PHP

Mail

<?php
$to = "someone@example.com";
$subject = "Test mail";
$message = "Hello! This is a simple email message.";
$from = "someonelse@example.com";
$headers = "From: $from";
mail($to,$subject,$message,$headers);
echo "Mail Sent.";
?>

Info

<?php phpinfo(); ?>

Time Code

http://php.net/manual/en/function.microtime.php

db

<?php 
$username = "yourusername"; 
$password = "yourpassword"; 
$hostname = "yourhostnameaddress"; 
$dbname = "yourdbname";

//connection to the database
$dbhandle = mysql_connect($hostname, $username, $password) or die("Unable to connect to MySQL"); 
echo "Connected to MySQL using username - $username, password - $password, host - $hostname
"; 
$selected = mysql_select_db("$dbname",$dbhandle)   or die("Unable to connect to MySQL DB - check the database name and try again."); 
?>