Re: list all constitute group of array ?
| From: | Shawn McKenzie | Date: | Sat, 14 Feb 2009 01:00:45 +0000 |
| Subject: | Re: list all constitute group of array ? | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-288243@lists.php.net to get a copy of this message | ||
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