[PHP] Simple RegEx to pull out content between 2 markers

2008-03-29 Thread Jon Bennett
Hi,

I need to grab the what's between 2 markers in a Textile / html
string, but my regex skills aren't all that hot. The text I have is:

OPEN_MAIN_COLUMN

h3. Article Content

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. Duis aute irure dolor in
reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.

p(image). !/app/image/1/large! Caption

p(image). !/app/image/24/large! drunken jonty

CLOSE_MAIN_COLUMN

OPEN_LEFT_COLUMN

h3. Article Content

!/app/image/7/thumb! Lorem ipsum dolor sit amet, consectetur
adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore
magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation
ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute
irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,
sunt in culpa qui officia deserunt mollit anim id est laborum.

CLOSE_LEFT_COLUMN

OPEN_RIGHT_COLUMN

h3. Article Content

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua.

* Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris
nisi ut aliquip ex ea commodo consequat.
* Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
* Excepteur sint occaecat cupidatat non proident, sunt in culpa qui
officia deserunt mollit anim id est laborum.

CLOSE_RIGHT_COLUMN

I'd like to grab the contents of left, right and main individually so
I can place them in separate form fields.

Any help greatly appreciated. I'm certain this is a cinch for people
who use regex often.

Thanks,

Jon


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Re: [PHP] Simple RegEx to pull out content between 2 markers

2008-03-29 Thread Zoltán Németh
2008. 03. 29, szombat keltezéssel 11.26-kor Jon Bennett ezt írta:
 Hi,
 
 I need to grab the what's between 2 markers in a Textile / html
 string, but my regex skills aren't all that hot. The text I have is:
 
 OPEN_MAIN_COLUMN
 
 h3. Article Content
 
 Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
 eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
 minim veniam, quis nostrud exercitation ullamco laboris nisi ut
 aliquip ex ea commodo consequat. Duis aute irure dolor in
 reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
 pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
 culpa qui officia deserunt mollit anim id est laborum.
 
 p(image). !/app/image/1/large! Caption
 
 p(image). !/app/image/24/large! drunken jonty
 
 CLOSE_MAIN_COLUMN
 
 OPEN_LEFT_COLUMN
 
 h3. Article Content
 
 !/app/image/7/thumb! Lorem ipsum dolor sit amet, consectetur
 adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore
 magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation
 ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute
 irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
 fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,
 sunt in culpa qui officia deserunt mollit anim id est laborum.
 
 CLOSE_LEFT_COLUMN
 
 OPEN_RIGHT_COLUMN
 
 h3. Article Content
 
 Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
 eiusmod tempor incididunt ut labore et dolore magna aliqua.
 
 * Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris
 nisi ut aliquip ex ea commodo consequat.
 * Duis aute irure dolor in reprehenderit in voluptate velit esse
 cillum dolore eu fugiat nulla pariatur.
 * Excepteur sint occaecat cupidatat non proident, sunt in culpa qui
 officia deserunt mollit anim id est laborum.
 
 CLOSE_RIGHT_COLUMN
 
 I'd like to grab the contents of left, right and main individually so
 I can place them in separate form fields.
 
 Any help greatly appreciated. I'm certain this is a cinch for people
 who use regex often.

preg_match('/OPEN_MAIN_COLUMN(.*)CLOSE_MAIN_COLUMN/sUi', $string,
$matches);
echo $matches[1];

it's not very complicated, the only interesting bits are the s and U
modifiers at the end of the pattern. s makes the dot (.) to match
newlines too, so the matched text can be more than one line, the U makes
the engine 'ungreedy' which means that it stops after the first match.
this means that if you have a string like opencloseopenclose and
match for open(.*)close, without the U modifier you would get the
part between the first open and the last close. with the modifier
you get the parts between any open and the next close

more info here:
http://hu.php.net/manual/en/reference.pcre.pattern.modifiers.php
http://hu.php.net/manual/en/reference.pcre.pattern.syntax.php

greets,
Zoltán Németh

 
 Thanks,
 
 Jon
 
 
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 iChat (AIM): jbendotnet Skype: jon-bennett
 


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Re: [PHP] Simple RegEx to pull out content between 2 markers

2008-03-29 Thread Richard Heyes

Jon Bennett wrote:

Hi,

I need to grab the what's between 2 markers in a Textile / html
string, but my regex skills aren't all that hot. The text I have is:

OPEN_MAIN_COLUMN

h3. Article Content

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. Duis aute irure dolor in
reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.

p(image). !/app/image/1/large! Caption

p(image). !/app/image/24/large! drunken jonty

CLOSE_MAIN_COLUMN

OPEN_LEFT_COLUMN

h3. Article Content

!/app/image/7/thumb! Lorem ipsum dolor sit amet, consectetur
adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore
magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation
ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute
irure dolor in reprehenderit in voluptate velit esse cillum dolore eu
fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident,
sunt in culpa qui officia deserunt mollit anim id est laborum.

