<?php function create_post_your_post () { register_post_type( ' your_post ' , array ( ' labels ' => array ( ' name ' => __( ' Your Post ' ), ), ' public ' => true , ' hierarchical ' => true , ' has_archive ' => true , ' supports ' => array ( ' title ' , ' editor ' , ' excerpt ' , ' thumbnail ' , ), ' taxonomies ' => array ( ' post_tag ' , ' category ' , ) ) ); register_taxonomy_for_object_type( ' category ' , ' your_post ' ); register_taxonomy_for_object_type( ' post_tag ' , ' your_post ' ); } add_action( ' init ' , ' create_post_your_post ' ); function add_your_fields_meta_box () { add_meta_box( ' your_fields_meta_box ' , // $id ' Your Fiel...