Re: beginner question about while loops

OK thanks again for helping through the stumbling blocks... I'm rolling again now. John W. Holmes wrote:

Just make sure $pictures is defined as an array before you try to push a value onto it (even using the method you have now), otherwise you'll get a warning.

It seems to be working fine this way without defining it as an array but I guess other languages would not accept that approach. while ($file = readdir($dh)){

        if (strstr ($file, '.jpg')){
        $pictures[] = $file;
        }