File Content: export.php <?php /** * WordPress Export Administration API * * @package WordPress * @subpackage Administration */ /** * Version number for the export format. * * Bump this when something changes that might affect compatibility. * * @since 2.5.0 */ define( 'WXR_VERSION', '1.2' ); /** * Generates the WXR export file for download. * * Default behavior is to export all content, however, note that post content will only * be exported for post types with the `can_export` argument enabled. Any posts with the * 'auto-draft' status will be skipped. * * @since 2.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * @global WP_Post $post Global `$post`. * * @param array $args { * Optional. Arguments for generating the WXR export file for download. Default empty array. * * @type string $content Type of content to export. If set, only the post content of this post type * will be exported. Accepts 'all', 'post', 'page', 'attachment', or a defined * custom post. If an invalid custom post type is supplied, every post type for * which `can_export` is enabled will be exported instead. If a valid custom post * type is supplied but `can_export` is disabled, then 'posts' will be exported * instead. When 'all' is supplied, only post types with `can_export` enabled will * be exported. Default 'all'. * @type string $author Author to export content for. Only used when `$content` is 'post', 'page', or * 'attachment'. Accepts false (all) or a specific author ID. Default false (all). * @type string $category Category (slug) to export content for. Used only when `$content` is 'post'. If * set, only post content assigned to `$category` will be exported. Accepts false * or a specific category slug. Default is false (all categories). * @type string $start_date Start date to export content from. Expected date format is 'Y-m-d'. Used only * when `$content` is 'post', 'page' or 'attachment'. Default false (since the * beginning of time). * @type string $end_date End date to export content to. Expected date format is 'Y-m-d'. Used only when * `$content` is 'post', 'page' or 'attachment'. Default false (latest publish date). * @type string $status Post status to export posts for. Used only when `$content` is 'post' or 'page'. * Accepts false (all statuses except 'auto-draft'), or a specific status, i.e. * 'publish', 'pending', 'draft', 'auto-draft', 'future', 'private', 'inherit', or * 'trash'. Default false (all statuses except 'auto-draft'). * } */ function export_wp( $args = array() ) { global $wpdb, $post; $defaults = array( 'content' => 'all', 'author' => false, 'category' => false, 'start_date' => false, 'end_date' => false, 'status' => false, ); $args = wp_parse_args( $args, $defaults ); /** * Fires at the beginning of an export, before any headers are sent. * * @since 2.3.0 * * @param array $args An array of export arguments. */ do_action( 'export_wp', $args ); $sitename = sanitize_key( get_bloginfo( 'name' ) ); if ( ! empty( $sitename ) ) { $sitename .= '.'; } $date = date( 'Y-m-d' ); $wp_filename = $sitename . 'WordPress.' . $date . '.xml'; /** * Filters the export filename. * * @since 4.4.0 * * @param string $wp_filename The name of the file for download. * @param string $sitename The site name. * @param string $date Today's date, formatted. */ $filename = apply_filters( 'export_wp_filename', $wp_filename, $sitename, $date ); header( 'Content-Description: File Transfer' ); header( 'Content-Disposition: attachment; filename=' . $filename ); header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true ); if ( 'all' != $args['content'] && post_type_exists( $args['content'] ) ) { $ptype = get_post_type_object( $args['content'] ); if ( ! $ptype->can_export ) { $args['content'] = 'post'; } $where = $wpdb->prepare( "{$wpdb->posts}.post_type = %s", $args['content'] ); } else { $post_types = get_post_types( array( 'can_export' => true ) ); $esses = array_fill( 0, count( $post_types ), '%s' ); $where = $wpdb->prepare( "{$wpdb->posts}.post_type IN (" . implode( ',', $esses ) . ')', $post_types ); } if ( $args['status'] && ( 'post' == $args['content'] || 'page' == $args['content'] ) ) { $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_status = %s", $args['status'] ); } else { $where .