I am trying to input an option into exist code but i get this error: "Undefined variable: options in /home/dealsyno/xxxx/product/category.tpl on line 91"

Kindly see below the code.

<?php echo $header; ?><?php echo $column_left; ?><?php echo $column_right; ?>
<div id="content"><?php echo $content_top; ?>
  <div class="breadcrumb">
    <?php foreach ($breadcrumbs as $breadcrumb) { ?>
    <?php echo $breadcrumb['separator']; ?><a href="<?php echo $breadcrumb['href']; ?>"><?php echo $breadcrumb['text']; ?></a>
    <?php } ?>
  </div>
  <h1><?php echo $heading_title; ?></h1>
  <?php if ($thumb || $description) { ?>
  <div class="category-info">
    <?php if ($thumb) { ?>
    <div class="image"><img src="<?php echo $thumb; ?>" alt="<?php echo $heading_title; ?>" /></div>
    <?php } ?>
    <?php if ($description) { ?>
    <?php echo $description; ?>
    <?php } ?>
  </div>
  <?php } ?>
  <?php if ($categories) { ?>
  <h3><?php echo $text_refine; ?></h3>
  <div class="category-list">
    <?php if (count($categories) <= 5) { ?>
    <ul>
      <?php foreach ($categories as $category) { ?>
      <li><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a></li>
      <?php } ?>
    </ul>
    <?php } else { ?>
    <?php for ($i = 0; $i < count($categories);) { ?>
    <ul>
      <?php $j = $i + ceil(count($categories) / 4); ?>
      <?php for (; $i < $j; $i++) { ?>
      <?php if (isset($categories[$i])) { ?>
      <li><a href="<?php echo $categories[$i]['href']; ?>"><?php echo $categories[$i]['name']; ?></a></li>
      <?php } ?>
      <?php } ?>
    </ul>
    <?php } ?>
    <?php } ?>
  </div>
  <?php } ?>
  <?php if ($products) { ?>
  <div class="product-filter">
    <div class="display_buttons"><b><?php echo $text_display; ?></b><a class="switch_thumb" href="#">Switch Thumb</a></div>
    <div class="product-compare"><a href="<?php echo $compare; ?>" id="compare_total"><?php echo $text_compare; ?></a></div>
    <div class="limit"><b><?php echo $text_limit; ?></b>
      <select onchange="location = this.value;">
        <?php foreach ($limits as $limits) { ?>
        <?php if ($limits['value'] == $limit) { ?>
        <option value="<?php echo $limits['href']; ?>" selected="selected"><?php echo $limits['text']; ?></option>
        <?php } else { ?>
        <option value="<?php echo $limits['href']; ?>"><?php echo $limits['text']; ?></option>
        <?php } ?>
        <?php } ?>
      </select>
    </div>
    <div class="sort"><b><?php echo $text_sort; ?></b>
      <select onchange="location = this.value;">
        <?php foreach ($sorts as $sorts) { ?>
        <?php if ($sorts['value'] == $sort . '-' . $order) { ?>
        <option value="<?php echo $sorts['href']; ?>" selected="selected"><?php echo $sorts['text']; ?></option>
        <?php } else { ?>
        <option value="<?php echo $sorts['href']; ?>"><?php echo $sorts['text']; ?></option>
        <?php } ?>
        <?php } ?>
      </select>
    </div>
  </div>
  <ul class="display">
    <?php foreach ($products as $product) { ?>
    <li>
    <div class="content_block">
      <?php if ($product['thumb']) { ?>
      <div class="image"><a href="<?php echo $product['href']; ?>"><img src="<?php echo $product['thumb']; ?>" title="<?php echo $product['name']; ?>" alt="<?php echo $product['name']; ?>" /></a></div>
      <?php } ?>
      <h3><?php echo $product['name']; ?></h3>
      <div class="description"><?php echo $product['description']; ?></div>
      <?php if ($product['price']) { ?>
      <span class="big_label">
      <b><?php echo $text_price; ?></b><br />
        <?php if (!$product['special']) { ?>
        <span class="main_price"><?php echo $product['price']; ?></span>
        <?php } else { ?>
        <span style="color: #df007c; font-weight: bold; text-decoration: line-through; font-size:12px;"><?php echo $product['price']; ?></span><br /> <span class="main_price2"><?php echo $product['special']; ?></span>
        <?php } ?>
      </span>
      <?php } ?>
      <?php if ($product['rating']) { ?>
      <div class="rating"><img src="catalog/view/theme/default/image/stars-<?php echo $product['rating']; ?>.png" alt="<?php echo $product['reviews']; ?>" /></div>
      <?php } ?>
      
