How can PHP be used to retrieve data from an Access database accessed over VPN?

To retrieve data from an Access database accessed over VPN using PHP, you can establish a connection to the database using ODBC and specify the VPN connection details in the connection string. Make sure that the VPN connection is active before attempting to access the database.

<?php
// VPN connection details
$vpn_server = 'vpn.server.com';
$vpn_username = 'your_vpn_username';
$vpn_password = 'your_vpn_password';

// Establish VPN connection
exec("rasdial /disconnect");
exec("rasdial Your_VPN_Connection_Name $vpn_username $vpn_password");

// Database connection details
$database_path = 'C:/path/to/your/access/database.accdb';
$connection = odbc_connect("Driver={Microsoft Access Driver (*.mdb, *.accdb)};Dbq=$database_path", '', '');

// Retrieve data from Access database
$query = "SELECT * FROM your_table";
$result = odbc_exec($connection, $query);

while ($row = odbc_fetch_array($result)) {
    print_r($row);
}

// Close database connection
odbc_close($connection);

// Disconnect VPN
exec("rasdial Your_VPN_Connection_Name /disconnect");
?>