Thank you all for your help!! You suggestions solve my problem!
Keith Smith
--- On Wed, 7/20/11, Kevin Brown wrote:
From: Kevin Brown
Subject: Re: PHP preg_match question
To: "Main PLUG discussion list"
Date: Wednesday, July 20, 2011, 10:44 PM
Another
Another way would be
if ($vaidateStr == preg_replace("/[^a-z0-9\-]/i", "", $vaidateStr)) {
/true, or valid...
}
the "i" after the last / makes it case insensitive. So it should match
upper and lower alpha characters.
Ah yes, I also forgot the uppercase chars
if ($vaidateStr ==
Ah yes, I also forgot the uppercase chars
if ($vaidateStr == preg_replace("/[^a-zA-Z0-9\-]/", "", $vaidateStr)) {
/true, or valid...
}
BTW also as Eric says, the carrot (^) inside the square brackets means
"anything but" (negation), thus how this works..
Ben
On Wed, Jul 20, 2011
From: keith smith
> I have an input string that should only be lower or upper alphas,
> numbers and can contain a hyphen. I'm trying to figure out how
> to get PHP preg_match to verify the input string only contains these
> chars.
> preg_match("/[a-z0-9\+\-]/", $vaidateStr)
http://crow202.org/
Here is the regular expression:
/^[a-zA-Z0-9\-]+$/
the ^ requires the pattern match at the beginning of the string.
The + requires at least one of these characters, but no upper limit. You can
use * if you don't need the lower limit of 1.
$ requires the patten match all the way to the end of the
Possibly:
$vaidateStr = "this is a test 1"; // not valid, contains spaces..
$compared = preg_replace("/[^a-z0-9\+\-]/", "", $vaidateStr);
$is_validated = $vaidateStr == $compared;
if ($is_validated) {
echo "valid\n";
}
else {
echo "not valid\n";
}
//
/
Hi,
I have an input string that should only be lower or upper alphas, numbers and
can contain a hyphen.
I'm trying to figure out how to get PHP preg_match to verify the input string
only contains these chars.
I tried some thing like this and it always returns true if I have one or more
o
