This function returns the number of characters comprising a given string. It can be useful for things like working out when to limit a custom text entry's character length (eg: capping a player's name to 10 characters). Remember that this is different to string_width in that it measures the number of characters in the string, not its width as drawn on the screen in pixels.
Argument Description string The string to measure the number of characters of.
if string_length(name) > 10
name = string_copy(name, 1, 10);
This will check if the string of name is greater than ten characters and if it is, it will copy and use the first ten characters only.