
> I am allowing tags inside the main text, BUT I want
> any links to external sites (not on the chosen domain)
> to include a ' TARGET="_new" ' element.
>
> So,
>
> http://www.mydomain.com/mypage.php";>something is fine
> http://www.yourdomain.com/yourpage.php";>something is wrong
> http://www.yourdomain.com/yourpage.php";
> TARGET="_new">something is fine
>
> And of course there are all the variants with and without
> the www, and with and without sub directories and pages.
>
> I'[d also like to make sure the dopey people have put a
> close tag in.
>
>
> I've got a few ideas on how it might be done, but I need
> to do it the right way, avoiding slight human errors etc.
>
>
> Has anyone got something written, or can point me in the
> right direction?
>
>
> Justin French
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Re: [PHP] Re: Regular Expression help
On Fri, 29 Jun 2001 23:43, Clayton Dukes wrote:
> Okay, here's what I have so far:
>
> ---snip---
> if ((!$email)
>
>|| ($email=="")
>|| (!eregi("^[_\.0-9a-z-]+@domain.+[a-z]",$email))
>
>)
> $stop = ""._ERRORINVEMAIL."";
> ---snip---
>
> This works, but how can I add a second domain?
How 'bout;
---snip---
if ((!$email)
|| ($email=="")
|| (!eregi("^[_\.0-9a-z-]+@domain|otherdomain.+[a-z]",$email)
)
$stop = ""._ERRORINVEMAIL."";
---snip---
Cheers,
Brad
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Thomastown, Victoria, Australia 3074
Email: [EMAIL PROTECTED]
Ph: +61-3-94645981
Fax: +61-3-94645982
Mob: +61-419107559
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Re: [PHP] Re: Regular Expression help
Clayton Dukes wrote:
> Okay, here's what I have so far:
>
> ---snip---
> if ((!$email)
>|| ($email=="")
>|| (!eregi("^[_\.0-9a-z-]+@domain.+[a-z]",$email))
>)
> $stop = ""._ERRORINVEMAIL."";
> ---snip---
>
> This works, but how can I add a second domain?
> ie:
>
Try:
^[_\.0-9a-z-]+@(domainA|domainB|etc)\.[a-z]{2,3}$
A complete email address check is insanely hard to to if you want to get
RFC 822 compliant-checking, but who needs that anyways? (fwiw, the regex in
Mastering Regular Expressions for checking email address syntax is some
4,700 bytes long.)
J
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[PHP] Re: Regular Expression help
Okay, here's what I have so far:
---snip---
if ((!$email)
|| ($email=="")
|| (!eregi("^[_\.0-9a-z-]+@domain.+[a-z]",$email))
)
$stop = ""._ERRORINVEMAIL."";
---snip---
This works, but how can I add a second domain?
ie:
---snip---
if ((!$email)
|| ($email=="")
|| (!eregi("^[_\.0-9a-z-]+@domain.+[a-z]",$email))
|| (!eregi("^[_\.0-9a-z-]+@otherdomain.+[a-z]",$email))
)
$stop = ""._ERRORINVEMAIL."";
---snip---
This doesn't work. (it returns the error no matter what I enter)
Thanks guys (and gals?)
Clayton Dukes
CCNA, CCDA, CCDP, CCNP
Download Free Essays, Term Papers and Cisco Training from http://www.gdd.net
- Original Message -
From: "Clayton Dukes" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 29, 2001 9:08 AM
Subject: Regular Expression help
> Hi everyone,
>
> I have a new user function that checks e-mail addresses.
> I wish to only allow people from two different domains to register.
> How can I filter out all other e-mail addresses and return an error if
it's
> not from those domains.
>
> Here's what I have:
>
> if ((!$email) || ($email=="") ||
> (!eregi("^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3}$",$email)))
$stop
> = ""._ERRORINVEMAIL."";
>
> What this currently does is just makes sure it's a valid e-mail address.
> What I'd like it to do is if the user enters anything except @domain1.com
or
> @domain2.com it spits out the error (ERRORINVEMAIL)
>
> So (I think) It would look something like this:
>
> if ((!$email) || ($email=="") || (!eregi("^[_\.0-9a-z-]+@([DdOoMmAaIiNn1]
||
> (or statement???) [DdOoMmAaIiNn2-]+\.)+[a-z]{2,3}$",$email))) $stop =
> ""._ERRORINVEMAIL."";
>
>
> Of course, this doesn't work, but you get the point.
>
>
> Thanks!
> P.S.
> Thanks for the Awesome List!
>
> Clayton Dukes
> CCNA, CCDA, CCDP, CCNP
> Download Free Essays, Term Papers and Cisco Training from
http://www.gdd.net
>
>
>
>
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