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wp/wp-content/plugins/wp-exporter/export.php

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+<?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 = apply_filters( 'export_post_ids', $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" ), $args );
+
+	/*
+	 * 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() {
+		// Multisite: the base URL.
+		if ( is_multisite() )
+			return network_home_url();
+		// WordPress (single site): the blog URL.
+		else
+			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 array $post_ids Array of post IDs to filter the query by. Optional.
+	 */
+	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 wp-includes/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 wp-includes/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
+}

wp/wp-content/plugins/wp-exporter/index.php

@@ -0,0 +1,208 @@
+<?php
+/**
+	Plugin Name: WordPress Exporter
+	Plugin URI: http://www.ground6.com/wordpress-plugins/wordpress-exporter/
+	Description: Export specific posts, pages, comments, custom fields, categories, tags and more to an export file.
+	Author: zourbuth
+	Version: 0.0.6
+	Author URI: http://zourbuth.com
+	License: Under GPL2
+ 
+	Copyright 2016 zourbuth.com (email: zourbuth@gmail.com)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License, version 2, as 
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+
+/**
+ * Set constant
+ * @since 0.0.5
+ */
+define( 'WP_EXPORTER_VERSION', '0.0.6' );
+define( 'WP_EXPORTER_PATH', plugin_dir_path( __FILE__ ) );
+define( 'WP_EXPORTER_URL', plugin_dir_url( __FILE__ ) );
+define( 'WP_EXPORTER_TEXTDOMAIN', 'wp-exporter' );
+
+
+
+/**
+ * Plugins filters and actions
+ */
+add_action( 'plugins_loaded', 'wp_exporter_plugin_loaded' );
+
+
+/**
+ * Plugins loaded function
+ * 
+ * @since 0.0.1
+ */	
+function wp_exporter_plugin_loaded() {
+	add_action( 'export_filters', 'wordpress_exporter_filters' );		
+	add_action( 'wp_ajax_exportform', 'wordpress_exporter_form_ajax' );
+	add_action( 'wp_exporter_form', 'wordpress_exporter_form' ); // custom action
+	add_action( 'export_wp', 'export_wp_action' );
+	add_filter( 'export_post_ids', 'wp_exporter_post_ids', 1, 2 ); // custom filter	
+	
+	remove_action( 'admin_head', 'export_add_js' );
+    add_action( 'admin_head', 'wordpress_exporter_add_js', 99 );	
+	
+	require_once( WP_EXPORTER_PATH . 'utility.php' );
+}
+
+
+/**
+ * Export posts id function
+ * @param $post_ids (int) current posts ids
+ * @param $args (array) query arguments
+ * @since 0.0.1
+ */	
+function wp_exporter_post_ids( $post_ids, $args ) {
+	
+	if ( 'advanced' == $args['content'] && isset( $_GET['query'] ) ) {
+		$query = esc_attr( $_GET['query'] );
+		if ( isset( $_GET['post_ids'] ) ) {
+			$post_ids = (array) $_GET['post_ids'];
+			$post_ids = apply_filters( 'wp_exporter_post_ids', $post_ids, $query, $args );
+		}
+	}
+	
+	return $post_ids;
+}
+
+
+/**
+ * Export action using custom query
+ * @param $args (array) query arguments
+ * @since 0.0.1
+ */	
+function export_wp_action( $args ) {
+	if ( 'advanced' == $args['content'] ) {
+		require_once( plugin_dir_path( __FILE__ ) . 'export.php' );
+		
+		// Don't use default WP export, instead set parameter for further use
+		global $wp_query;
+		$wp_query->wp_exporter = true; // @since 0.0.5	
+		_export_wp( $args );
+		die();
+	}
+}
+
+
+/**
+ * Export AJAX function
+ * @param (none)
