/**
  * echoes css and html for sql log
  * @return void
  */
 public function print_log()
 {
     if (!$this->enable_log || DEV && !DEBUG || !(UserAuth::is_local() || php_sapi_name() == 'cli' && empty($_SERVER['REMOTE_ADDR']))) {
         return;
     }
     echo '<style>.query_log {margin:0px;padding:0px; width:100%; box-shadow: 10px 10px 5px #888888; border:1px solid #000000; -moz-border-radius-bottomleft:0px; -webkit-border-bottom-left-radius:0px; border-bottom-left-radius:0px; -moz-border-radius-bottomright:0px; -webkit-border-bottom-right-radius:0px; border-bottom-right-radius:0px; -moz-border-radius-topright:0px; -webkit-border-top-right-radius:0px; border-top-right-radius:0px; -moz-border-radius-topleft:0px; -webkit-border-top-left-radius:0px; border-top-left-radius:0px; }.query_log table{border-collapse: collapse; border-spacing: 0; width:100%; height:100%; margin:0px;padding:0px; }.query_log tr:last-child td:last-child {-moz-border-radius-bottomright:0px; -webkit-border-bottom-right-radius:0px; border-bottom-right-radius:0px; } .query_log table tr:first-child td:first-child {-moz-border-radius-topleft:0px; -webkit-border-top-left-radius:0px; border-top-left-radius:0px; } .query_log table tr:first-child td:last-child {-moz-border-radius-topright:0px; -webkit-border-top-right-radius:0px; border-top-right-radius:0px; }.query_log tr:last-child td:first-child{-moz-border-radius-bottomleft:0px; -webkit-border-bottom-left-radius:0px; border-bottom-left-radius:0px; }.query_log tr:hover td{} .query_log tr.master{ background-color:#ffaa56; } .query_log tr.slave   { background-color:#ffffff; }.query_log td{vertical-align:middle; border:1px solid #000000; border-width:0px 1px 1px 0px; text-align:left; padding:7px; font-size:10px; font-family:Arial; font-weight:normal; color:#000000; }.query_log tr:last-child td{border-width:0px 1px 0px 0px; }.query_log tr td:last-child{border-width:0px 0px 1px 0px; }.query_log tr:last-child td:last-child{border-width:0px 0px 0px 0px; } .query_log tr:first-child td{background:-o-linear-gradient(bottom, #ff7f00 5%, #bf5f00 100%);	background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #ff7f00), color-stop(1, #bf5f00) ); background:-moz-linear-gradient( center top, #ff7f00 5%, #bf5f00 100% ); filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#ff7f00", endColorstr="#bf5f00");	background: -o-linear-gradient(top,#ff7f00,bf5f00); background-color:#ff7f00; border:0px solid #000000; text-align:center; border-width:0px 0px 1px 1px; font-size:14px; font-family:Arial; font-weight:bold; color:#ffffff; } .query_log tr:first-child:hover td{background:-o-linear-gradient(bottom, #ff7f00 5%, #bf5f00 100%);	background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #ff7f00), color-stop(1, #bf5f00) ); background:-moz-linear-gradient( center top, #ff7f00 5%, #bf5f00 100% ); filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="#ff7f00", endColorstr="#bf5f00");	background: -o-linear-gradient(top,#ff7f00,bf5f00); background-color:#ff7f00; } .query_log tr:first-child td:first-child{border-width:0px 0px 1px 0px; } .query_log tr:first-child td:last-child{border-width:0px 0px 1px 1px; }.query_log table tr.error td{background-color:red;color:#fff;font-weight:bold;}</style>';
     echo "<div class='query_log'>\n\t\t\t<table style='table-layout:fixed;'>\n\t\t\t\t<tr>\n\t\t\t\t\t<td>Start</td><td>Query</td><td>Records</td><td>Time Taken</td><td>Connection</td><td>Error</td>\n\t\t\t\t</tr>";
     echo "<tr><td colspan='4'>Total Queries Executed: " . count($this->queries) . "</td></tr>";
     foreach ((array) $this->queries as $key => $query) {
         $class = "";
         if ($query["error"] || $query["time"] > 1) {
             $class = "error";
         }
         echo "<tr class='{$class} {$query['connection']}'>\n\t\t\t\t<td>{$query['start']}</td><td>{$query['query']}</td><td>{$query['records']}</td><td>{$query['time']}</td><td>{$query['connection']}</td><td>{$query['error']}</td>\n\t\t\t</tr>";
     }
     echo "</table>\n\t\t\t</div>";
 }