Re: Deleting elements from the middle of an array

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 14 March 2011 21:31, Paul M Foster <paulf@xxxxxxxxxxxxxxxxx> wrote:
> Here's what I need to do: I have an indexed array, from which I need to
> delete elements in the middle. Once completed, the indexes should be
> numerically in sequence, as they were when I first encountered the
> array. That is:
>
> Before:
> $arr = array(0 => 5, 1 => 6, 2 => 7, 3 => 8, 4 => 9, 5 => 10);
>
> After:
> $arr = array(0 => 5, 1 => 6, 2 => 9, 3 => 10);
>
>
> I've tried:
>
> 1) Using for() with unset(). Elements are deleted, but the indexes are
> no longer sequential.
>
> 2) Using for() with array_splice(). Understandably, deletes certain
> elements but not others.
>
> 3) Using foreach() with referenced array elements. Neither unset() nor
> array_splice() appear to have any effect on the array at all.
>
> 4) while() loop using current() and the like. But these array functions
> return values, not references, so the array isn't actually modified.
>
> 5) array_walk() with unset() array_splice(). No effect on the array.
>
> Anyone know how to do this, or know of a reference on how to?
>

Remove the elements, then use sort().

Regards
Peter


-- 
<hype>
WWW: plphp.dk / plind.dk
LinkedIn: plind
BeWelcome/Couchsurfing: Fake51
Twitter: kafe15
</hype>

-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php



[Index of Archives]     [PHP Home]     [Apache Users]     [PHP on Windows]     [Kernel Newbies]     [PHP Install]     [PHP Classes]     [Pear]     [Postgresql]     [Postgresql PHP]     [PHP on Windows]     [PHP Database Programming]     [PHP SOAP]

  Powered by Linux