ahora si pude
Código PHP:
<?php
$mysqli = new mysqli("localhost", "root", "123456", "pruebas");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$cons = "SELECT * FROM tabla1";
echo"$cons <br>";
/* execute multi query */
if ($result=$mysqli->query($cons))
{
echo"Ejecuto Consulta...<br>";
$c=$result->num_rows;
echo"C: $c<br>";
echo"tomo resultado... <br>";
while ($R = $result->fetch_array())
{
$id=$R["id"];
$campo1=$R["campo1"];
echo"$id $campo1 <br>";
}
$result->close();
}
/* close connection */
$mysqli->close();
?>
Gracias