numeric order, when echoing, directory structure from array, how?

[Fking]

i'm using this code to read and save all sub-directories of one directory into array, the subdirectories are named with the number from 1 to 40

if ( $dh = @opendir($path) )
    {
    while ( false !== ( $file = readdir($dh) ) )
        {
        if ( $file != '.' && $file != '..' && $file != 'index.htm' && $file!='dont' )
            {
            $catch[] = $file;
            }
        }
    } 

after that with "for" i'm echoing them all, but the problem is that it sorts them alphabetical, 10,11,12......19,2,20 and so on
i need they be shown in numeric order, 1,2,3....19,20,21....

[Mordecai]

Using a for should show them in the order you specified. So, if you start at 0 and work your way up, it should follow in that order:

for ($i=0;$i<10;$i++) {}

However, you could also use a foreach:

foreach ($array as $key=>$value) {}
foreach ($array as $value) {}

As with the for, I'm not sure why you'd be getting them out of order. With the foreach, you may wish to [man]sort/man them.

[Fking]

it's not cause of the for, it's cause of the directory listing is sorted that way, and it enters in the array $file[] that way