string_lettersdigits(str);
| Argument | Description |
|---|---|
| str | The string to convert to letters and digits. |
Returns: String
This function will return a copy of a given string with
everything but its letters and digits removed, which means it can
be used to remove any unwanted characters (like "#" or "?") from,
for example, a login name or a password.
Note: This function only detects the 26 letter english alphabet
from A - Z.
if string_length(password) >
string_length(string_lettersdigits(password))
{
draw_text(32,32,"Invalid Password! Only Letters
and numbers please!");
}
The above code will check the length of a string against the length of the same string, but with all symbols removed. If they are not the same a message is drawn on the screen.