CLOSE_LEFT_COLUMN

CLOSE_RIGHT_COLUMN

h3. Article Content

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua.

* Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris
nisi ut aliquip ex ea commodo consequat.
* Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur.
* Excepteur sint occaecat cupidatat non proident, sunt in culpa qui
officia deserunt mollit anim id est laborum.

CLOSE_RIGHT_COLUMN

I'd like to grab the contents of left, right and main individually so
I can place them in separate form fields.

Any help greatly appreciated. I'm certain this is a cinch for people
who use regex often.


It's really not that hard if you use three separate expressions:

$left = preg_match('/OPEN_LEFT_COLUMN(.*)CLOSE_LEFT_COLUMN/is', 
$text, $matches);


$right = preg_match('/OPEN_RIGHT_COLUMN(.*)CLOSE_RIGHT_COLUMN/is', 
$text, $matches);


$main = preg_match('/OPEN_MAIN_COLUMN(.*)CLOSE_MAIN_COLUMN/is', 
$text, $matches);


And then, IIRC, the content you're after will be in $matches[1].

--
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Employ me:
http://www.phpguru.org/cv

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Re: [PHP] Simple RegEx question

2007-12-31 Thread Richard Lynch
Find Weitz's The Regex Coach (Linux and Windows) and install it and
play around.

You'll learn more in one day from the pretty color syntax highlighting
than reading the perl books/pages for months.

On Mon, December 24, 2007 9:34 pm, M5 wrote:
 I'm learning regular expressions, and trying to figure out what's
 possible and what's not. Any ideas of how to create a preg_match
 expression to parse following three lines:

 Calgary, AB  T2A6C1
 Toronto, ON T4M 0B0
 Saint John,  NBE2L 4L1

 ...such that it splits each line into City, Province and Postalcode
 (irrespective of occasional white space), e.g.:

 Array
 (
   [city]  = Calgary,
   [prov]  = AB,
   [postal]= T2A 6C1
 )

 Array
 (
   [city]  = Toronto,
   [prov]  = ON,
   [postal]= T4M 0B0
 )

 Array
 (
   [city]  = Saint John,
   [prov]  = NB,
   [postal]= E2L 4L1
 )

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Re: [PHP] Simple RegEx question

2007-12-25 Thread Jochem Maas
M5 schreef:
 I'm learning regular expressions, and trying to figure out what's
 possible and what's not. 

pretty much anything as far as string parsing goes.

 Any ideas of how to create a preg_match
 expression to parse following three lines:

yes. given your intention to learn regexps why not try to come
up with one? if you get stuck show us what you have so far ...
you don't learn to eat with cutlery by being spoonfed.

if you want to parse the whole string in one go you'll want to use
preg_match_all() otherwise use preg_match and iterate over each line ..

foreach(explode(\n, $data) as $line) {
$matches = array();
if (preg_match($line, $regexp, $matches)) {
/* do something */
}
}

 
 Calgary, AB  T2A6C1
 Toronto, ON T4M 0B0
 Saint John,  NBE2L 4L1
 
 ...such that it splits each line into City, Province and Postalcode
 (irrespective of occasional white space), e.g.:
 
 Array
 (
 [city]= Calgary,
 [prov]= AB,
 [postal]= T2A 6C1
 )
 
 Array
 (
 [city]= Toronto,
 [prov]= ON,
 [postal]= T4M 0B0
 )
 
 Array
 (
 [city]= Saint John,
 [prov]= NB,
 [postal]= E2L 4L1
 )
 

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[PHP] Simple RegEx question

2007-12-24 Thread M5
I'm learning regular expressions, and trying to figure out what's  
possible and what's not. Any ideas of how to create a preg_match  
expression to parse following three lines:


