<?php // Note that !== did not exist until 4.0.0-RC2 if ($handle = opendir('/path/to/files')) { echo "Directory handle: $handle\n"; echo "Files:\n"; /* This is the correct way to loop over the directory. */ while (false !== ($file = readdir($handle))) { echo "$file\n"; } /* This is the WRONG way to loop over the directory. */ while ($file = readdir($handle)) { echo "$file\n"; } closedir($handle); } ?>