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'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 = gmdate( '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' ); // phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare $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'] ) { $term = term_exists( $args['category'], 'category' ); if ( $term ) { $join = "INNER JOIN {$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 ( in_array( $args['content'], array( 'post', 'page', 'attachment' ), true ) ) { 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", gmdate( 'Y-m-d', strtotime( $args['start_date'] ) ) ); } if ( $args['end_date'] ) { $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date < %s", gmdate( '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 IDs for the attachments of each post, unless all content is already being exported. if ( ! in_array( $args['content'], array( 'all', 'attachment' ), true ) ) { // Array to hold all additional IDs (attachments and thumbnails). $additional_ids = array(); // Create a copy of the post IDs array to avoid modifying the original array. $processing_ids = $post_ids; while ( $next_posts = array_splice( $processing_ids, 0, 20 ) ) { $posts_in = array_map( 'absint', $next_posts ); $placeholders = array_fill( 0, count( $posts_in ), '%d' ); // Create a string for the placeholders. $in_placeholder = implode( ',', $placeholders ); // Prepare the SQL statement for attachment ids. $attachment_ids = $wpdb->get_col( $wpdb->prepare( " SELECT ID FROM $wpdb->posts WHERE post_parent IN ($in_placeholder) AND post_type = 'attachment' ", $posts_in ) ); $thumbnails_ids = $wpdb->get_col( $wpdb->prepare( " SELECT meta_value FROM $wpdb->postmeta WHERE $wpdb->postmeta.post_id IN ($in_placeholder) AND $wpdb->postmeta.meta_key = '_thumbnail_id' ", $posts_in ) ); $additional_ids = array_merge( $additional_ids, $attachment_ids, $thumbnails_ids ); } // Merge the additional IDs back with the original post IDs after processing all posts $post_ids = array_unique( array_merge( $post_ids, $additional_ids ) ); } /* * Get the requested terms ready, empty unless posts filtered by category * or all content. */ $cats = array(); $tags = array(); $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( array( 'taxonomy' => $custom_taxonomies, 'get' => 'all', ) ); // Put categories in order with no child going before its parent. while ( $cat = array_shift( $categories ) ) { if ( ! $cat->parent || 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 || isset( $terms[ $t->parent ] ) ) { $terms[ $t->term_id ] = $t; } else { $custom_terms[] = $t; } } unset( $categories, $custom_taxonomies, $custom_terms ); } /** * Wraps 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 = '', ']]]]>', $str ) . ']]>'; return $str; } /** * Returns 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 site URL. return get_bloginfo_rss( 'url' ); } } /** * Outputs a cat_name XML tag from a given category object. * * @since 2.1.0 * * @param WP_Term $category Category Object. */ function wxr_cat_name( $category ) { if ( empty( $category->name ) ) { return; } echo '
' . wxr_cdata( $category->name ) . "
\n"; } /** * Outputs a category_description XML tag from a given category object. * * @since 2.1.0 * * @param WP_Term $category Category Object. */ function wxr_category_description( $category ) { if ( empty( $category->description ) ) { return; } echo '
' . wxr_cdata( $category->description ) . "
\n"; } /** * Outputs a tag_name XML tag from a given tag object. * * @since 2.3.0 * * @param WP_Term $tag Tag Object. */ function wxr_tag_name( $tag ) { if ( empty( $tag->name ) ) { return; } echo '
' . wxr_cdata( $tag->name ) . "
\n"; } /** * Outputs a tag_description XML tag from a given tag object. * * @since 2.3.0 * * @param WP_Term $tag Tag Object. */ function wxr_tag_description( $tag ) { if ( empty( $tag->description ) ) { return; } echo '
' . wxr_cdata( $tag->description ) . "
\n"; } /** * Outputs a term_name XML tag from a given term object. * * @since 2.9.0 * * @param WP_Term $term Term Object. */ function wxr_term_name( $term ) { if ( empty( $term->name ) ) { return; } echo '
' . wxr_cdata( $term->name ) . "
\n"; } /** * Outputs a term_description XML tag from a given term object. * * @since 2.9.0 * * @param WP_Term $term Term Object. */ function wxr_term_description( $term ) { if ( empty( $term->description ) ) { return; } echo "\t\t
" . wxr_cdata( $term->description ) . "
\n"; } /** * Outputs term meta XML tags for a given term object. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @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 from 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
\n\t\t\t
%s
\n\t\t\t
%s
\n\t\t
\n", wxr_cdata( $meta->meta_key ), wxr_cdata( $meta->meta_value ) ); } } } /** * Outputs 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
"; echo '
' . (int) $author->ID . '
'; echo '
' . wxr_cdata( $author->user_login ) . '
'; echo '
' . wxr_cdata( $author->user_email ) . '
'; echo '
' . wxr_cdata( $author->display_name ) . '
'; echo '
' . wxr_cdata( $author->first_name ) . '
'; echo '
' . wxr_cdata( $author->last_name ) . '
'; echo "
\n"; } } /** * Outputs 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
"; echo '
' . (int) $menu->term_id . '
'; echo '
nav_menu
'; echo '
' . wxr_cdata( $menu->slug ) . '
'; wxr_term_name( $menu ); echo "
\n"; } } /** * Outputs 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 $term ) { echo "\t\t
taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "
\n"; } } /** * Determines whether to selectively skip post meta used for WXR exports. * * @since 3.3.0 * * @param bool $return_me Whether to skip the current post meta. Default false. * @param string $meta_key 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 '\n"; ?>
term_id; ?>
slug ); ?>
parent ? $cats[ $c->parent ]->slug : '' ); ?>
term_id; ?>
slug ); ?>
term_id; ?>
taxonomy ); ?>
slug ); ?>
parent ? $terms[ $t->parent ]->slug : '' ); ?>
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 (' . implode( ',', $next_posts ) . ')'; $posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" ); // Begin Loop. foreach ( $posts as $post ) { setup_postdata( $post ); /** * Filters the post title used for WXR exports. * * @since 5.7.0 * * @param string $post_title Title of the current post. */ $title = wxr_cdata( apply_filters( 'the_title_export', $post->post_title ) ); /** * Filters the post content used for WXR exports. * * @since 2.5.0 * * @param string $post_content Content of the current post. */ $content = wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) ); /** * Filters the post excerpt used for WXR exports. * * @since 2.6.0 * * @param string $post_excerpt Excerpt for the current post. */ $excerpt = wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) ); $is_sticky = is_sticky( $post->ID ) ? 1 : 0; ?>
ID; ?>
post_date ); ?>
post_date_gmt ); ?>
post_modified ); ?>
post_modified_gmt ); ?>
comment_status ); ?>
ping_status ); ?>
post_name ); ?>
post_status ); ?>
post_parent; ?>
menu_order; ?>
post_type ); ?>
post_password ); ?>
post_type ) : ?>
ID ) ); ?>
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 from 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; } ?>
meta_key ); ?>
meta_value ); ?>
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 ) : ?>
comment_ID; ?>
comment_author ); ?>
comment_author_email ); ?>
comment_author_url ); ?>
comment_author_IP ); ?>
comment_date ); ?>
comment_date_gmt ); ?>
comment_content ); ?>
comment_approved ); ?>
comment_type ); ?>
comment_parent; ?>
user_id; ?>
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 from 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; } ?>
meta_key ); ?>
meta_value ); ?>