Crear custom post

function.php

<?php


if ( ! function_exists('Custom_Post_Type_Receta') ) {

      // Register Custom Post Type
      function Custom_Post_Type_Receta() {

            	$labels = array(
            		'name'                  => _x( 'Recetas', 'Post Type General Name', 'text_domain' ),
            		'singular_name'         => _x( 'Receta', 'Post Type Singular Name', 'text_domain' ),
            		'menu_name'             => __( 'Recetas', 'text_domain' ),
            		'name_admin_bar'        => __( 'Recetas', 'text_domain' ),
            		'archives'              => __( 'Directorio de recetas', 'text_domain' ),
            		'parent_item_colon'     => __( 'Receta Padre', 'text_domain' ),
            		'all_items'             => __( 'Todas las recetas', 'text_domain' ),
            		'add_new_item'          => __( 'Añadir receta', 'text_domain' ),
            		'add_new'               => __( 'Añadir nueva', 'text_domain' ),
            		'new_item'              => __( 'Nueva receta', 'text_domain' ),
            		'edit_item'             => __( 'Editar receta', 'text_domain' ),
            		'update_item'           => __( 'Actualizar receta', 'text_domain' ),
            		'view_item'             => __( 'Ver receta', 'text_domain' ),
            		'search_items'          => __( 'Buscar receta', 'text_domain' ),
            		'not_found'             => __( 'No encontrada', 'text_domain' ),
            		'not_found_in_trash'    => __( 'No encontrada en la papelera', 'text_domain' ),
            		'featured_image'        => __( 'Imagen destacada', 'text_domain' ),
            		'set_featured_image'    => __( 'Definir imagen destacada', 'text_domain' ),
            		'remove_featured_image' => __( 'Borrar imagen destacada', 'text_domain' ),
            		'use_featured_image'    => __( 'Usar como imagen destacada', 'text_domain' ),
            		'insert_into_item'      => __( 'Añadir a la receta', 'text_domain' ),
            		'uploaded_to_this_item' => __( 'Actualizado a la receta', 'text_domain' ),
            		'items_list'            => __( 'Lista de recetas', 'text_domain' ),
            		'items_list_navigation' => __( 'Navegación en la lista de recetas', 'text_domain' ),
            		'filter_items_list'     => __( 'Filtrar lista de recetas', 'text_domain' ),
            	);
            	$args = array(
            		'label'                 => __( 'Receta', 'text_domain' ),
            		'description'           => __( 'Tipo de contenido receta', 'text_domain' ),
            		'labels'                => $labels,
            		'supports'              => array( 'title', 'editor', 'author', 'thumbnail', 'custom-fields', ),
            		'taxonomies'            => array( 'category', 'post_tag' ),
            		'hierarchical'          => false,
            		'public'                => true,
            		'show_ui'               => true,
            		'show_in_menu'          => true,
            		'menu_position'         => 5,
            		'show_in_admin_bar'     => true,
            		'show_in_nav_menus'     => true,
            		'can_export'            => true,
            		'has_archive'           => true,
            		'exclude_from_search'   => false,
            		'publicly_queryable'    => true,
            		'capability_type'       => 'page',
            	);
            	register_post_type( 'receta', $args );

      }
      add_action( 'init', 'Custom_Post_Type_Receta', 0 );

}




function crearReceta($nombre="receta", $mail="no definido", $toquemagico="no definido") {

    	// Create post object
      $my_post = array(
        'post_title'    => $nombre,
        'post_type' 	  => 'receta',
        'post_content'  => '',
        'post_status'   => 'publish',
        'post_author'   => 1 // Obligamos a que el autor sea el súperadministrador
      );

    	$new_post_id = wp_insert_post($my_post); // insertamos la entrada y obtenemos su id


    	update_post_meta($new_post_id, 'nombre', $nombre);
    	update_post_meta($new_post_id, 'mail', $mail);
    	update_post_meta($new_post_id, 'toquemagico', $toquemagico);


    	return($new_post_id);

}