Re: list all constitute group of array ?

Shawn McKenzie wrote: > 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. > Or, if I actually read your post they are values, so maybe array_values() or you can check http://php.net/manual/book.array.php and hope you get an A. -- Thanks! -Shawn http://www.spidean.com