[Stinged]

Код:

new str[5], id;
new string[58] = "Lottery ID: 492 | Started By: Forum_Samp | Date: 11/22/33";
new pos = strfind(string, " |");
strmid(str, string, 12, pos);
id = strval(str);

printf("ID: %i", id);

Here's an example of doing it using the native string functions.

EDIT: Konstantinos already posted, didn't refresh the page.
I'm not sure if there's a huge speed difference to be honest.
(I know sscanf is going to be faster, I don't know by how much though)

EDIT 2: The difference really started showing when it ran more than 10000000 times.