FoxPro/Visual FoxPro - Visual Fox con PHP

<?php

include($_SERVER['DOCUMENT_ROOT']."/DGF/adodb/adodb.inc.php");

class con_planti

{

	function query ($sql)

	{

		$conn = ADONewConnection('vfp') or die("Cannot start ADO"); # create a connection

		$conn->Connect('planti_vfp'); # connect to Foxpro, advassistant DSN

		$conn->SetFetchMode(ADODB_FETCH_ASSOC);

		$rs = $conn->Execute($sql);

		return $rs;

		if ($conn->Affected_Rows()>0)

			return $rs;

		else

			return null;

	}

}

?>

<?php

include($_SERVER['DOCUMENT_ROOT']."/DGF/adodb/adodb.inc.php");

require('con_planti.php');

class planti_service extends con_planti

{

	function buscaRFC( $anio, $qna, $tipo, $rfc )

	{

		if ( $qna < 10 )

		   $qna = "0" . $qna ;

	   if ( $anio < 10 )

		   $anio = "0" . $anio ;

		$nomina = "N" . $tipo . $anio . $qna ;

		$SQL = "select cct, rfc, nombre, plaza, puesto, municipio, percepcion, deduccion, importe, desde, hasta from " . $nomina . " where rfc like  '$rfc%'";

		if ( $rs = $this->query($SQL) )

			$datos = $rs->GetRows();

		else

			{$datos = null;}

		return $datos ;

	}

}