[PHP] counting files, choosing at random

[David Otton]

On Wed, 13 Aug 2003 10:54:58 +0200, you wrote:

>
> I want to choose a file at random from a
> directory which adheres to certain naming scheme.
> I can't get it to work. It's probably something
> simple...Here is a relevant snippet:
>
><img src="/szukaj/images/i
><?
>chdir('./szukaj/images/');
>echo mt_rand(0, count(glob('i*.gif', GLOB_NOSORT)) - 1);
>?>

Wrapping the glob() in the count() is just throwing away the filenames. Try
something more like this.

$names = glob('i*.gif', GLOB_NOSORT);
if (sizeof ($names))
{
$offset = mt_rand (0, sizeof ($names));
$name = $names[$offset];
} else {
$name = 'not found';
}
echo ($name);

[Adam I Agnieszka Gasiorowski Fnord]

David Otton wrote:

> On Wed, 13 Aug 2003 10:54:58 +0200, you wrote:
>

> >
> > I want to choose a file at random from a
> > directory which adheres to certain naming scheme.
> > I can't get it to work. It's probably something
> > simple...Here is a relevant snippet:
> >
> ><img src="/szukaj/images/i
> ><?
> >chdir('./szukaj/images/');
> >echo mt_rand(0, count(glob('i*.gif', GLOB_NOSORT)) - 1);
> >?>

>
> Wrapping the glob() in the count() is just throwing away the filenames. Try
> something more like this.
>
> $names = glob('i*.gif', GLOB_NOSORT);
> if (sizeof ($names))
> {
> $offset = mt_rand (0, sizeof ($names));
> $name = $names[$offset];
> } else {
> $name = 'not found';
> }
> echo ($name);

Thank you, it solved my problem (after
minor tweaking). This list is just so great! :8].

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