Calgary, AB  T2A6C1
Toronto, ON T4M 0B0
Saint John,  NBE2L 4L1

...such that it splits each line into City, Province and Postalcode  
(irrespective of occasional white space), e.g.:


Array
(
[city]  = Calgary,
[prov]  = AB,
[postal]= T2A 6C1
)

Array
(
[city]  = Toronto,
[prov]  = ON,
[postal]= T4M 0B0
)

Array
(
[city]  = Saint John,
[prov]  = NB,
[postal]= E2L 4L1
)

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Re: [PHP] Simple RegEx question

2007-12-24 Thread Casey

On Dec 24, 2007, at 7:34 PM, M5 [EMAIL PROTECTED] wrote:

I'm learning regular expressions, and trying to figure out what's  
possible and what's not. Any ideas of how to create a preg_match  
expression to parse following three lines:


Calgary, AB  T2A6C1
Toronto, ON T4M 0B0
Saint John,  NBE2L 4L1

...such that it splits each line into City, Province and Postalcode  
(irrespective of occasional white space), e.g.:


Array
(
   [city]= Calgary,
   [prov]= AB,
   [postal]= T2A 6C1
)

Array
(
   [city]= Toronto,
   [prov]= ON,
   [postal]= T4M 0B0
)

Array
(
   [city]= Saint John,
   [prov]= NB,
   [postal]= E2L 4L1
)

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Try this:
$places = array();
$lines = explode(\n, $toparse);
foreach ($lines as $i = $line)
list($places[$i]['city'], $places[$i]['prov'], $places[$i] 
['postal']) = explode(' ', $line, 3);'


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Re: [PHP] Simple RegEx question

2007-12-24 Thread Casey

On Dec 24, 2007, at 7:59 PM, Casey [EMAIL PROTECTED] wrote:


On Dec 24, 2007, at 7:34 PM, M5 [EMAIL PROTECTED] wrote:

I'm learning regular expressions, and trying to figure out what's  
possible and what's not. Any ideas of how to create a preg_match  
expression to parse following three lines:


Calgary, AB  T2A6C1
Toronto, ON T4M 0B0
Saint John,  NBE2L 4L1

...such that it splits each line into City, Province and Postalcode  
(irrespective of occasional white space), e.g.:


Array
(
  [city]= Calgary,
  [prov]= AB,
  [postal]= T2A 6C1
)

Array
(
  [city]= Toronto,
  [prov]= ON,
  [postal]= T4M 0B0
)

Array
(
  [city]= Saint John,
  [prov]= NB,
  [postal]= E2L 4L1
)

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Try this:
$places = array();
$lines = explode(\n, $toparse);
foreach ($lines as $i = $line)
   list($places[$i]['city'], $places[$i]['prov'], $places[$i] 
['postal']) = explode(' ', $line, 3);'

I'm very sorry about that, Ive been wrong all week!

It doesn't parse Saint John correctly :(

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[PHP] simple regex query

2006-04-06 Thread Angelo Zanetti

Hi guys

Been tryin to figure out regex and have found some tutorials but some have made 
things clear and others have confused me.

Anyway for a simple query, if I just wanted to check that a variable has only 
text and numeric characters would I do something like this
(i want it to fail if it finds a symbol eg: + - {  etc...):

echo  REG result:  . preg_match('/[a-zA-Z0-9]*/', '{d-fg');

however this resolves to true because there are normal characters (alphabetical 
characters) so how do I make the expression fail because of the { and - 
characters in the string?

You can also list which characters you DON'T want -- just use a '^' as the 
first symbol in a bracket expression
(i.e., %[^a-zA-Z]% matches a string with a character that is not a letter between two percent signs). But that would mean that I would have to list each symbol I dont want and that would be 
undesireable as it would be better to list exactly what the acceptable characters are.


Can anyone give me some insight as to where I'm going wrong?

thanks

--

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Re: [PHP] simple regex query

2006-04-06 Thread Jochem Maas

Angelo Zanetti wrote:

Hi guys

Been tryin to figure out regex and have found some tutorials but some 
have made things clear and others have confused me.


