/proc/cmptext(T1)
Usage:
cmptext(string1, string2, ...)
Returns:
num: 1 if all the provided arguments are the same, 0 otherwise

This proc is case insensitive, unlike cmpTextEx(). Any number of arguments can be given to this proc, and it will return 1 if they are all the same.

if(cmptext("letsplayagame", "LETSPLAYAGAME", "letsPlayAGame"))
    world.log << "Yay!" // "Yay!" is printed