<?php

$dbhost = 'host';

$dbport = '3306';

$dbusername = 'root';

$dbpassword = 'password';

$dbdatabase = 'invoices';

$username = 'username';

$password = 'password';

//mysql_connect($dbhost.':'.$dbport, $dbusername, $dbpassword) or die ("<h1>Server unreachable</h1>");

//mysql_select_db($dbdatabase) or die ("<h1>cannot connect to database</h1>");

try{

$db = new PDO("mysql:host={$dbhost};port={$dbport};dbname={$dbdatabase}", $dbusername, $dbpassword, array(PDO::ATTR_PERSISTENT => true));

} catch (PDOException $e) {

echo 'Connection failed: ' . $e->getMessage();

exit;

}

function check_input($value)

}

foreach($_REQUEST as $key => $value)

{

$_REQUEST[$key] = check_input($value);

}

?>