Prevent a single space in a form field

[suttercain]

Hi guys,

 

I am allowing the user to create a URL and I would like to prevent the form from processing if they type something like 'jake 12'

 

How would I check for a space?

 

Thanks.

 

SC

[Fadion]

if(strstr($string, ' ')){
    $string = str_replace(' ', '', $string);
}

[MadTechie]

if (!preg_match('/\s/', $string)) {
# No Space
} else {
# Has a Space
}