Magento export tier price

Below is the code to Magento export tier price of all product to csv

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//Magento export tier price of all product to csv require_once 'app/Mage.php'; umask(0); Mage::app('default');   header("Content-type:text/octect-stream"); header("Content-Disposition:attachment;filename=data.csv");   $tableName = Mage::getSingleton('core/resource')          ->getTableName('catalog_product_entity_tier_price');  $storeId    = Mage::app()->getStore()->getId();  $product    = Mage::getModel('catalog/product');  $products   = $product->getCollection()->addStoreFilter($storeId)->getAllIds();     $fieldname = array("store","websites","attribute_set","type","sku","name","tier_price_website","tier_price_customer_group","tier_price_qty","tier_price_price");  print stripslashes(implode(',',$fieldname)) . "\n";  foreach($products as $productid)  {    $existingTierPrice = $product ->load($productid)->tier_price;   $sku = $product->getSku();   $name = $product->getName();   foreach($existingTierPrice as $key=>$value)    {      $tierarray = array("admin","base","Default","simple",$sku,$name,"all","all",$value['price_qty'],$value['price']);    print stripslashes(implode(',',$tierarray)) . "\n";    }   }