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@ 2014-02-04T19:41:08Z

<?
  $r = $g = $b = 0;
  while ($r <= 15) {
        while ($g <= 15) {
              while ($b <= 15) {
                    echo '<div style="width:5px;height:5px;float:left;background:#'.dechex($r).dechex($g).dechex($b).'"></div>';
                    //echo dechex($r).dechex($g).dechex($b).'<br>';
                    $b = $b+1;
              }
  		        $b = 0;
              $g = $g+1;
        }
        $g = 0;
        $r = $r+1;
  }
  $r = 0;
?>

Output
Performance
VLD
References
Branches

dechex: documentation ( source)

preferences:dark modelive preview

36.01 ms | 402 KiB | 5 Q