Помогите сделать переадресацию по ссылке

<?php
//соединение с БД
include "config_mysql.php";
//переменные:
$page =isset($_GET['State_Standard_Samples.php']);
$page =isset($_GET['Aromatic_substances.php']);
$page =isset($_GET['Indicators_dyes.php']);
$page =isset($_GET['Display_tubes.php']);
$page =isset($_GET['Laboratory_glass/Areometers.php']);
$page =isset($_GET['Laboratory_glass/General_purpose_products.php']);
$page =isset($_GET['Laboratory_glass/Measured_products.php']);
$page =isset($_GET['Laboratory_glass/Devices_and_devices.php']);
$page =isset($_GET['Laboratory_glass/Miscellaneous.php']);
$page =isset($_GET['Laboratory_glass/Thermometers_household.php']);
$page =isset($_GET['Laboratory_glass/Thermometers_technical.php']);
$page =isset($_GET['Nutrient_mediums_for_microbiology.php']);
$page =isset($_GET['Solvents.php']);
$page =isset($_GET['Standards_credits.php']);
$page =isset($_GET['Container_packing.php']);
$page =isset($_GET['Technical_production.php']);
$page =isset($_GET['Fabrics_technical.php']);
$page =isset($_GET['Refractory_substances.php']);
$page =isset($_GET['Filters.php']);
$page =isset($_GET['Chemical_reactants.php']);
$page =isset($_GET['Pure(Clean)_substances_for_a_chromatography.php']);

?>
<table border='1' cellspacing='0' cellpadding='1'>  
    <tr>  
        <td width='80%' align='center'>  
            <b>Группа товаров:</b>  
        </td>
        <td width='20%' align='center'>  
            <b>Кол-во наименований:</b>  
        </td>  
    </tr>
<?php
$result = mysql_query("SELECT group_production, COUNT(*) FROM `tovary` GROUP BY group_production ");
while ($t = mysql_fetch_array($result)) {
    print('
    <tr>  
        <td><a href=$[page]>'.$t['group_production'].'</a></td>
        <td>'.$t['COUNT(*)'].'</td>
    </tr>');
    }
    print('</table>');
?>
</table>