       <?php if ($options) { ?>
      <div class="options fixed">
        <h2><?php echo $text_option; ?></h2>
        <br />
        <?php foreach ($options as $option) { ?>
        <?php if ($option['type'] == 'select') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <select name="option[<?php echo $option['product_option_id']; ?>]">
            <option value=""><?php echo $text_select; ?></option>
            <?php foreach ($option['option_value'] as $option_value) { ?>
            <option value="<?php echo $option_value['product_option_value_id']; ?>"><?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
            </option>
            <?php } ?>
          </select>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'radio') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <?php foreach ($option['option_value'] as $option_value) { ?>
          <input type="radio" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option_value['product_option_value_id']; ?>" id="option-value-<?php echo $option_value['product_option_value_id']; ?>" />
          <label for="option-value-<?php echo $option_value['product_option_value_id']; ?>"><?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
          </label>
          <br />
          <?php } ?>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'checkbox') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <?php foreach ($option['option_value'] as $option_value) { ?>
          <input type="checkbox" name="option[<?php echo $option['product_option_id']; ?>][]" value="<?php echo $option_value['product_option_value_id']; ?>" id="option-value-<?php echo $option_value['product_option_value_id']; ?>" />
          <label for="option-value-<?php echo $option_value['product_option_value_id']; ?>"> <?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
          </label>
          <br />
          <?php } ?>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'text') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'textarea') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <textarea name="option[<?php echo $option['product_option_id']; ?>]" cols="40" rows="5"><?php echo $option['option_value']; ?></textarea>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'file') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <a id="button-option-<?php echo $option['product_option_id']; ?>" class="button"><span><?php echo $button_upload; ?></span></a>
          <input type="hidden" name="option[<?php echo $option['product_option_id']; ?>]" value="" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'date') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="date" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'datetime') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="datetime" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'time') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="time" />
        </div>
        <br />
        <?php } ?>
        <?php } ?>
      </div>
       <?php } ?>
      <div class="cart"><a onclick="addToCart('<?php echo $product['product_id']; ?>');" title="<?php echo $button_cart; ?>"><?php echo $button_cart; ?></a></div>
      <div class="wishlist"><a onclick="addToWishList('<?php echo $product['product_id']; ?>');" title="<?php echo $button_wishlist; ?>"><?php echo $button_wishlist; ?></a></div>
      <div class="compare"><a onclick="addToCompare('<?php echo $product['product_id']; ?>');" title="<?php echo $button_compare; ?>"><?php echo $button_compare; ?></a></div>
    </div>
    </li>
    <?php } ?>
  </ul>
  <div class="pagination"><?php echo $pagination; ?></div>
  <?php } ?>
  <?php if (!$categories && !$products) { ?>
  <div class="content"><?php echo $text_empty; ?></div>
  <div class="buttons">
    <div class="right"><a href="<?php echo $continue; ?>" class="button"><span><?php echo $button_continue; ?></span></a></div>
  </div>
  <?php } ?>
  <?php echo $content_bottom; ?></div>
<script type="text/javascript"><!--
$(document).ready(function(){

    $("a.switch_thumb").toggle(function(){
        $(this).addClass("swap");
        $("ul.display").fadeOut("fast", function() {
            $(this).fadeIn("fast").addClass("thumb_view");
        });
    }, function () {
        $(this).removeClass("swap");
        $("ul.display").fadeOut("fast", function() {
            $(this).fadeIn("fast").removeClass("thumb_view");
        });
    });

});
//--></script> 
<?php echo $footer; ?>

Kindly point out the offending line next time. It just means it has no value yet. You can check with isset().

The error is from the line in red. Thanks for your response but how do i add value to it.

