Actually the first code works in any php page:
<?php
$servidor = "localhost"; // database server
$usuario = "usuario"; // user
$senha = "senha"; // password
$banco = "login_banco"; // database name
$conecta = mysql_connect($servidor,$usuario,$senha);
if (!$conecta){ die('Error connecting: ' . mysql_error()); }
mysql_select_db($banco, $conecta);
$result = mysql_query("SELECT tk.date, rp.date, tk.id FROM tbltickets as tk, tblticketreplies as rp WHERE tk.id=rp.tid AND tk.admin='' GROUP BY tk.id ORDER BY tk.date DESC LIMIT 0,10");
while($row = mysql_fetch_array($result)) {
$tempo = abs(strtotime($row['0']) - strtotime($row['1']));
$minutos = floor(($tempo)/ 60);
$tempos[] = $minutos;
}
$media = round(array_sum($tempos)/10);
$horas = (int)($media / 60);
$h = $horas."h";
$minutos = $media - ($horas * 60);
$m = $minutos."min";
echo "Our average response time: ".$h."".$m;
mysql_close($conecta);
?>
Hope it helps