Question

I want a script which should alert the user if space is entered in the text field.I think it requires javascript.I am writing a script in which i don’t want user to enter space in the text fields.

Answer 1

The following function worked

$returnValue = preg_match('/[^a-z^A-Z^0-9]/', $str, $matches);
if ($returnValue==1) 
{
    alert("spaces & symbols are not allowed");
}

Note: It not only restricts spaces but also restricts symbols.