<?php echo $header; ?><?php echo $column_left; ?><?php echo $column_right; ?>
<div id="content"><?php echo $content_top; ?>
  <div class="breadcrumb">
    <?php foreach ($breadcrumbs as $breadcrumb) { ?>
    <?php echo $breadcrumb['separator']; ?><a href="<?php echo $breadcrumb['href']; ?>"><?php echo $breadcrumb['text']; ?></a>
    <?php } ?>
  </div>
  <h1><?php echo $heading_title; ?></h1>
  <?php if ($thumb || $description) { ?>
  <div class="category-info">
    <?php if ($thumb) { ?>
    <div class="image"><img src="<?php echo $thumb; ?>" alt="<?php echo $heading_title; ?>" /></div>
    <?php } ?>
    <?php if ($description) { ?>
    <?php echo $description; ?>
    <?php } ?>
  </div>
  <?php } ?>
  <?php if ($categories) { ?>
  <h3><?php echo $text_refine; ?></h3>
  <div class="category-list">
    <?php if (count($categories) <= 5) { ?>
    <ul>
      <?php foreach ($categories as $category) { ?>
      <li><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a></li>
      <?php } ?>
    </ul>
    <?php } else { ?>
    <?php for ($i = 0; $i < count($categories);) { ?>
    <ul>
      <?php $j = $i + ceil(count($categories) / 4); ?>
      <?php for (; $i < $j; $i++) { ?>
      <?php if (isset($categories[$i])) { ?>
      <li><a href="<?php echo $categories[$i]['href']; ?>"><?php echo $categories[$i]['name']; ?></a></li>
      <?php } ?>
      <?php } ?>
    </ul>
    <?php } ?>
    <?php } ?>
  </div>
  <?php } ?>
  <?php if ($products) { ?>
  <div class="product-filter">
    <div class="display_buttons"><b><?php echo $text_display; ?></b><a class="switch_thumb" href="#">Switch Thumb</a></div>
    <div class="product-compare"><a href="<?php echo $compare; ?>" id="compare_total"><?php echo $text_compare; ?></a></div>
    <div class="limit"><b><?php echo $text_limit; ?></b>
      <select onchange="location = this.value;">
        <?php foreach ($limits as $limits) { ?>
        <?php if ($limits['value'] == $limit) { ?>
        <option value="<?php echo $limits['href']; ?>" selected="selected"><?php echo $limits['text']; ?></option>
        <?php } else { ?>
        <option value="<?php echo $limits['href']; ?>"><?php echo $limits['text']; ?></option>
        <?php } ?>
        <?php } ?>
      </select>
    </div>
    <div class="sort"><b><?php echo $text_sort; ?></b>
      <select onchange="location = this.value;">
        <?php foreach ($sorts as $sorts) { ?>
        <?php if ($sorts['value'] == $sort . '-' . $order) { ?>
        <option value="<?php echo $sorts['href']; ?>" selected="selected"><?php echo $sorts['text']; ?></option>
        <?php } else { ?>
        <option value="<?php echo $sorts['href']; ?>"><?php echo $sorts['text']; ?></option>
        <?php } ?>
        <?php } ?>
      </select>
    </div>
  </div>
  <ul class="display">
    <?php foreach ($products as $product) { ?>
    <li>
    <div class="content_block">
      <?php if ($product['thumb']) { ?>
      <div class="image"><a href="<?php echo $product['href']; ?>"><img src="<?php echo $product['thumb']; ?>" title="<?php echo $product['name']; ?>" alt="<?php echo $product['name']; ?>" /></a></div>
      <?php } ?>
      <h3><?php echo $product['name']; ?></h3>
      <div class="description"><?php echo $product['description']; ?></div>
      <?php if ($product['price']) { ?>
      <span class="big_label">
      <b><?php echo $text_price; ?></b><br />
        <?php if (!$product['special']) { ?>
        <span class="main_price"><?php echo $product['price']; ?></span>
        <?php } else { ?>
        <span style="color: #df007c; font-weight: bold; text-decoration: line-through; font-size:12px;"><?php echo $product['price']; ?></span><br /> <span class="main_price2"><?php echo $product['special']; ?></span>
        <?php } ?>
      </span>
      <?php } ?>
      <?php if ($product['rating']) { ?>
      <div class="rating"><img src="catalog/view/theme/default/image/stars-<?php echo $product['rating']; ?>.png" alt="<?php echo $product['reviews']; ?>" /></div>
      <?php } ?>

