$db = file("filename.txt");
$i = 0;
while (isset($db[$i])) {
  $blah = explode(" ", strtolower(trim($db[$i])));
  $j = 0;
  while (isset($blah[$j])) {
    $t = $blah[$j];
    $t[0] = strtoupper($t[0]);
    $blah[$j] = $t;
    $j++;
  }
  echo implode(" ", $blah) . "\n";
  $i++;
}