= " AND {$wpdb->posts}.post_status != 'auto-draft'"; } $join = ''; if ( $args['category'] && 'post' == $args['content'] ) { if ( $term = term_exists( $args['category'], 'category' ) ) { $join = "INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)"; $where .= $wpdb->prepare( " AND {$wpdb->term_relationships}.term_taxonomy_id = %d", $term['term_taxonomy_id'] ); } } if ( 'post' == $args['content'] || 'page' == $args['content'] || 'attachment' == $args['content'] ) { if ( $args['author'] ) { $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $args['author'] ); } if ( $args['start_date'] ) { $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date >= %s", date( 'Y-m-d', strtotime( $args['start_date'] ) ) ); } if ( $args['end_date'] ) { $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date < %s", date( 'Y-m-d', strtotime( '+1 month', strtotime( $args['end_date'] ) ) ) ); } } // Grab a snapshot of post IDs, just in case it changes during the export. $post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" ); /* * Get the requested terms ready, empty unless posts filtered by category * or all content. */ $cats = $tags = $terms = array(); if ( isset( $term ) && $term ) { $cat = get_term( $term['term_id'], 'category' ); $cats = array( $cat->term_id => $cat ); unset( $term, $cat ); } elseif ( 'all' == $args['content'] ) { $categories = (array) get_categories( array( 'get' => 'all' ) ); $tags = (array) get_tags( array( 'get' => 'all' ) ); $custom_taxonomies = get_taxonomies( array( '_builtin' => false ) ); $custom_terms = (array) get_terms( $custom_taxonomies, array( 'get' => 'all' ) ); // Put categories in order with no child going before its parent. while ( $cat = array_shift( $categories ) ) { if ( $cat->parent == 0 || isset( $cats[ $cat->parent ] ) ) { $cats[ $cat->term_id ] = $cat; } else { $categories[] = $cat; } } // Put terms in order with no child going before its parent. while ( $t = array_shift( $custom_terms ) ) { if ( $t->parent == 0 || isset( $terms[ $t->parent ] ) ) { $terms[ $t->term_id ] = $t; } else { $custom_terms[] = $t; } } unset( $categories, $custom_taxonomies, $custom_terms ); } /** * Wrap given string in XML CDATA tag. * * @since 2.1.0 * * @param string $str String to wrap in XML CDATA tag. * @return string */ function wxr_cdata( $str ) { if ( ! seems_utf8( $str ) ) { $str = utf8_encode( $str ); } // $str = ent2ncr(esc_html($str)); $str = '<![CDATA[' . str_replace( ']]>', ']]]]><![CDATA[>', $str ) . ']]>'; return $str; } /** * Return the URL of the site * * @since 2.5.0 * * @return string Site URL. */ function wxr_site_url() { if ( is_multisite() ) { // Multisite: the base URL. return network_home_url(); } else { // WordPress (single site): the blog URL. return get_bloginfo_rss( 'url' ); } } /** * Output a cat_name XML tag from a given category object * * @since 2.1.0 * * @param object $category Category Object */ function wxr_cat_name( $category ) { if ( empty( $category->name ) ) { return; } echo '<wp:cat_name>' . wxr_cdata( $category->name ) . "</wp:cat_name>\n"; } /** * Output a category_description XML tag from a given category object * * @since 2.1.0 * * @param object $category Category Object */ function wxr_category_description( $category ) { if ( empty( $category->description ) ) { return; } echo '<wp:category_description>' . wxr_cdata( $category->description ) . "</wp:category_description>\n"; } /** * Output a tag_name XML tag from a given tag object * * @since 2.3.0 * * @param object $tag Tag Object */ function wxr_tag_name( $tag ) { if ( empty( $tag->name ) ) { return; } echo '<wp:tag_name>' . wxr_cdata( $tag->name ) . "</wp:tag_name>\n"; } /** * Output a tag_description XML tag from a given tag object * * @since 2.3.0 * * @param object $tag Tag Object */ function wxr_tag_description( $tag ) { if ( empty( $tag->description ) ) { return; } echo '<wp:tag_description>' . wxr_cdata( $tag->description ) . "</wp:tag_description>\n"; } /** * Output a term_name XML tag from a