display random image including sub dirs

[fris]

i have code to display an image in 1 directory, does anyone have something that will search all sub dirs within the root tree

say

main
humor
weird
etc

but it will scan them all, i have about 80 sub dirs, i dont wanna put in an array.

thanks.

[bubblenut]

Check out the comments on the manual page for [man]opendir[/man]. There are a couple of implementations of recursive directory iterators there. Alternatively, if you're using PHP5 you can use the RecursiveDirectoryIterator.

Once you have a way of recursively iterating your directories you need a way of extracting jut the image files. The simplest way is to work by the file's extension.

if(preg_match('/\.(gif|jpe?g|png|bmp)$/', $file_name)) {
  echo("It's an image");
} else {
  echo("It's not an image");
}