validation to deny spaces in usernames and passwords?

[tippytarka]

i'm trying to modify the validation of my registration form to stop users from entering spaces and blank info. can you help? here's my script...

if (
		$username_check == "" &&
		$passwd 		== "" &&
		$email_check 	== "" 
		) {
		$all_fields_empty ="register for free";
		return $all_fields_empty;

cheers

 

[jpadie]

i would use a preg_match to test each field against the rules you set. have a look at

http://www.regular-expressions.info

for example regex strings for emails et al.

 

[Aron2]

learning regex is fun, or at least knowing it is. I'm relatively new to it, but I can tell you it's the best there is for form validation. That said, matching a white space doesn't require regex.

if (strpos($username_check, " ") && strpos($passwd, " ") && strpos($email_check, " ")){
// have some fuuun!!
}

Check out my blog: defrex.com

 

[jpadie]

aron2 - your strpos code would catch whitespace inside a username or pwd, which might be (and usually is) legitimate.