given term object * * @since 2.9.0 * * @param object $term Term Object */ function wxr_term_name( $term ) { if ( empty( $term->name ) ) { return; } echo '<wp:term_name>' . wxr_cdata( $term->name ) . "</wp:term_name>\n"; } /** * Output a term_description XML tag from a given term object * * @since 2.9.0 * * @param object $term Term Object */ function wxr_term_description( $term ) { if ( empty( $term->description ) ) { return; } echo "\t\t<wp:term_description>" . wxr_cdata( $term->description ) . "</wp:term_description>\n"; } /** * Output term meta XML tags for a given term object. * * @since 4.6.0 * * @param WP_Term $term Term object. */ function wxr_term_meta( $term ) { global $wpdb; $termmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->termmeta WHERE term_id = %d", $term->term_id ) ); foreach ( $termmeta as $meta ) { /** * Filters whether to selectively skip term meta used for WXR exports. * * Returning a truthy value to the filter will skip the current meta * object from being exported. * * @since 4.6.0 * * @param bool $skip Whether to skip the current piece of term meta. Default false. * @param string $meta_key Current meta key. * @param object $meta Current meta object. */ if ( ! apply_filters( 'wxr_export_skip_termmeta', false, $meta->meta_key, $meta ) ) { printf( "\t\t<wp:termmeta>\n\t\t\t<wp:meta_key>%s</wp:meta_key>\n\t\t\t<wp:meta_value>%s</wp:meta_value>\n\t\t</wp:termmeta>\n", wxr_cdata( $meta->meta_key ), wxr_cdata( $meta->meta_value ) ); } } } /** * Output list of authors with posts * * @since 3.1.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param int[] $post_ids Optional. Array of post IDs to filter the query by. */ function wxr_authors_list( array $post_ids = null ) { global $wpdb; if ( ! empty( $post_ids ) ) { $post_ids = array_map( 'absint', $post_ids ); $and = 'AND ID IN ( ' . implode( ', ', $post_ids ) . ')'; } else { $and = ''; } $authors = array(); $results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft' $and" ); foreach ( (array) $results as $result ) { $authors[] = get_userdata( $result->post_author ); } $authors = array_filter( $authors ); foreach ( $authors as $author ) { echo "\t<wp:author>"; echo '<wp:author_id>' . intval( $author->ID ) . '</wp:author_id>'; echo '<wp:author_login>' . wxr_cdata( $author->user_login ) . '</wp:author_login>'; echo '<wp:author_email>' . wxr_cdata( $author->user_email ) . '</wp:author_email>'; echo '<wp:author_display_name>' . wxr_cdata( $author->display_name ) . '</wp:author_display_name>'; echo '<wp:author_first_name>' . wxr_cdata( $author->first_name ) . '</wp:author_first_name>'; echo '<wp:author_last_name>' . wxr_cdata( $author->last_name ) . '</wp:author_last_name>'; echo "</wp:author>\n"; } } /** * Output all navigation menu terms * * @since 3.1.0 */ function wxr_nav_menu_terms() { $nav_menus = wp_get_nav_menus(); if ( empty( $nav_menus ) || ! is_array( $nav_menus ) ) { return; } foreach ( $nav_menus as $menu ) { echo "\t<wp:term>"; echo '<wp:term_id>' . intval( $menu->term_id ) . '</wp:term_id>'; echo '<wp:term_taxonomy>nav_menu</wp:term_taxonomy>'; echo '<wp:term_slug>' . wxr_cdata( $menu->slug ) . '</wp:term_slug>'; wxr_term_name( $menu ); echo "</wp:term>\n"; } } /** * Output list of taxonomy terms, in XML tag format, associated with a post * * @since 2.3.0 */ function wxr_post_taxonomy() { $post = get_post(); $taxonomies = get_object_taxonomies( $post->post_type ); if ( empty( $taxonomies ) ) { return; } $terms = wp_get_object_terms( $post->ID, $taxonomies ); foreach ( (array) $terms as $term ) { echo "\t\t<category domain=\"{$term->taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "</category>\n"; } } /** * @param bool $return_me * @param string $meta_key * @return bool */ function wxr_filter_postmeta( $return_me, $meta_key ) { if ( '_edit_lock' == $meta_key ) { $return_me = true; } return $return_me; } add_filter( 'wxr_export_skip_postmeta', 'wxr_filter_postmeta', 10, 2 ); echo '<?xml version="1.0" encoding="' . get_bloginfo( 'charset' ) . "\" ?>\n"; ?> <!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. --> <!