hole in script - please help

Hello all,

just found a major problem with one of my scripts.

I need to stop people from entering usernames that are more than one word.

ie

Johnsmith - good
john smith - bad

i need to add some kind of form validation to stop this.

any ideas?

 

Use http://uk2.php.net/strpos to detect if a space is present in the data.

 

$newuser = strreplace(" ", "", $username);

echo "your username is $newuser";

 

i do some validation with js too - what would the code for that be?