+ * @since 0.0.1
+ */
+function wordpress_exporter_form_ajax() {
+	if ( ! isset( $_POST['nonce'] ) || ! isset( $_POST['query'] ) || ! wp_verify_nonce( $_POST['nonce'], 'wp-exporter' ) )
+		die();
+		
+	do_action( 'wp_exporter_form', esc_attr( $_POST['query'] ) );
+	exit;
+}
+
+
+/**
+ * Lists all posts/pages
+ * @param $query (array) query argument
+ * @since 0.0.1
+ */
+function wordpress_exporter_form( $query ) {
+	$posts = get_posts( array(
+		'posts_per_page' => 9999,
+		'post_type'	=> $query
+	));
+	
+	echo "<label>". __( 'Select one or more posts', 'wp-exporter' ) ."<br />
+		  <select name='post_ids[]' size='8' multiple='multiple'>";
+		foreach( $posts as $post )
+			echo "<option value='{$post->ID}'>{$post->post_title} ({$post->ID})</option>";
+	echo "</select></label>";
+}
+
+
+/**
+ * Lists all posts/pages
+ * @param $query (array) query argument
+ * @since 0.0.1
+ */
+function wordpress_exporter_filters() {
+	// Default queries
+	$defaults = array(
+		''			=> __( '-', 'wp-exporter' ),
+		'post'		=> __( 'Post', 'wp-exporter' ),
+		'page'		=> __( 'Page', 'wp-exporter' ),
+		'attachment'	=> __( 'Media/attachment', 'wp-exporter' ),
+	);
+	
+	// Registered post types 
+	// @since 0.0.6
+	$post_types = array();
+	foreach ( get_post_types( array( '_builtin' => false, 'can_export' => true ), 'objects' ) as $post_type )
+		$post_types[ esc_html( $post_type->name ) ] = esc_attr( $post_type->label );
+	
+	$export_queries = apply_filters( 'wp_exporter_queries', array_merge( $defaults, $post_types ) );
+	?>
+	<p><label><input type="radio" name="content" value="advanced" /> <?php _e( 'Custom Export', 'wp-exporter' ); ?></label></p>
+	<div class="export-filters" id="advanced-filters" style="margin-left: 23px;">
+		<p>
+			<label for="query"><?php _e( 'Select query','wp-exporter' ); ?></label>
+			<select class="smallfat" id="query" name="query" data-nonce="<?php echo wp_create_nonce( 'wp-exporter' ); ?>">
+				<?php foreach ( $export_queries as $key => $query ) { ?>
+					<option value="<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $query ); ?></option>
+				<?php } ?>
+			</select>
+			<span style="display: inline-block; vertical-align: middle;"><span class="spinner"></span></span>
+		</p>
+		<div><!-- custom form starts here --></div>
+	</div>
+	<?php
+}
+
+
+/**
+ * Remove default WordPress export_js and replace with this
+ * copy export_add_js() wp-admin\export.php line 24
+ * @since 0.0.1
+ */
+function wordpress_exporter_add_js() {
+?>
+<script type="text/javascript">
+//<![CDATA[
+	jQuery(document).ready(function($){
+ 		var form = $('#export-filters'),
+ 			filters = form.find('.export-filters');
+ 		filters.hide();
+ 		form.find('input:radio').off('change').change(function() {
+			filters.slideUp('fast');
+			switch ( $(this).val() ) {
+				case 'posts': $('#post-filters').slideDown(); break;
+				case 'pages': $('#page-filters').slideDown(); break;			
+				case 'advanced': $('#advanced-filters').slideDown(); break;
+			}
+ 		});
+		
+		$("#query").on("change", function() {
+			$('#advanced-filters > div').empty();
+			$('#advanced-filters .spinner').css("visibility","visible");
+			$.post( ajaxurl, { action: 'exportform', nonce: $(this).attr("data-nonce"), query : $(this).val() }, function(data){
+				$('#advanced-filters .spinner').css("visibility","hidden");
+				$('#advanced-filters > div').append( data );
+			});
+		});
+	});
+//]]>
+</script>
+<?php
+}

