Re: List all possible 2 letter combinations of 8 letters

Ben Weinberger wrote: > > Hi~ > I'm trying to write a script that will list all 2 letter combinations of > given number of letters. For example, let's say I entered 8 letters "a, b, > c, d, e, f, g, h". I want the script to spit out all 2 letter > combinations-- i.e. ab, ac, ad, ae, etc.... Also, the script should make > sure it doesn't repeat any combinations-- I really have no idea where to > start on this one-- the only thing I know is that it will most likely be > within some sort of for/while loop... can someone help? > > Thanks, > -Ben > Off the top of my head... $foo = { "a", "b", "c", "d", "e", "f", "g", "h" }; $dim = 8; for ($n0 = 0; n0 < dim; n0++) { for (n1 = 0; n1 < dim; n1++) { echo $foo[n0] . $foo[n1]); } } Greetings, Jason -- Jason Murray Developer jWeb New Media Design 1 877 525 jWEB