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   1  <?php
   2  /**
   3   * WordPress Export Administration API
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /**
  10   * Version number for the export format.
  11   *
  12   * Bump this when something changes that might affect compatibility.
  13   *
  14   * @since 2.5.0
  15   */
  16  define( 'WXR_VERSION', '1.2' );
  17  
  18  /**
  19   * Generates the WXR export file for download.
  20   *
  21   * Default behavior is to export all content, however, note that post content will only
  22   * be exported for post types with the `can_export` argument enabled. Any posts with the
  23   * 'auto-draft' status will be skipped.
  24   *
  25   * @since 2.1.0
  26   * @since 5.7.0 Added the `post_modified` and `post_modified_gmt` fields to the export file.
  27   *
  28   * @global wpdb    $wpdb WordPress database abstraction object.
  29   * @global WP_Post $post Global post object.
  30   *
  31   * @param array $args {
  32   *     Optional. Arguments for generating the WXR export file for download. Default empty array.
  33   *
  34   *     @type string $content        Type of content to export. If set, only the post content of this post type
  35   *                                  will be exported. Accepts 'all', 'post', 'page', 'attachment', or a defined
  36   *                                  custom post. If an invalid custom post type is supplied, every post type for
  37   *                                  which `can_export` is enabled will be exported instead. If a valid custom post
  38   *                                  type is supplied but `can_export` is disabled, then 'posts' will be exported
  39   *                                  instead. When 'all' is supplied, only post types with `can_export` enabled will
  40   *                                  be exported. Default 'all'.
  41   *     @type string $author         Author to export content for. Only used when `$content` is 'post', 'page', or
  42   *                                  'attachment'. Accepts false (all) or a specific author ID. Default false (all).
  43   *     @type string $category       Category (slug) to export content for. Used only when `$content` is 'post'. If
  44   *                                  set, only post content assigned to `$category` will be exported. Accepts false
  45   *                                  or a specific category slug. Default is false (all categories).
  46   *     @type string $start_date     Start date to export content from. Expected date format is 'Y-m-d'. Used only
  47   *                                  when `$content` is 'post', 'page' or 'attachment'. Default false (since the
  48   *                                  beginning of time).
  49   *     @type string $end_date       End date to export content to. Expected date format is 'Y-m-d'. Used only when
  50   *                                  `$content` is 'post', 'page' or 'attachment'. Default false (latest publish date).
  51   *     @type string $status         Post status to export posts for. Used only when `$content` is 'post' or 'page'.
  52   *                                  Accepts false (all statuses except 'auto-draft'), or a specific status, i.e.
  53   *                                  'publish', 'pending', 'draft', 'auto-draft', 'future', 'private', 'inherit', or
  54   *                                  'trash'. Default false (all statuses except 'auto-draft').
  55   * }
  56   */
  57  function export_wp( $args = array() ) {
  58      global $wpdb, $post;
  59  
  60      $defaults = array(
  61          'content'    => 'all',
  62          'author'     => false,
  63          'category'   => false,
  64          'start_date' => false,
  65          'end_date'   => false,
  66          'status'     => false,
  67      );
  68      $args     = wp_parse_args( $args, $defaults );
  69  
  70      /**
  71       * Fires at the beginning of an export, before any headers are sent.
  72       *
  73       * @since 2.3.0
  74       *
  75       * @param array $args An array of export arguments.
  76       */
  77      do_action( 'export_wp', $args );
  78  
  79      $sitename = sanitize_key( get_bloginfo( 'name' ) );
  80      if ( ! empty( $sitename ) ) {
  81          $sitename .= '.';
  82      }
  83      $date        = gmdate( 'Y-m-d' );
  84      $wp_filename = $sitename . 'WordPress.' . $date . '.xml';
  85      /**
  86       * Filters the export filename.
  87       *
  88       * @since 4.4.0
  89       *
  90       * @param string $wp_filename The name of the file for download.
  91       * @param string $sitename    The site name.
  92       * @param string $date        Today's date, formatted.