wp/wp-content/plugins/wp-exporter/readme.txt

@@ -0,0 +1,81 @@
+=== WordPress Exporter ===
+Contributors: zourbuth
+Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W6D3WAJTVKAFC
+Tags: export, exporter, import, importer, xml, rss, wxr, posts, pages, media, attachment, comments, custom fields, categories, tags, terms, author
+Requires at least: 3.0
+Tested up to: 4.8
+Stable tag: 0.0.6
+License: GPLv2 or later
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
+
+Export single or multiple posts, pages, comments, custom fields, categories, tags and more to an export file.
+
+== Description ==
+Export a single post or page with its comments, custom fields and terms easily. This plugin will add custom export queries at the WordPress export administration page. Use <a target="_blank" href="http://wordpress.org/plugins/wordpress-importer/">WordPress Importer</a> to import into WordPress site. Ability to create advanced export with custom post queries.
+
+<h3>Key Features & Options</h3>
+<ul>
+	<li>Export single or multiple posts.</li>
+	<li>Export single or multiple pages.</li>
+	<li>Export single or multiple custom post type.</li>
+	<li>Export single or multiple media or attachment.</li>
+	<li>Export comments, custom fields and terms.</li>
+	<li>Export menu at admin bar for each edit page.</li>
+	<li>Export post status option.</li>
+	<li>Custom export query. Read more how to <a href="http://www.ground6.com/wordpress-plugins/wordpress-exporter/creating-custom-export-query/">create custom export query</a>.</li>
+</ul>
+
+To import from a WordPress export file into a WordPress blog, please see the <a href="http://codex.wordpress.org/Importing_Content#WordPress" target="_blank" rel="nofollow">Codex page on Importing Content</a>.
+
+<h3>Supports & Features</h3>
+This plugin does not match to your site style? Is this script not quite working as it should? Having trouble installing? Or need some custom modifications that aren’t already included? Or you want more features on next release? Feel free to get in touch about any of your queries via <a href="http://www.ground6.com/wordpress-plugins/wordpress-exporter/">plugin homepage</a>.
+
+
+== Installation ==
+You can use the built in installer and upgrader, or you can install the plugin manually.
+<ul>
+<li>Go to the menu 'Plugins' -> 'Install' and search for 'WordPress Exporter'</li>
+<li>Click 'install'</li>
+</ul>
+
+To show export menu at admin bar, put this defined constant in wp-config.php or theme functions.php<br />
+<pre>define('WP_EXPORTER_ADMIN_BAR', true);</pre>
+
+To change exported post status (i.e. to draft), put this defined constant in wp-config.php or theme functions.php<br />
+<pre>define('WP_EXPORTER_POST_STATUS', 'draft');</pre><br />
+
+For more post statuses please read this documentation <a href="https://codex.wordpress.org/Post_Status#Default_Statuses">Post Status</a>.
+
+Read more about <a href="https://codex.wordpress.org/Editing_wp-config.php" target="_blank">editing wp-config.php</a>.
+
+
+== Frequently Asked Questions ==
+http://www.ground6.com/wordpress-plugins/wordpress-exporter/supports/
+
+== Screenshots ==
+1. Advanced export interface
+2. Admin bar export menu at edit page
+
+== Changelog ==
+= 0.0.6 =
+- Added custom post types support
+- Added translation for Export admin menu bar
+= 0.0.5 =
+- Updated WXR
+- Added admin bar export menu at edit post/page
+- Added export post status option
+= 0.0.4 =
+- Added media/attachment import
+- Added post id after title
+= 0.0.3 =
+- Fixed spinner
+= 0.0.2 =
+- Created wp_exporter_queries filter hook
+- Created wp_exporter_post_ids filter hook
+- Created wp_exporter_form action hook
+= 0.0.1 =
+- Initial release
+
+
+== Upgrade Notice ==
+Upgrade via WordPress plugins page.

