PHP Play Page

"; if (is_readable($filename)) { echo "  is readable
"; } else { echo "  *** is NOT readable
"; } if (is_file($filename)) { echo "  is a file
"; } else { echo "  *** is NOT a file
"; } if (file_exists($filename)) { echo "  exists as file
"; } else { echo "  *** does NOT exist as file
"; } echo "
"; } ?>