  93       */
  94      $filename = apply_filters( 'export_wp_filename', $wp_filename, $sitename, $date );
  95  
  96      header( 'Content-Description: File Transfer' );
  97      header( 'Content-Disposition: attachment; filename=' . $filename );
  98      header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true );
  99  
 100      if ( 'all' !== $args['content'] && post_type_exists( $args['content'] ) ) {
 101          $ptype = get_post_type_object( $args['content'] );
 102          if ( ! $ptype->can_export ) {
 103              $args['content'] = 'post';
 104          }
 105  
 106          $where = $wpdb->prepare( "{$wpdb->posts}.post_type = %s", $args['content'] );
 107      } else {
 108          $post_types = get_post_types( array( 'can_export' => true ) );
 109          $esses      = array_fill( 0, count( $post_types ), '%s' );
 110  
 111          // phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
 112          $where = $wpdb->prepare( "{$wpdb->posts}.post_type IN (" . implode( ',', $esses ) . ')', $post_types );
 113      }
 114  
 115      if ( $args['status'] && ( 'post' === $args['content'] || 'page' === $args['content'] ) ) {
 116          $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_status = %s", $args['status'] );
 117      } else {
 118          $where .= " AND {$wpdb->posts}.post_status != 'auto-draft'";
 119      }
 120  
 121      $join = '';
 122      if ( $args['category'] && 'post' === $args['content'] ) {
 123          $term = term_exists( $args['category'], 'category' );
 124          if ( $term ) {
 125              $join   = "INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)";
 126              $where .= $wpdb->prepare( " AND {$wpdb->term_relationships}.term_taxonomy_id = %d", $term['term_taxonomy_id'] );
 127          }
 128      }
 129  
 130      if ( in_array( $args['content'], array( 'post', 'page', 'attachment' ), true ) ) {
 131          if ( $args['author'] ) {
 132              $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $args['author'] );
 133          }
 134  
 135          if ( $args['start_date'] ) {
 136              $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date >= %s", gmdate( 'Y-m-d', strtotime( $args['start_date'] ) ) );
 137          }
 138  
 139          if ( $args['end_date'] ) {
 140              $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date < %s", gmdate( 'Y-m-d', strtotime( '+1 month', strtotime( $args['end_date'] ) ) ) );
 141          }
 142      }
 143  
 144      // Grab a snapshot of post IDs, just in case it changes during the export.
 145      $post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" );
 146  
 147      /*
 148       * Get the requested terms ready, empty unless posts filtered by category
 149       * or all content.
 150       */
 151      $cats  = array();
 152      $tags  = array();
 153      $terms = array();
 154      if ( isset( $term ) && $term ) {
 155          $cat  = get_term( $term['term_id'], 'category' );
 156          $cats = array( $cat->term_id => $cat );
 157          unset( $term, $cat );
 158      } elseif ( 'all' === $args['content'] ) {
 159          $categories = (array) get_categories( array( 'get' => 'all' ) );
 160          $tags       = (array) get_tags( array( 'get' => 'all' ) );
 161  
 162          $custom_taxonomies = get_taxonomies( array( '_builtin' => false ) );
 163          $custom_terms      = (array) get_terms(
 164              array(
 165                  'taxonomy' => $custom_taxonomies,
 166                  'get'      => 'all',
 167              )
 168          );
 169  
 170          // Put categories in order with no child going before its parent.
 171          while ( $cat = array_shift( $categories ) ) {
 172              if ( ! $cat->parent || isset( $cats[ $cat->parent ] ) ) {
 173                  $cats[ $cat->term_id ] = $cat;
 174              } else {
 175                  $categories[] = $cat;
 176              }
 177          }
 178  
 179          // Put terms in order with no child going before its parent.
 180          while ( $t = array_shift( $custom_terms ) ) {
 181              if ( ! $t->parent || isset( $terms[ $t->parent ] ) ) {
 182                  $terms[ $t->term_id ] = $t;
 183              } else {
 184                  $custom_terms[] = $t;
 185              }
 186          }
 187  
 188          unset( $categories, $custom_taxonomies, $custom_terms );
 189      }
 190  
 191      /**
 192       * Wrap given string in XML CDATA tag.
 193       *
 194       * @since 2.1.0
 195       *
 196       * @param string $str String to wrap in XML CDATA tag.
 197       * @return string
 198       */
 199  	function wxr_cdata( $str ) {
 200          if ( ! seems_utf8( $str ) ) {
 201              $str = utf8_encode( $str );
 202          }
 203          // $str = ent2ncr(esc_html($str));
 204          $str = '<![CDATA[' . str_replace( ']]>', ']]]]><![CDATA[>', $str ) . ']]>';
 205  
 206          return $str;
 207      }
 208  
 209      /**
 210       * Return the URL of the site
 211       *
 212       * @since 2.5.0
 213       *
 214       * @return string Site URL.
 215       */
 216  	function wxr_site_url() {
 217          if ( is_multisite() ) {
 218              // Multisite: the base URL.
 219              return network_home_url();
 220          } else {
 221              // WordPress (single site): the blog URL.