wp/wp-content/plugins/wp-exporter/utility.php

@@ -0,0 +1,132 @@
+<?php
+/*
+    WP Export Utility Class
+	@since 0.0.5
+    
+	Copyright 2017 zourbuth.com (email: zourbuth@gmail.com)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License, version 2, as 
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+class WP_Export_Utility {
+
+
+	/**
+	 * Class constructor
+	 * 
+	 * @since 0.0.5
+	 */
+	function __construct() {
+		add_action( 'admin_bar_menu', array( &$this, 'admin_bar_menu' ) );
+		add_action( 'admin_enqueue_scripts', array( &$this, 'admin_enqueue' ) );
+		add_action( 'the_post', array( &$this, 'the_post' ), 1, 2 );
+	}
+
+
+	/**
+	 * Create admin bar export menu, before user profile menu
+	 * Put define('WP_EXPORTER_ADMIN_BAR', true); in wp-config.php or theme functions.php to enable
+	 * 
+	 * @param $wp_admin_bar (object) WP_Admin_Bar
+	 * @since 0.0.5
+	 */
+	function admin_bar_menu( $wp_admin_bar ) {
+		if ( ! defined( 'WP_EXPORTER_ADMIN_BAR' ) || true !== WP_EXPORTER_ADMIN_BAR )
+			return;
+		
+		global $pagenow;
+
+		if ( ! is_admin() || 'post.php' !== $pagenow || ! defined( 'WP_EXPORTER_ADMIN_BAR' ) )
+			return;
+		
+		$args = array(
+			'id'    	=> 'wp-export',
+			'parent'	=> 'top-secondary',
+			'title' 	=> '<span class="ab-icon dashicons-before dashicons-migrate"></span>'. 
+							__( 'Export', 'wp-exporter' ),
+			'href'  	=> $this->export_url(),
+			'meta'  	=> array( 
+				'class' => 'wp-export',
+				'target' => '_blank',
+			)
+		);
+		$wp_admin_bar->add_node( $args );			
+		return $wp_admin_bar;
+	}
+	
+
+	/**
+	 * Create admin bar export menu, before user profile menu
+	 * 
+	 * @param $wp_admin_bar (object) WP_Admin_Bar
+	 * @since 0.0.5
+	 */
+	public static function export_url() {
+		global $post;
+		
+		$params = array(
+			'download' 		=> 'true',
+			'content' 		=> 'advanced',
+			'content' 		=> 'advanced',
+			'query' 		=> $post->post_type,
+			'post_ids[]' 	=> $post->ID,
+		);
+		
+		return admin_url( "export.php?" ) . http_build_query($params);
+	}
+	
+	
+	/**
+	 * Custom styles for export admin bar menu
+	 * 
+	 * @param $hook (string) current admin file name
+	 * @since 0.0.5
+	 */
+	function admin_enqueue( $hook ) {
+		if ( ! in_array( $hook, array( 'post.php', 'post-new.php' ) ) )
+			return;
+
+		echo '<style type="text/css">
+				#wpadminbar .wp-export :before { line-height: 24px;}
+			</style>';
+	}
+	
+	
+	/**
+	 * Export action using custom query
+	 * Modify post object while 'get_post' inside 'setup_postdata'
+	 * Put define('WP_EXPORTER_POST_STATUS', 'draft'); in wp-config.php or theme functions.php
+	 * 
+	 * @param $post (array) The array of retrieved post.
+	 * @param $wp_query The current Query object (passed by reference).
+	 * @since 0.0.5
+	 */	
+	function the_post( $post, $wp_query ) {	
+		if ( isset( $wp_query->wp_exporter ) && $wp_query->wp_exporter && defined('WP_EXPORTER_POST_STATUS') && isset( $GLOBALS['post'] ) ) {
+			$GLOBALS['post']->post_status = WP_EXPORTER_POST_STATUS;	
+			return $GLOBALS['post'];
+		}
+	}	
+
+} new WP_Export_Utility();
+
+
+/**
+ * Debugging purpose
+ * @params $arr array()
+ * @since 0.0.5
+ */	
+function _wp_exporter_debugr( $arr ) {
+	echo '<pre style="font-size:10px;line-height:10px;">'. print_r( $arr, true ) . '</pre>'; 
+}