$tariff_1 = '{"user_id":"'.$current_user['user_id'].'","tariff":"10","publications":"90"}';
$this->data['label_tariff_1'] = urlencode($tariff_1);<input type="hidden" name="label" value="<?php echo $label_tariff_1; ?>">
<input type="hidden" name="label" value="<?php echo $uid; ?>;<?php echo $tariff; ?>;<?php echo $publications; ?>"><input type="hidden" name="label" value="99999;10;90">$label_arr = explode(";", $label);
echo $label_arr[0]; // uid - 99999
echo $label_arr[1]; // tariff - 10
echo $label_arr[1]; // publications - 90