My WP blog Rewrite Code

rewrite_code.php

<?php 
function my_custom_pt_link( $post_link, $id = 0 ){
    $post = get_post($id);  
    if ( is_object( $post ) ){
        $terms = wp_get_object_terms( $post->ID, ‘abc );
        if( $terms ){
            return str_replace( ‘%abc%’ , $terms[0]->slug , $post_link );
        } else {
            return str_replace( ‘%abc%’ , 'misc' , $post_link );
        }
    }
    return $post_link;  
}
add_filter( 'post_type_link', 'my_custom_pt_link', 1, 3 );