 222              return get_bloginfo_rss( 'url' );
 223          }
 224      }
 225  
 226      /**
 227       * Output a cat_name XML tag from a given category object
 228       *
 229       * @since 2.1.0
 230       *
 231       * @param WP_Term $category Category Object
 232       */
 233  	function wxr_cat_name( $category ) {
 234          if ( empty( $category->name ) ) {
 235              return;
 236          }
 237  
 238          echo '<wp:cat_name>' . wxr_cdata( $category->name ) . "</wp:cat_name>\n";
 239      }
 240  
 241      /**
 242       * Output a category_description XML tag from a given category object
 243       *
 244       * @since 2.1.0
 245       *
 246       * @param WP_Term $category Category Object
 247       */
 248  	function wxr_category_description( $category ) {
 249          if ( empty( $category->description ) ) {
 250              return;
 251          }
 252  
 253          echo '<wp:category_description>' . wxr_cdata( $category->description ) . "</wp:category_description>\n";
 254      }
 255  
 256      /**
 257       * Output a tag_name XML tag from a given tag object
 258       *
 259       * @since 2.3.0
 260       *
 261       * @param WP_Term $tag Tag Object
 262       */
 263  	function wxr_tag_name( $tag ) {
 264          if ( empty( $tag->name ) ) {
 265              return;
 266          }
 267  
 268          echo '<wp:tag_name>' . wxr_cdata( $tag->name ) . "</wp:tag_name>\n";
 269      }
 270  
 271      /**
 272       * Output a tag_description XML tag from a given tag object
 273       *
 274       * @since 2.3.0
 275       *
 276       * @param WP_Term $tag Tag Object
 277       */
 278  	function wxr_tag_description( $tag ) {
 279          if ( empty( $tag->description ) ) {
 280              return;
 281          }
 282  
 283          echo '<wp:tag_description>' . wxr_cdata( $tag->description ) . "</wp:tag_description>\n";
 284      }
 285  
 286      /**
 287       * Output a term_name XML tag from a given term object
 288       *
 289       * @since 2.9.0
 290       *
 291       * @param WP_Term $term Term Object
 292       */
 293  	function wxr_term_name( $term ) {
 294          if ( empty( $term->name ) ) {
 295              return;
 296          }
 297  
 298          echo '<wp:term_name>' . wxr_cdata( $term->name ) . "</wp:term_name>\n";
 299      }
 300  
 301      /**
 302       * Output a term_description XML tag from a given term object
 303       *
 304       * @since 2.9.0
 305       *
 306       * @param WP_Term $term Term Object
 307       */
 308  	function wxr_term_description( $term ) {
 309          if ( empty( $term->description ) ) {
 310              return;
 311          }
 312  
 313          echo "\t\t<wp:term_description>" . wxr_cdata( $term->description ) . "</wp:term_description>\n";
 314      }
 315  
 316      /**
 317       * Output term meta XML tags for a given term object.
 318       *
 319       * @since 4.6.0
 320       *
 321       * @param WP_Term $term Term object.
 322       */
 323  	function wxr_term_meta( $term ) {
 324          global $wpdb;
 325  
 326          $termmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->termmeta WHERE term_id = %d", $term->term_id ) );
 327  
 328          foreach ( $termmeta as $meta ) {
 329              /**
 330               * Filters whether to selectively skip term meta used for WXR exports.
 331               *
 332               * Returning a truthy value from the filter will skip the current meta
 333               * object from being exported.
 334               *
 335               * @since 4.6.0
 336               *
 337               * @param bool   $skip     Whether to skip the current piece of term meta. Default false.
 338               * @param string $meta_key Current meta key.
 339               * @param object $meta     Current meta object.
 340               */
 341              if ( ! apply_filters( 'wxr_export_skip_termmeta', false, $meta->meta_key, $meta ) ) {
 342                  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 ) );
 343              }
 344          }
 345      }
 346  
 347      /**
 348       * Output list of authors with posts
 349       *
 350       * @since 3.1.0
 351       *
 352       * @global wpdb $wpdb WordPress database abstraction object.
 353       *
 354       * @param int[] $post_ids Optional. Array of post IDs to filter the query by.
