Reading folder, ignore specific folder, randomly choose 1

[hatching]

How do I ignore folders to pull up like cgi-bin? After getting the subfolders, how do I randomly choose one of the folders pulled?

Here's what I have so far:

<?php 
$folder=dir("./"); 

while($folderEntry=$folder->read()){ 
echo $folderEntry."<br>"; 
} 

$folder->close(); 

?>

[NogDog]

You could do something like this:

<?php
$ignore = array(
   'cgi-bin',
   'includes',
   'super-duper-top-secret-stuff'
);

$folder=dir("./");

while($folderEntry=$folder->read()){
   if(!in_array($folderEntry, $ignore))
   {
      echo $folderEntry."<br>";
   }
}

$folder->close();

?>