Robert Cummings wrote: > On Sat, 2009-02-14 at 07:41 +0800, LKSunny wrote: >> <? >> $a = array("a", "b", "c", "d"); >> >> /* >> how to list: >> abcd >> abc >> ab >> ac >> ad >> bcd >> bc >> bd >> cd >> a >> b >> c >> d >> >> who have idea ? thank you very much !! >> */ >> ?> > > This looks like homework. Use recursion. > > Cheers, > Rob.
Well, I don't know how you list them in that pattern, you need to write an algorithm, but array_keys() will give keys for the array. -- Thanks! -Shawn http://www.spidean.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php