How to upload and read csv file in magento

To upload CSV file and to read that file line by line , Please write the below code in magento



if(isset($_FILES['import_file']['name']) && $_FILES['import_file']['name'] != '')

{

    $uploaderFile = new Varien_File_Uploader('import_file');

    $uploaderFile->setAllowedExtensions(array());

    $uploaderFile->setAllowRenameFiles(false);

    $uploaderFile->setFilesDispersion(false);

    $uploaderFilepath = Mage::getBaseDir('media') . DS . 'importcsv' . DS ;

    $uploaderFile->save($uploaderFilepath, $_FILES['import_file']['name'] );

    $file = $_FILES['import_file']['name'];

    $filepath = $uploaderFilepath.$file;

    $i = 0;

    if(($handle = fopen("$filepath", "r")) !== FALSE) {

        while(($data = fgetcsv($handle, 1000, ",")) !== FALSE){            

            if($i>0 && count($data)>1){

                updateData($data);

            }          

            $i++;

        }

    }

    else{

        Mage::getSingleton('adminhtml/session')->addError("There is some Error");

        $this->_redirect('*/*/index');

    }

}

    function updateData($data)

    {

        //Write your code here and Update it to magento tables

    }