I am using Magento 1.9.3.6 version. I have an attribute called brand. I want to get brand attribute's values collection by filter in order to show it in input text box as autocomplete suggestions.

I have tried the following code:

$attributeId = Mage::getResourceModel("eav/entity_attribute")->getIdByCode("catalog_product","brand"); $attribute = Mage::getModel("catalog/resource_eav_attribute")->load($attributeId); $attributeOptions = $attribute ->getSource()->getAllOptions(); 

I get this output in autocomplete input box:

When I tried like this,

 $attributeOptions = $attribute ->getSource()->getAllOptions()->addAttributeToFilter("value", "brand"); 

it shows error.

Fatal error: Call to a member function addAttributeToFilter() on array in .../CustomController.php on line 52

How to get attribute values as array filter by brand values.