Stuck with regular expression- help!

NorthernComfort

Hey... I'm stuck trying to build an email verification regular expression. Any help would be MUCH appreciated... Here's the code in question.

<html>
<head><title>The Test Page</title></head>
<body><font face="arial,helvetica" size="2">
<font size="5">Login</font><br><br>
<form method=post>
Email: <i><font color="gray">Must be standard email address</i></font><br>
<input type="text" name="email"><br><br>
<?
if (!eregi("^{[a-zA-Z0-9_]+@[a-zA-Z0-9-]+.[a-zA-Z0-9-.]+$",} $email))
{
echo "That is not a valid email address.";
exit;
}
?>
<input type= submit value = 'Submit'>
</form>
</body></html>

TheDefender

Change to:

IF(!eregi("^[a-z0-9]+([_\\.-][a-z0-9]+)*". "@([a-z0-9]+([\.-][a-z0-9]+))*$",$email)){
echo "That is not a valid email address."; 
exit; 
}

You don't need the A-Z since eregi() is a case-insensitive function.

NorthernComfort

Thanks, but it's still not working, whether I put in a valid email address or not...?

TheDefender

Your register globals is probably off, in which case, you need to extract your email variable out of the POST array.

$email = $_POST['email'];
IF(!eregi("^[a-z0-9]+([_\.-][a-z0-9]+)*". "@([a-z0-9]+([.-][a-z0-9]+))*$",$email)){ 
echo "That is not a valid email address.";  

exit;  

}

NorthernComfort

OK... stupid question.. but how to do that?

TheDefender

Refer to my second post above... or this one below... notice the added bold faced portion at the top...

[b]$email = $_POST['email'];[/b]
[COLOR=coral]IF(!eregi("^[a-z0-9]+([_.-][a-z0-9]+)*". "@([a-z0-9]+([.-][a-z0-9]+))*$",$email)){  

echo "That is not a valid email address.";   

exit;
}[/COLOR]

P.S. NO question is stupid unless it goes un-asked. (Or is asked by my in-laws.)

NorthernComfort

Still no dice- doesn't do anything.
The code at this point is...

<html>
<head><title>The Test Page</title></head>
<body><font face="arial,helvetica" size="2">
<font size="5">Login</font><br><br>
<form method=post>
Email: <i><font color="gray">Must be standard email address</i></font><br>
<input type="text" name="email"><br><br>
<?
$email = $_POST['email'];
IF(!eregi("^[a-z0-9]+([_.-][a-z0-9]+)*". "@([a-z0-9]+([.-][a-z0-9]+))*$",$email)){  

echo "That is not a valid email address.";   

exit;
}
?>
<input type= submit value = 'Submit'>
</form>
</body></html>

TheDefender

OK, first thing's first... Make a new file, copy and paste the following into it. Let me know what this does for you. It should show your login box, and when you enter the email address and all, and click submit, should echo whether it is valid or not below it. All of this should occur on the same page. We'll go on from there, once you get this working.

<?
$error = "";

IF(isset($_POST['email'])):
  $email = $_POST['email'];
  IF(!eregi("^[a-z0-9]+([_\\.-][a-z0-9]+)*". "@([a-z0-9]+([\.-][a-z0-9]+))*$",$email)):
    $error .= "That is not a valid email address.";
  ELSE:
    $error .= "That is a valid email address";
  ENDIF;
ENDIF;

?>

<html>
<head><title>The Test Page</title></head>
<body><font face="arial,helvetica" size="2">
<font size="5">Login</font><br><br>
<form method=post>
Email: <i><font color="gray">Must be standard email address</i></font><br>
<input type="text" name="email">&nbsp;<input type="submit" value="Submit">
</form>
<?
echo $error;
?>
</body></html>

TheDefender

Hey, I am running to the store before this storm comes (that's headed my way). Need food ;-) Anyhow, I will check in later...
TD

NorthernComfort

Well something is definitely fishy- I'm not getting anything, no matter what I toss in the box.
Time to figure out what the hell I did wrong with installing PHP then...
I'm still not too confident I did my config.inc.php file properly... that might be the problem perhaps? I know I have to fill out some stuff... do you have a similar file as well?
I'm running OSX 10.3..

And perhaps we're nearby- I've got a storm outside myself.

TheDefender

Can't help you there. I am running WinXP, and my webhost is a *NIX setup... I am in the Southeast US, and the storm was just a thunder threat (unlike the last 3 days). Whew. The rain is nice, but not the aftermath mugginess...