Question about Regular Expressions

[Anthony P.]

Hello All,

I am fairly new to using regular expressions and I am totally lost as
to why the following code won't work. Basically, all I need to do is
find out if the text entered into a text field is an email address or
not (I'm searching for the "@" symbol. If it is, I want to display it
as a mailto link. If it's not, then I will just display the text. But
when I run the code it tries to create links out of EVERYTHING, not
just email addresses. Can someone point me in the right direction?
Thanks in advance and here's the code:

<?php
$contact = stripslashes($_POST['contact']);
$check = preg_match("/@/", $contact);
if($check){
...create the link here
}
else{
...just display the information
}
?>

Thanks!
Anthony

[Alvaro G Vicario]

*** Anthony P. wrote/escribió (1 Sep 2005 14:02:51 -0700):

I am fairly new to using regular expressions and I am totally lost as
to why the following code won't work. Basically, all I need to do is
find out if the text entered into a text field is an email address or
not (I'm searching for the "@" symbol. If it is, I want to display it
as a mailto link. If it's not, then I will just display the text. But
when I run the code it tries to create links out of EVERYTHING, not
just email addresses.

The code you paste just tests whether there's a @ symbol. How do you
extract the address itself?
BTW, this page may help:

http://www.merlyn.demon.co.uk/js-valid.htm#VEmA

It's for JavaScript but regex syntax is almost the same.

--
-- Álvaro G. Vicario - Burgos, Spain
-- http://bits.demogracia.com - Mi sitio sobre programación web
-- Don't e-mail me your questions, post them to the group
--

[Anthony P.]

Actually, I don't really *need* to extract the email address. I just
need to know IF it's an email address.

So, from what you're saying, it sounds like I'm doing the test
correctly. But, for some reason, it's still failing. Any ideas why?

Thanks!
Anthony

[Anthony P.]

BTW, thanks for the link!

[Alvaro G Vicario]

*** Anthony P. wrote/escribió (2 Sep 2005 11:59:34 -0700):

So, from what you're saying, it sounds like I'm doing the test
correctly. But, for some reason, it's still failing. Any ideas why?

Your error must be somewhere else then. Your code works fine for me.
--
-- Álvaro G. Vicario - Burgos, Spain
-- http://bits.demogracia.com - Mi sitio sobre programación web
-- Don't e-mail me your questions, post them to the group
--