php - Creating select from wordpress dropdown -

i using function below output categories onto form other inputs.

  <?php wp_dropdown_categories();?> 

how able use option selected dropdown , give name can posted along other form items?

<?php wp_dropdown_categories( $args ); ?>  <?php $args = array(     'show_option_all'    => '',     'show_option_none'   => '',     'option_none_value'  => '-1',     'orderby'            => 'id',      'order'              => 'asc',     'show_count'         => 0,     'hide_empty'         => 1,      'child_of'           => 0,     'exclude'            => '',     'echo'               => 1,     'selected'           => 0,     'hierarchical'       => 0,      'name'               => 'cat',     'id'                 => '',     'class'              => 'postform',     'depth'              => 0,     'tab_index'          => 0,     'taxonomy'           => 'category',     'hide_if_empty'      => false,     'value_field'        => 'term_id',   ); ?> 

in arguments there name field can use form.