[PHP-WIN] How to make a picture gallery ?

How can I make my own picture gallery? I have one directory called Pictures and then there are more directories like Pics1, Pics2, I would like to have a php skript that would now i say something like pictures.php?dir=Pics1 and then it would show all pics in that directory. please say my h

[PHP-WIN] What's wrong ;(

Hi! Can someone change this line so that it works, please ? echo '' . $line["url"] . '';