การเขียน PHP ติดต่อกับ DBF (PHP Connect to DBASE or DBF FILE)

<?php
$connection_string = 'DRIVER={Microsoft dBase Driver (*.dbf)};datasource=C:\AppServ\www\subject.dbf;';
$user = '';
$pass = '';
 $odbc = odbc_connect ($connection_string, '', '') or die('Could Not Connect to ODBC Database!');
$strsql= 'SELECT * FROM C:\AppServ\www\subject.dbf';
$query = odbc_exec($odbc, $strsql) or die (odbc_errormsg());
while($row = odbc_fetch_object($query)){
echo $row->SUBNAME."<br>";
}
?>