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 01-04-2008, 04:13 PM #1 (permalink) Wildhoney La Vida es Sueño        Join Date: Sep 2007 Location: Oldham Posts: 2,283 Thanks: 90 The most inventive way to switch 2 values OK! A little game for you all The only objective is to switch the values of `\$a` and `\$b`. The values of `\$a` and `\$b` are 1 and 2, respectively: php Code: `\$a = 1;\$b = 2;` So for example this is an easy way to do it: php Code: `\$c = \$a;\$a = \$b;\$b = \$c;` However! We're not looking for the simplest way to do it, or the fastest, but rather, the most inventive way to do it! There are a couple of rules and those are: `eval` and `create_function` functions are disallowed. 8 lines maximum but lines with only `{` and `}` on do not count towards that total. This does not include the 2 initial assignments of `\$a` and `\$b`, or any echoes of the values `\$a` or `\$b`. You must have only one semi-colon per line (`;`) unless of course it's used elsewhere apart from indicating the end of a line. Thus you're not allowed to fuse 2 lines together into 1. The exception is a `for` loop to where you're allowed 2. So basically `\$a` must equal 2 and `\$b` must equal 1 at the end of your code. I'll start us off: php Code: `list(\$a, \$b) = str_split(strrev(\$a . \$b), 1);var_dump(\$a);var_dump(\$b);` Put that mind to work! Oh, and just for Karl, you can't just set `\$a` to 2 and `\$b` to 1 You have to reference the first 2 variables set! __________________ The man who comes back through the Door in the Wall will never be quite the same as the man who went out.