Anyway for a simple query, if I just wanted to check that a variable has 
only text and numeric characters would I do something like this

(i want it to fail if it finds a symbol eg: + - {  etc...):

echo  REG result:  . preg_match('/[a-zA-Z0-9]*/', '{d-fg');


you're on the right path, whats needed is start and end [string] delimiters
in the regexp (note I used a different regexp delimiter, '#', which is 
irrelevant):

echo REG 1 result: , preg_match(#[a-zA-Z0-9]*#, {d-fg), \n,
 REG 2 result: , preg_match(#^[a-zA-Z0-9]*$#, {d-fg), \n;

the magic characters are '^' andf '$' as explained in more detail here:
http://php.net/manual/en/reference.pcre.pattern.syntax.php

quote
^

assert start of subject (or line, in multiline mode)
$

assert end of subject (or line, in multiline mode)
/quote



however this resolves to true because there are normal characters 
(alphabetical characters) so how do I make the expression fail because 
of the { and - characters in the string?


You can also list which characters you DON'T want -- just use a '^' as 
the first symbol in a bracket expression
(i.e., %[^a-zA-Z]% matches a string with a character that is not a 
letter between two percent signs). But that would mean that I would have 
to list each symbol I dont want and that would be undesireable as it 
would be better to list exactly what the acceptable characters are.


Can anyone give me some insight as to where I'm going wrong?

thanks



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Re: [PHP] simple regex query

2006-04-06 Thread Angelo Zanetti

Jochem Maas wrote:

Angelo Zanetti wrote:


Hi guys

Been tryin to figure out regex and have found some tutorials but some 
have made things clear and others have confused me.


Anyway for a simple query, if I just wanted to check that a variable 
has only text and numeric characters would I do something like this

(i want it to fail if it finds a symbol eg: + - {  etc...):

echo  REG result:  . preg_match('/[a-zA-Z0-9]*/', '{d-fg');



you're on the right path, whats needed is start and end [string] delimiters
in the regexp (note I used a different regexp delimiter, '#', which is 
irrelevant):


echo REG 1 result: , preg_match(#[a-zA-Z0-9]*#, {d-fg), \n,
 REG 2 result: , preg_match(#^[a-zA-Z0-9]*$#, {d-fg), \n;

the magic characters are '^' andf '$' as explained in more detail here:
http://php.net/manual/en/reference.pcre.pattern.syntax.php

quote
^

assert start of subject (or line, in multiline mode)
$

assert end of subject (or line, in multiline mode)
/quote



thanks but I think I kinda got working the other way around:

if (!preg_match('/[^a-zA-Z0-9]/', 'gf-5'))
 echo valid;
else
 echo invalid;

then if I wanted to list any symbols I could just change it to:

preg_match('/[^a-zA-Z0-9\,\.]/', 'gf-5'))

if I wanted . and , to be accepted.

tx

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Re: [PHP] simple regex query

2006-04-06 Thread Robin Vickery
On 06/04/06, Angelo Zanetti [EMAIL PROTECTED] wrote:

 Anyway for a simple query, if I just wanted to check that a variable has only 
 text and numeric characters would I do something like this
 (i want it to fail if it finds a symbol eg: + - {  etc...):

 echo  REG result:  . preg_match('/[a-zA-Z0-9]*/', '{d-fg');

 however this resolves to true because there are normal characters 
 (alphabetical characters) so how do I make the expression fail because of the 
 { and - characters in the string?

 You can also list which characters you DON'T want -- just use a '^' as the 
 first symbol in a bracket expression
 (i.e., %[^a-zA-Z]% matches a string with a character that is not a letter 
 between two percent signs). But that would mean that I would have to list 
 each symbol I dont want and that would be
 undesireable as it would be better to list exactly what the acceptable 
 characters are.

You're pretty much there. Your first example resolved to true because
you didn't anchor the start and end of the expression.

/^[a-z0-9]*$/i

It would be a bit more efficient to use the negated character class
you mentioned.

  /[^a-z0-9]/i

All you need to bear in mind is that preg_match() would then return
true if the string contains an illegal character and false if it is OK
rather than the other way around.

So these should both produce the same result:

preg_match('/^[a-z0-9]*$/i', '{d-fg');
!preg_match('/[^a-z0-9]/i', '{d-fg');

  -robin

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Re: [PHP] simple regex query

2006-04-06 Thread Joe Henry
On Thursday 06 April 2006 6:19 am, Angelo Zanetti wrote:
 Hi guys

 Been tryin to figure out regex and have found some tutorials but some have
 made things clear and others have confused me.

