I believe that only two things could be messing up your validation:
a) input data
b) your function
a) Do a var_dump on your input data. Is there any white space
characters or anything else that do not belong there in the string?
b) Rewrite your function/rethink what you are doing. You said that
your function should match letters from a to Z and some special
characters like ' - _ .
Try this regex:
^(\w+\s?[\'\-\_\.]?)+$
I would write the function as follows:
function invalidchar ( $input )
{
if ( preg_match ( "^(\w+\s?[\'\-\_\.]?)+$", $input ) ) { // string
matches against the pattern, everything is ok
return $input;
} else {
return false;
}
}
if ( invalidchar ( $my_string ) == false ) {
// do some stuff
} else {
echo "You passed the test";
}
// untested
// frank
16 jan 2007 kl. 04.47 skrev Beauford:
My apologies, but I am just so frustrated right now. It seems my
function
doesn't work either (if that's even the problem, which at this time
I just
don't know). Somehow my variable is still getting a value, and I
have no
idea how. Even if I don't return anything it still gets a value.
Basically
this has just broken my whole site.
If anyone can figure this out let me know, right now I just have to
put this
site up with no validation.
Thanks
-----Original Message-----
From: Beauford
Sent: January 15, 2007 10:26 PM
To: 'PHP'
Subject: RE: I lied, another question / problem
Does anyone have any idea to this problem? All the code is in
the emails I have written to the list. I have temporarily
solved the problem by writing my own function not using any
pregs, eregs, or any other regs and it works perfectly. It's
probably not considered good programming, but it works the
way it is supposed to.
I would however like to know what the issue is with the
original code, or if this is actually a bug in PHP.
Thanks
-----Original Message-----
From: Beauford [mailto:phpuser@xxxxxxxxxx]
Sent: January 15, 2007 7:22 PM
To: 'PHP'
Subject: RE: I lied, another question / problem
-----Original Message-----
From: 'Roman Neuhauser' [mailto:neuhauser@xxxxxxxxxx]
Sent: January 15, 2007 7:53 PM
To: Beauford
Cc: 'PHP'
Subject: Re: I lied, another question / problem
# phpuser@xxxxxxxxxx / 2007-01-15 18:33:31 -0500:
From: Roman Neuhauser [mailto:neuhauser@xxxxxxxxxx] #
phpuser@xxxxxxxxxx / 2007-01-15 16:31:32 -0500:
I have file which I use for validating which includes the
following
function:
function invalidchar($strvalue) {
if(!ereg("^[[:alpha:][:space:]\'-.]*$", $strvalue)) {
That regexp matches if $strvalue consists of zero or more
ocurrences
of a letter, a whitespace character, and any character
whose numeric
value lies between the numeric values of "'" and "." in
your locale.
Zero or more means it also matches an empty string.
I'm still confused. This works perfectly on my other two
pages with
the exact same code. So why is it only this one page that
is causing a problem?
I don't know, I don't care. You have enough problems with
the single
regex, let's concentrate on fixing this first.
This certainly has a bearing. If the code works here then there is
nothing wrong with the code. There is something else going on.
If I enter the word "test" in my form, without the quotes,
then why is
the fuction returning anything since this is a valid entry.
Should it
not only return a value if there is a problem.
I don't understand that paragraph. The regexp matches, and the
function returns *nothing* just as you programmed it.
That, of course, means that the variable you are assigning this
*nothing* gets set to *nothing*, which, in PHP lingo, is null.
The problem is that it is returning *something*, and that's
what I am
trying to figure out.
If I put this in my code after I do the checking it works, but it
should not work if the function is retuning *nothing*.
So the original question remains, what is being returned and why?
If($formerror) echo "Testing"; This will display Testing -
it should
not display anything since nothing should be returned.
All I want to accomplish here is to allow the user to enter
a to z, A
to Z, and /\'-_. and a space. Is there a better way to do this?
1. Do you really want to let them enter backslashes, or are
you trying
to "escape" the apostrophe?
2. Does that mean that "/\'-_." (without the quotes) and "
" (that's
three spaces) are valid entries?
Where do you see 3 spaces? In any event, I don't think this is the
problem.
As I have said the code works fine on two other pages,
which logically
suggests that there is something on this page that is causing a
problem.
Thanks
--
PHP General Mailing List (http://www.php.net/) To
unsubscribe, visit:
http://www.php.net/unsub.php
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
