Loading issue while fetching values of dropdown attribute in magento - php

Question

There is one attribute named "Model" whose type is drop down. Attribute code is wheel_model.
This drop down have 2585 options.
I have used this drop down on many pages to allow user to select wheel model and filter product list.
Below is the code to fetch drop down value from database:
$arrval = array();
$attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', 'wheel_model');
foreach ($attribute->getSource()->getAllOptions(false) as $option) {
$arrval[$option['value']] = $option['label'];
}
I am getting all drop down values in array and I am using it in phtml as follow:
<select name='wheel_model'>
<option>Select Model</option>
<?php
foreach ($arrval as $value => $label) {
echo "<option value='" . $value . "'>" . $label . "<option>";
}
?>
</select>
Its taking too much time to load drop down values. Is there any way to store this drop down in cache and retrieve from cache whenever required?

Answer 1

Use the code below to store data in the cache and that’s all.
$cacheId = 'my_cache_id';
if (false !== ($data = Mage::app()->getCache()->load($cacheId))) {
$data = unserialize($data);
} else {
$attribute = Mage::getModel('eav/config')->getAttribute('catalog_product', 'wheel_model');
foreach ($attribute->getSource()->getAllOptions(false) as $option) {
$data[$option['value']] = $option['label'];
}
Mage::app()->getCache()->save(serialize($data), $cacheId);
}