Magento: Delete duplicate custom options from product

Today I’ll discuss, how to delete duplicate custom options from product in magento.
First of all make a file on magento root directory and paste below code on that file and after that run this file.

This will delete duplicate custom options from product.

Here is the code:-

<?php
 ini_set("memory_limit","1024M");
 set_time_limit(0);

 
 require 'app/Mage.php';
 Mage::app();
 
 $productobj   = Mage::getModel('catalog/product');
 $productsArr  = $productobj->getCollection()
                 ->addAttributeToSelect('*')->addAttributeToFilter('type_id','configurable')
                 ->getdata();
 
 foreach ($products as $product) {
      
     $productobj->load($product['entity_id']);
      $i= 0;
      foreach ($productobj->getOptions() as $o) {
      
          $optionType =  $o->getType();
        
          if ($optionType == 'drop_down') {
            
          $values      = $o->getValues();
          $title       =  $o->getTitle();
          $product[$i] = $title;
          
          for($j=0;$j<$i;$j++)
          {
            
            if($product[$j]==$product[$i])
            {
             $o->delete();
             echo "DUPLICATE OPTION :". $product[$i]."DELETED";
             echo "<br/>";
            }
            
          }
              
        }
          
        $i++;
     }
     
   }
 
?>