 Anyway for a simple query, if I just wanted to check that a variable has
 only text and numeric characters would I do something like this (i want it
 to fail if it finds a symbol eg: + - {  etc...):

 echo  REG result:  . preg_match('/[a-zA-Z0-9]*/', '{d-fg');

 however this resolves to true because there are normal characters
 (alphabetical characters) so how do I make the expression fail because of
 the { and - characters in the string?

 You can also list which characters you DON'T want -- just use a '^' as the
 first symbol in a bracket expression (i.e., %[^a-zA-Z]% matches a string
 with a character that is not a letter between two percent signs). But that
 would mean that I would have to list each symbol I dont want and that would
 be undesireable as it would be better to list exactly what the acceptable
 characters are.

 Can anyone give me some insight as to where I'm going wrong?

 thanks

 --

 Angelo

I found an AJAX regex tester the other day. It'll check PCRE, Posix, and 
Javascript. Don't know how useful this is, but thought I'd throw it into this 
thread.

http://rexv.org/

-- 
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www.celebrityaccess.com
[EMAIL PROTECTED]

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Re: [PHP] simple regex query

2006-04-06 Thread Paul Scott
On Thu, 2006-04-06 at 15:36 +0200, Jochem Maas wrote:
  
  Been tryin to figure out regex and have found some tutorials but some 
  have made things clear and others have confused me.
  

We are busy building up a library of commonly used regex's on a wiki,
check it out at http://fsiu.uwc.ac.za/ If its not there, please add a
method once you figure it out!

--Paul

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RE: [PHP] Simple REGEX?

2001-02-18 Thread ..s.c.o.t.t..

well, if the only characters that you want to allow are 
alphanum/space/underscore, you could use a
perl regexp to match against anything *other* than
those things...(a positive match would indicate that the
string being matched had invalid characters in it)
use this:

preg_match('/[^\w\s]/', $input);

(to see an explanation of why this works, please read
the bottom of my email... i give a short breakdown of it)

if you want to allow any more characters, simply place the
character you want to allow within the brackets, and any
instance of that character in the string to be matched
will be ignored (rather than matched) 
for example, to allow periods and question marks in
your input (without getting a positive match on the regexp),
modify it to look like this: '/[^\w\s\.\?]/'


what will match and what will not match using this regexp:
print preg_match('/[^\w\s]/', $t);

$t = "ea!ti_t99";
will print "1" since the "!" will match the regexp

$t = "Hello one_two"
will print "0" since nothing matches

$t = "How *are* you"
will print "1" since the "*" matches


the regexp works like this:
[ ] = character class
^ = not
\w = alphanumeric
\s = space

the character class brackets are just to let the regexp
know that the things inside of it are to be matched one
by one against the string.  "[suv]" would not match the entire
string "suv", but rather "s" or "u" or "v", so "[\w\s]" would 
match any string that had an alphanumeric character or
whitespace in it.  since you want to find strings that 
have NOT-alphanum or NOT-space, you simply negate the
character class that will match alphanum and space, by
adding a "^" to it... making it "[^\w\s]" (match anything
that is NOT an alphanumeric or space character - meaning
match any string that has invalid characters).

if you want to allow other characters into your input, just
add them into the character class.  if you find that you need
to allow "?" into your input, use this "[^\w\s\?]"... and it will
match any string that does NOT have alphanum/space/?,
meaning that it will match any string with invalid chars.






 -Original Message-
 From: James, Yz [mailto:[EMAIL PROTECTED]]
 Sent: Saturday, February 17, 2001 12:15
 To: [EMAIL PROTECTED]
 Subject: [PHP] Simple REGEX?
 
 
 Hi guys,
 
 I'd like to restrict the characters a client is inputting to a database.
 
 I already have a system that'll exclude certain characters.  Alpha Numerics
 are permitted, together with the underscore and spaces.  Is there a
 collective expression for the following characters? :
 
 !",.?@()
 
 Because I'd like to allow those too.  And I'm useless with RegEx.
 
 Thanks as always,
 James.
 
 
 
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[PHP] Simple REGEX?

2001-02-17 Thread James, Yz

Hi guys,

I'd like to restrict the characters a client is inputting to a database.

I already have a system that'll exclude certain characters.  Alpha Numerics
are permitted, together with the underscore and spaces.  Is there a
collective expression for the following characters? :

!",.?@()

Because I'd like to allow those too.  And I'm useless with RegEx.

Thanks as always,
James.



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