Just an update for anyone who walks this path in future days.
I ended up solving this problem using the ADOdb Database Abstraction Library for PHP http://adodb.sourceforge.net/
An example:
// Path to your dbc file
$path = '/path/to/the/file.dbc';
// Create A FoxPro connection
$db = ADONewConnection('vfp');
// Create DSN
$dsn = "Driver={Microsoft Visual FoxPro Driver};SourceType=DBC;SourceDB=" . path . ";Exclusive=No;";
// Contact or die trying
$db->Connect($dsn) or die('Error connect with Visual FoxPro Driver');
// Set fetch mode (this just makes the return values easier to parse)
$db->SetFetchMode(ADODB_FETCH_BOTH);
// Your Query - use ? as the var
$query = "SELECT fieldname_a, fieldname_b FROM tablename WHERE fieldname_c = ? AND fieldname_d = ?";
// Your Query Params
$queryParms = array('valueYouAreSearchingFor_c', 'valueYouAreSearchingFor_d');
// Execute the query
$rs = $db->Execute($query, $queryParms);
// An example looping the results (>= php5)
foreach ($rs as $row) {
// Print out examples
print_r($row);
echo $row["fieldname_a"];
echo $row["fieldname_b"];
}
// Don't forget to clean up after yourself
$rs->Close();