On Sun, Sep 16, 2007 at 07:09:02PM -0400, brian wrote:
> Richard Kurth wrote:
>> $Campaign_array| = array('0','1','3','5','8','15','25');|
>> I know that I can find the next recored in a array using next. What I do
>> not understand is if I know the last number was say 5 how do I tell the
>> script that that is the current number so I can select the next record
>> ||
>
> I think you'll need your own function for this.
Nope. Just use array_search().
$k = array_search('5',$Campaign_array);
if ($k + 1 > count($Campaign_array)) { echo $Campaign_array[$k + 1]; }
> Pass in the array and loop
> through it until you find the key, increment that, ensure that there is
> another value with that key, and return the key (or the value).
>
> (untested)
>
> function nextInArray($arr, $val)
> {
> $next_key = NULL;
>
> for ($i = 0; $i < sizeof($arr);$i++)
> {
> if ($arr[$i] == $val)
> {
> $next_key = ++$i;
> break;
> }
> }
>
> // return the key:
> return (array_key_exists($next_key) ? $next_key : NULL);
>
> // or the value:
> return (array_key_exists($next_key) ? $arr[$next_key] : NULL);
>
> }
>
> However, in your example, you're searching for the key that points to the
> value '5'. What if the value '5' occurs more than once?
>From the docs:
"If needle is found in haystack more than once, the first matching key
is returned. To return the keys for all matching values, use
array_keys() with the optional search_value parameter instead."
--
"Now what liberty can there be where property is taken without consent??"
-- Samuel Adams
Rick Pasotto rick@xxxxxxxx http://www.niof.net
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