       <?php if ($options) { ?>
      <div class="options fixed">
        <h2><?php echo $text_option; ?></h2>
        <br />
        <?php foreach ($options as $option) { ?>
        <?php if ($option['type'] == 'select') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <select name="option[<?php echo $option['product_option_id']; ?>]">
            <option value=""><?php echo $text_select; ?></option>
            <?php foreach ($option['option_value'] as $option_value) { ?>
            <option value="<?php echo $option_value['product_option_value_id']; ?>"><?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
            </option>
            <?php } ?>
          </select>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'radio') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <?php foreach ($option['option_value'] as $option_value) { ?>
          <input type="radio" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option_value['product_option_value_id']; ?>" id="option-value-<?php echo $option_value['product_option_value_id']; ?>" />
          <label for="option-value-<?php echo $option_value['product_option_value_id']; ?>"><?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
          </label>
          <br />
          <?php } ?>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'checkbox') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <?php foreach ($option['option_value'] as $option_value) { ?>
          <input type="checkbox" name="option[<?php echo $option['product_option_id']; ?>][]" value="<?php echo $option_value['product_option_value_id']; ?>" id="option-value-<?php echo $option_value['product_option_value_id']; ?>" />
          <label for="option-value-<?php echo $option_value['product_option_value_id']; ?>"> <?php echo $option_value['name']; ?>
            <?php if ($option_value['price']) { ?>
            (<?php echo $option_value['price_prefix']; ?><?php echo $option_value['price']; ?>)
            <?php } ?>
          </label>
          <br />
          <?php } ?>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'text') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'textarea') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <textarea name="option[<?php echo $option['product_option_id']; ?>]" cols="40" rows="5"><?php echo $option['option_value']; ?></textarea>
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'file') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <a id="button-option-<?php echo $option['product_option_id']; ?>" class="button"><span><?php echo $button_upload; ?></span></a>
          <input type="hidden" name="option[<?php echo $option['product_option_id']; ?>]" value="" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'date') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="date" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'datetime') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="datetime" />
        </div>
        <br />
        <?php } ?>
        <?php if ($option['type'] == 'time') { ?>
        <div id="option-<?php echo $option['product_option_id']; ?>" class="option">
          <?php if ($option['required']) { ?>
          <span class="required">*</span>
          <?php } ?>
          <b><?php echo $option['name']; ?>:</b><br />
          <input type="text" name="option[<?php echo $option['product_option_id']; ?>]" value="<?php echo $option['option_value']; ?>" class="time" />
        </div>
        <br />
        <?php } ?>
        <?php } ?>
      </div>
       <?php } ?>
      <div class="cart"><a onclick="addToCart('<?php echo $product['product_id']; ?>');" title="<?php echo $button_cart; ?>"><?php echo $button_cart; ?></a></div>
      <div class="wishlist"><a onclick="addToWishList('<?php echo $product['product_id']; ?>');" title="<?php echo $button_wishlist; ?>"><?php echo $button_wishlist; ?></a></div>
      <div class="compare"><a onclick="addToCompare('<?php echo $product['product_id']; ?>');" title="<?php echo $button_compare; ?>"><?php echo $button_compare; ?></a></div>
    </div>
    </li>
    <?php } ?>
  </ul>
  <div class="pagination"><?php echo $pagination; ?></div>
  <?php } ?>
  <?php if (!$categories && !$products) { ?>
  <div class="content"><?php echo $text_empty; ?></div>
  <div class="buttons">
    <div class="right"><a href="<?php echo $continue; ?>" class="button"><span><?php echo $button_continue; ?></span></a></div>
  </div>
  <?php } ?>
  <?php echo $content_bottom; ?></div>
<script type="text/javascript"><!--
$(document).ready(function(){

    $("a.switch_thumb").toggle(function(){
        $(this).addClass("swap");
        $("ul.display").fadeOut("fast", function() {
            $(this).fadeIn("fast").addClass("thumb_view");
        });
    }, function () {
        $(this).removeClass("swap");
        $("ul.display").fadeOut("fast", function() {
            $(this).fadeIn("fast").removeClass("thumb_view");
        });
    });

});
//--></script> 
<?php echo $footer; ?>
if (isset($options))
{
}