Aqui o mando todo el codigo
<?php
mysql_connect("localhost", "user", "user") or die(mysql_error());
$_SESSION['dbase'] = "fac.clientes";
mysql_select_db($_SESSION['dbase']);
session_start();
if (!isset($_SESSION['page']) || !isset($_GET['page'])) {
$_SESSION['page'] = 1;
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<form action="?page=2" method="post">
<tr>
<td colspan="2"><div align="center"><strong><font size="+2" face="Verdana, Arial, Helvetica, sans-serif">Seleciona cliente</font></strong></div></td>
</tr>
<tr>
<td>Clientes: </td>
<td><select name="clientes">
<?php
$query = mysql_query( "SELECT `nombre` FROM `fac`.`clientes`" );
//while($show = mysql_fetch_array($query))
{
echo '<option value="'.$show['nombre'].'">'.$show['nombre'].'</option>';
}
?>
</select></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="submit" value=" Submit "></td>
</tr>
</form>
</table>
<?php
} else {
switch($_GET['page']) {
case '2':
echo "nombre: ".$row['nombre'];
echo " Cif: ".$row['CIF'];
?>
Este codigo ha ido copiado de otro para importar csv donde e elige bbdd, tabla y upload csv.