Include PHP in custom pages

[rayw]

<?php
$_ip = $_SERVER['REMOTE_ADDR'];
echo "Enter the IP Address or domain name of the server that you want to ping.<br>";
echo "<form method='post' action='ping.php?do=ping'><input type='text' name='domain' value=''>&nbsp;<input type='submit' value='Ping'></form>";
if($_GET['do'] == 'ping')
{
$_domain = $_POST['domain'];
		echo "<pre>";
                   system ("ping -w 10 -c 5 $_domain");

  		echo "</pre>";
}
echo "<br>";
 ?>