Problem recursively building array

I'm attempting to build an array of filenames in a sub-directory with sub-directories. I'm using a modified version of code found on php.net - the function I wrote is here: function getDirList ($dirName) {

    $dirList=array();
    $d = dir($dirName);
    while ($entry = $d->read()) {
        if ($entry != "." && $entry != "..") {
            if (is_dir($dirName."/".$entry)) {
                echo "<b>Directory found: $entry</b><br>\n";
                $dirList = $dirList + getDirList($dirName."/".$entry);
            } else {
                $temp = $dirName."/".$entry;
                $temp = str_replace("/var/www/html/boarddocs/", "", $temp);
                echo $temp."<br>\n";
                $dirList[] = $temp;
            }
        }
    }
    return $dirList;

} It's called with: $bplist = getDirList($bppath); $bppath is correct. The problem is that although my testing of the function shows all of the entries correctly (note the 'echo $temp' line), not all of these entries are ending up in the array - in fact, large chunks of some directories, and all of other directories, are missing. Sample output is here: http://www.silvervalley.k12.ca.us/boarddocs/bpar.php Complete code is here: http://www.silvervalley.k12.ca.us/boarddocs/bpar.phps I'm gonna be real annoyed if I missed something stupid. I built as much debugging output into this as I thought I should, but your help will be appreciated. -- _______ ___ _ ____ _____ Chris Hobbs / ____\ \ / / | | |/ ___\| __ \ Head Geek | (___ \ \ / /| | | | (___ | | | | WebMaster \___ \ \ \/ / | | | |\___ \| | | | PostMaster ____) | \ / | |__| |____) | |__| | \____/ \/ \____/ \____/|_____/ http://www.silvervalley.k12.ca.us chobbs@silvervalley.k12.ca.us