-- It contains information about your site's posts, pages, comments, categories, and other content. --> <!-- You may use this file to transfer that content from one site to another. --> <!-- This file is not intended to serve as a complete backup of your site. --> <!-- To import this information into a WordPress site follow these steps: --> <!-- 1. Log in to that site as an administrator. --> <!-- 2. Go to Tools: Import in the WordPress admin panel. --> <!-- 3. Install the "WordPress" importer from the list. --> <!-- 4. Activate & Run Importer. --> <!-- 5. Upload this file using the form provided on that page. --> <!-- 6. You will first be asked to map the authors in this export file to users --> <!-- on the site. For each author, you may choose to map to an --> <!-- existing user on the site or to create a new user. --> <!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. --> <!-- contained in this file into your site. --> <?php the_generator( 'export' ); ?> <rss version="2.0" xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/" > <channel> <title><?php bloginfo_rss( 'name' ); ?></title> <link><?php bloginfo_rss( 'url' ); ?></link> <description><?php bloginfo_rss( 'description' ); ?></description> <pubDate><?php echo date( 'D, d M Y H:i:s +0000' ); ?></pubDate> <language><?php bloginfo_rss( 'language' ); ?></language> <wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version> <wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url> <wp:base_blog_url><?php bloginfo_rss( 'url' ); ?></wp:base_blog_url> <?php wxr_authors_list( $post_ids ); ?> <?php foreach ( $cats as $c ) : ?> <wp:category> <wp:term_id><?php echo intval( $c->term_id ); ?></wp:term_id> <wp:category_nicename><?php echo wxr_cdata( $c->slug ); ?></wp:category_nicename> <wp:category_parent><?php echo wxr_cdata( $c->parent ? $cats[ $c->parent ]->slug : '' ); ?></wp:category_parent> <?php wxr_cat_name( $c ); wxr_category_description( $c ); wxr_term_meta( $c ); ?> </wp:category> <?php endforeach; ?> <?php foreach ( $tags as $t ) : ?> <wp:tag> <wp:term_id><?php echo intval( $t->term_id ); ?></wp:term_id> <wp:tag_slug><?php echo wxr_cdata( $t->slug ); ?></wp:tag_slug> <?php wxr_tag_name( $t ); wxr_tag_description( $t ); wxr_term_meta( $t ); ?> </wp:tag> <?php endforeach; ?> <?php foreach ( $terms as $t ) : ?> <wp:term> <wp:term_id><?php echo wxr_cdata( $t->term_id ); ?></wp:term_id> <wp:term_taxonomy><?php echo wxr_cdata( $t->taxonomy ); ?></wp:term_taxonomy> <wp:term_slug><?php echo wxr_cdata( $t->slug ); ?></wp:term_slug> <wp:term_parent><?php echo wxr_cdata( $t->parent ? $terms[ $t->parent ]->slug : '' ); ?></wp:term_parent> <?php wxr_term_name( $t ); wxr_term_description( $t ); wxr_term_meta( $t ); ?> </wp:term> <?php endforeach; ?> <?php if ( 'all' == $args['content'] ) { wxr_nav_menu_terms();} ?> <?php /** This action is documented in site-inc/feed-rss2.php */ do_action( 'rss2_head' ); ?> <?php if ( $post_ids ) { /** * @global WP_Query $wp_query */ global $wp_query; // Fake being in the loop. $wp_query->in_the_loop = true; // Fetch 20 posts at a time rather than loading the entire table into memory. while ( $next_posts = array_splice( $post_ids, 0, 20 ) ) { $where = 'WHERE ID IN (' . join( ',', $next_posts ) . ')'; $posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" ); // Begin Loop. foreach ( $posts as $post ) { setup_postdata( $post ); $is_sticky = is_sticky( $post->ID ) ? 1 : 0; ?> <item> <title> <?php /** This filter is documented in site-inc/feed.php */ echo apply_filters( 'the_title_rss', $post->post_title ); ?> </title> <link><?php the_permalink_rss(); ?></link> <pubDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_post_time( 'Y-m-d H:i:s', true ), false ); ?></pubDate> <dc:creator><?php echo wxr_cdata( get_the_author_meta( 'login' ) ); ?></dc:creator> <guid isPermaLink="false"><?php the_guid(); ?></guid> <description></description> <content:encoded> <?php /** * Filters the post content used for WXR exports. * * @since 2.5.0 * * @param string $post_content Content of the current post. */ echo wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) ); ?