how to set code for date

Hi all, i'm new learner for cake.php

i'm trying to import my excel-CSV data to ms sql database thro the controller.php

but one of my data in excel-CSV which is DATE display in this format (Mon, 21 May 2014)

how to convert this format (Mon, 21 May 2014) to 21-05-2014 by ignore the mon?

thank you and appreciate for your comment.

     while(! feof($file))

          {

       $curDataRow = fgetcsv($file);

       $i = 0;

        foreach($fields as $key => $field_name)

         {

          if(strtolower($field_name) == 'date')

          {

            $date = $curDataRow[$i];

                                                                                                             

              $date ['Upload'][$field_name] =('\m\o\n,', 'd-m-Y', $date);

             $this->request->data['Upload'][$field_name] = date('Y-m-d', strtotime($date));

}

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