PagSeguro Wordpress WooCommerce

teste.php

<?php

$email = '';
$token = '';

$postdata = 'email=' . $email . '&token=' . $token . '&currency=BRL&itemId1=0001&itemDescription1=Notebook Prata&itemAmount1=243.00&itemQuantity1=1&itemWeight1=1000&itemId2=0002&itemDescription2=Notebook Rosa&itemAmount2=256.00&itemQuantity2=2&itemWeight2=750&reference=REF1234&senderName=Jose Comprador&senderAreaCode=11&senderPhone=56273440&[email protected]&shippingType=1&shippingAddressStreet=Av. Brig. Faria Lima&shippingAddressNumber=1384&shippingAddressComplement=5o andar&shippingAddressDistrict=Jardim Paulistano&shippingAddressPostalCode=01452002&shippingAddressCity=Sao Paulo&shippingAddressState=SP&shippingAddressCountry=BRA';

// Send back post vars.
$params = array(
    'body'          => $postdata,
    'sslverify'     => false,
    'timeout'       => 30,
    'headers'       => array( 'content-type' => 'application/x-www-form-urlencoded; charset=ISO-8859-1' )
);

// Check to see if the request was valid.
if ( !is_wp_error( $response ) && $response['response']['code'] == 200 && $response['response']['message'] == 'OK' ) {

    // Get the Body.
    $body = wp_remote_retrieve_body( $response );

    // XML to Object.
    $xml = new SimpleXMLElement($body);

} else {
   $xml->code = null;
}

if ( $xml->code ) :
?>
<a href="https://pagseguro.uol.com.br/v2/checkout/payment.html?code=<?php echo $xml->code; ?>" target="_blank">Pagar</a>
<?php endif; ?>