> </content:encoded> <excerpt:encoded> <?php /** * Filters the post excerpt used for WXR exports. * * @since 2.6.0 * * @param string $post_excerpt Excerpt for the current post. */ echo wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) ); ?> </excerpt:encoded> <wp:post_id><?php echo intval( $post->ID ); ?></wp:post_id> <wp:post_date><?php echo wxr_cdata( $post->post_date ); ?></wp:post_date> <wp:post_date_gmt><?php echo wxr_cdata( $post->post_date_gmt ); ?></wp:post_date_gmt> <wp:comment_status><?php echo wxr_cdata( $post->comment_status ); ?></wp:comment_status> <wp:ping_status><?php echo wxr_cdata( $post->ping_status ); ?></wp:ping_status> <wp:post_name><?php echo wxr_cdata( $post->post_name ); ?></wp:post_name> <wp:status><?php echo wxr_cdata( $post->post_status ); ?></wp:status> <wp:post_parent><?php echo intval( $post->post_parent ); ?></wp:post_parent> <wp:menu_order><?php echo intval( $post->menu_order ); ?></wp:menu_order> <wp:post_type><?php echo wxr_cdata( $post->post_type ); ?></wp:post_type> <wp:post_password><?php echo wxr_cdata( $post->post_password ); ?></wp:post_password> <wp:is_sticky><?php echo intval( $is_sticky ); ?></wp:is_sticky> <?php if ( $post->post_type == 'attachment' ) : ?> <wp:attachment_url><?php echo wxr_cdata( wp_get_attachment_url( $post->ID ) ); ?></wp:attachment_url> <?php endif; ?> <?php wxr_post_taxonomy(); ?> <?php $postmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID ) ); foreach ( $postmeta as $meta ) : /** * Filters whether to selectively skip post meta used for WXR exports. * * Returning a truthy value to the filter will skip the current meta * object from being exported. * * @since 3.3.0 * * @param bool $skip Whether to skip the current post meta. Default false. * @param string $meta_key Current meta key. * @param object $meta Current meta object. */ if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) ) { continue; } ?> <wp:postmeta> <wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key> <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value> </wp:postmeta> <?php endforeach; $_comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) ); $comments = array_map( 'get_comment', $_comments ); foreach ( $comments as $c ) : ?> <wp:comment> <wp:comment_id><?php echo intval( $c->comment_ID ); ?></wp:comment_id> <wp:comment_author><?php echo wxr_cdata( $c->comment_author ); ?></wp:comment_author> <wp:comment_author_email><?php echo wxr_cdata( $c->comment_author_email ); ?></wp:comment_author_email> <wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url> <wp:comment_author_IP><?php echo wxr_cdata( $c->comment_author_IP ); ?></wp:comment_author_IP> <wp:comment_date><?php echo wxr_cdata( $c->comment_date ); ?></wp:comment_date> <wp:comment_date_gmt><?php echo wxr_cdata( $c->comment_date_gmt ); ?></wp:comment_date_gmt> <wp:comment_content><?php echo wxr_cdata( $c->comment_content ); ?></wp:comment_content> <wp:comment_approved><?php echo wxr_cdata( $c->comment_approved ); ?></wp:comment_approved> <wp:comment_type><?php echo wxr_cdata( $c->comment_type ); ?></wp:comment_type> <wp:comment_parent><?php echo intval( $c->comment_parent ); ?></wp:comment_parent> <wp:comment_user_id><?php echo intval( $c->user_id ); ?></wp:comment_user_id> <?php $c_meta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->commentmeta WHERE comment_id = %d", $c->comment_ID ) ); foreach ( $c_meta as $meta ) : /** * Filters whether to selectively skip comment meta used for WXR exports. * * Returning a truthy value to the filter will skip the current meta * object from being exported. * * @since 4.0.0 * * @param bool $skip Whether to skip the current comment meta. Default false. * @param string $meta_key Current meta key. * @param object $meta Current meta object. */ if ( apply_filters( 'wxr_export_skip_commentmeta', false, $meta->meta_key, $meta ) ) { continue; } ?> <wp:commentmeta> <wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key> <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value> </wp:commentmeta> <?php endforeach; ?> </wp:comment> <?php endforeach; ?> </item> <?php } } } ?> </channel> </rss> <?php } Submit