PHP: Unlink All Files Within A Directory, and then Deleting That Directory

Use glob() to easily loop through the directory to delete files then you can remove the directory.

foreach (glob($dir."/*.*") as $filename) {
    if (is_file($filename)) {
        unlink($filename);
    }
}
rmdir($dir);

Use glob to find all files matching a pattern.

function recursiveRemoveDirectory($directory)
{
    foreach(glob("{$directory}/*") as $file)
    {
        if(is_dir($file)) { 
            recursiveRemoveDirectory($file);
        } else {
            unlink($file);
        }
    }
    rmdir($directory);
}

The glob() function does what you're looking for. If you're on PHP 5.3+ you could do something like this:

$dir = ...
array_walk(glob($dir . '/*'), function ($fn) {
    if (is_file($fn))
        unlink($fn);
});
unlink($dir);