if (ob_get_level() == 0) {
     ob_start();
 }
 echo str_pad('Loading... ',4096)."
\n";
 for ($i = 0; $i < 25; $i++) {
     $d = $d + 11;
     $m=$d+10;
     //This div will show loading percents
     echo '<div class="percents">' . $i*4 . '% complete</div>';
     //This div will show progress bar
     echo '<div class="blocks" style="left: '.$d.'px"> </div>';
     flush();
     ob_flush();
     sleep(1);
 }
ob_end_flush();