Re: How do I start at a specific position in an array? Is there
| From: | Richard Lynch | Date: | Mon, 10 Jan 2005 16:28:43 +0000 |
| Subject: | Re: How do I start at a specific position in an array? Is there | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-205970@lists.php.net to get a copy of this message | ||
Thomas Goyne wrote:
> On Sun, 09 Jan 2005 15:59:43 +0100, M. Sokolewicz <tularis@php.net> wrote:
>
>> that's not a SPECIFIC place in the array, that's just current, next and
>> previous. AFAIK there is no way to explicitly set the internal pointer
>> of the array to a spcified place. I used a function which basically
>> looped trough the array until it got to the correct depth, and then
>> returned it by reference....but it's not very efficient :S
>>
>
> Why would you ever want to do that other than to waste cycles?
I'll give you a simple case.
I have a GTK PHP MP3 ID3 editor application I'm working on.
When one opens a file in a directory, I provide next/prev buttons to
quickly page to the next/prev file in the directory.
Getting the next/prev to work is simple enough, but...
I've got the whole array built from opendir/readdir, and sorted it into
alphabetical order.
I've got a filename inside that array, from the pre-defined
GtkFileSelection dialog.
So I need to initialize the internal array pointer to the position of the
file within that array, there is no such PHP function.
See also:
http://bugs.php.net/bug.php?id=31375
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