TalkPHP - View Single Post - How would I use Email and password validation?

gilzow · 12-20-2007, 10:33 PM

Quote:

Originally Posted by Aaron

Okay, I think I might have had this answered several times... But... How exactly would I compare that stuff? The ereg/eregi function is really confusing O.o.

So sanitize everything with eregi? so like...

Code:

if(!eregi(A-Z0-9,$name)) {
    echo "Usernames can only be alphanumeric, please correct this.";
}

Also, the domain checker was mostly tutorial code. How exactly did you do that?

Regex patterns take awhile to get used to, but are EXTREMELY valuable. do a search for 'regex tutorial' and do some research on them. And I highly recommend Regex Buddy.

The pattern I typically use for a person's last name is

PHP Code:


			
$strPattern = '/^[A-Z0-9\'\-]+$/i';

which allows for alpha characters A-Z, numbers 0-9, a hyphen, and an apostrophe and is case-insensitive. This doesnt check for length, just that what I'm checking matches the pattern I've defined.

I've gotta run right now. I'll come back tomorrow to explain the XSS stuff.