PHP to export Magento Attributes

export-attributes.php

<?php
chdir(dirname(__FILE__));
require_once 'app/Mage.php';
Mage::app();
umask(0);
$productModel = Mage::getModel('Mage_Catalog_Model_Product');
$categoryModel = Mage::getModel('Mage_Catalog_Model_Category');
$resource = Mage::getModel('core/resource');
$db = $resource->getConnection('core_write');
$attributes = Mage::getSingleton('eav/config')
->getEntityType(Mage_Catalog_Model_Product::ENTITY)->getAttributeCollection();
foreach($attributes as $attribute) {
    #if(!$attribute->getIsUserDefined()) continue;
    if($attribute->getEntityTypeId() != 4) continue;
    if($attribute->getFrontendInput() != 'select' && $attribute->getFrontendInput() != 'multiselect') continue;
    echo $attribute->getFrontendLabel(). ' (' . $attribute->getAttributeCode() . ')' . ",";
    echo '"';
    foreach ($attribute->getSource()->getAllOptions(false) as $option) {
        if(empty($option['label'])) continue;
        echo $option['label'].',';
    }
    echo '"'."\r\n";
}
?>