Magento add attribute to customer

Below code will insert your custom customer attribute in Magento system. You can even specify whil creating the attribute whether that attribute should appear in the forms (like register/signup) or not.

$installer = $this;

$setup = new Mage_Eav_Model_Entity_Setup('core_setup');

$entityTypeId     = $setup->getEntityTypeId('customer');
$attributeSetId   = $setup->getDefaultAttributeSetId($entityTypeId);
$attributeGroupId = $setup->getDefaultAttributeGroupId($entityTypeId, $attributeSetId);

$setup->addAttribute('customer', 'your_attribute_code_here', array(
    'input'         => 'text', //or select or whatever you like
    'type'          => 'int', //or varchar or anything you want it
    'label'         => 'Attribute description goes here',
    'visible'       => 1,
    'required'      => 0, //mandatory? then 1
    'user_defined' => 1,


$oAttribute = Mage::getSingleton('eav/config')->getAttribute('customer', 'your_attribute_code_here');
$oAttribute->setData('used_in_forms', array('adminhtml_customer')); 


Here we have used our custom attribute’s:
– input type as text, but you can have it anything you like to appear in the form. It can be textarea, date, select or anything you want.
– data type as int, but you can have it anything from text, datetime, varchar or decimal. Remember customer is EAV in Magento, so it needs this information to store all the future values of this attribute in customer_entity_int (customer_entity_*) table.

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