 355       */
 356  	function wxr_authors_list( array $post_ids = null ) {
 357          global $wpdb;
 358  
 359          if ( ! empty( $post_ids ) ) {
 360              $post_ids = array_map( 'absint', $post_ids );
 361              $and      = 'AND ID IN ( ' . implode( ', ', $post_ids ) . ')';
 362          } else {
 363              $and = '';
 364          }
 365  
 366          $authors = array();
 367          $results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft' $and" );
 368          foreach ( (array) $results as $result ) {
 369              $authors[] = get_userdata( $result->post_author );
 370          }
 371  
 372          $authors = array_filter( $authors );
 373  
 374          foreach ( $authors as $author ) {
 375              echo "\t<wp:author>";
 376              echo '<wp:author_id>' . (int) $author->ID . '</wp:author_id>';
 377              echo '<wp:author_login>' . wxr_cdata( $author->user_login ) . '</wp:author_login>';
 378              echo '<wp:author_email>' . wxr_cdata( $author->user_email ) . '</wp:author_email>';
 379              echo '<wp:author_display_name>' . wxr_cdata( $author->display_name ) . '</wp:author_display_name>';
 380              echo '<wp:author_first_name>' . wxr_cdata( $author->first_name ) . '</wp:author_first_name>';
 381              echo '<wp:author_last_name>' . wxr_cdata( $author->last_name ) . '</wp:author_last_name>';
 382              echo "</wp:author>\n";
 383          }
 384      }
 385  
 386      /**
 387       * Output all navigation menu terms
 388       *
 389       * @since 3.1.0
 390       */
 391  	function wxr_nav_menu_terms() {
 392          $nav_menus = wp_get_nav_menus();
 393          if ( empty( $nav_menus ) || ! is_array( $nav_menus ) ) {
 394              return;
 395          }
 396  
 397          foreach ( $nav_menus as $menu ) {
 398              echo "\t<wp:term>";
 399              echo '<wp:term_id>' . (int) $menu->term_id . '</wp:term_id>';
 400              echo '<wp:term_taxonomy>nav_menu</wp:term_taxonomy>';
 401              echo '<wp:term_slug>' . wxr_cdata( $menu->slug ) . '</wp:term_slug>';
 402              wxr_term_name( $menu );
 403              echo "</wp:term>\n";
 404          }
 405      }
 406  
 407      /**
 408       * Output list of taxonomy terms, in XML tag format, associated with a post
 409       *
 410       * @since 2.3.0
 411       */
 412  	function wxr_post_taxonomy() {
 413          $post = get_post();
 414  
 415          $taxonomies = get_object_taxonomies( $post->post_type );
 416          if ( empty( $taxonomies ) ) {
 417              return;
 418          }
 419          $terms = wp_get_object_terms( $post->ID, $taxonomies );
 420  
 421          foreach ( (array) $terms as $term ) {
 422              echo "\t\t<category domain=\"{$term->taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "</category>\n";
 423          }
 424      }
 425  
 426      /**
 427       * @param bool   $return_me
 428       * @param string $meta_key
 429       * @return bool
 430       */
 431  	function wxr_filter_postmeta( $return_me, $meta_key ) {
 432          if ( '_edit_lock' === $meta_key ) {
 433              $return_me = true;
 434          }
 435          return $return_me;
 436      }
 437      add_filter( 'wxr_export_skip_postmeta', 'wxr_filter_postmeta', 10, 2 );
 438  
 439      echo '<?xml version="1.0" encoding="' . get_bloginfo( 'charset' ) . "\" ?>\n";
 440  
 441      ?>
 442  <!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. -->
 443  <!-- It contains information about your site's posts, pages, comments, categories, and other content. -->
 444  <!-- You may use this file to transfer that content from one site to another. -->
 445  <!-- This file is not intended to serve as a complete backup of your site. -->
 446  
 447  <!-- To import this information into a WordPress site follow these steps: -->
 448  <!-- 1. Log in to that site as an administrator. -->
 449  <!-- 2. Go to Tools: Import in the WordPress admin panel. -->
 450  <!-- 3. Install the "WordPress" importer from the list. -->
 451  <!-- 4. Activate & Run Importer. -->
 452  <!-- 5. Upload this file using the form provided on that page. -->
 453  <!-- 6. You will first be asked to map the authors in this export file to users -->
 454  <!--    on the site. For each author, you may choose to map to an -->
 455  <!--    existing user on the site or to create a new user. -->
 456  <!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. -->
 457  <!--    contained in this file into your site. -->
 458  
 459      <?php the_generator( 'export' ); ?>
 460  <rss version="2.0"
 461      xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/"
 462      xmlns:content="http://purl.org/rss/1.0/modules/content/"
 463      xmlns:wfw="http://wellformedweb.org/CommentAPI/"
 464      xmlns:dc="http://purl.org/dc/elements/1.1/"
 465      xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/"
 466  >
 467  
 468  <channel>
 469      <title><?php bloginfo_rss( 'name' ); ?></title>
 470      <link><?php bloginfo_rss( 'url' ); ?></link>
 471      <description><?php bloginfo_rss( 'description' ); ?></description>
 472      <pubDate><?php echo gmdate( 'D, d M Y H:i:s +0000' ); ?></pubDate>
 473      <language><?php bloginfo_rss( 'language' ); ?></language>
 474      <wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version>
 475      <wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url>
 476      <wp:base_blog_url><?php bloginfo_rss( 'url' ); ?></wp:base_blog_url>
 477  
 478      <?php wxr_authors_list( $post_ids ); ?>
 479  
 480      <?php foreach ( $cats as $c ) : ?>
 481      <wp:category>
 482          <wp:term_id><?php echo (int) $c->term_id; ?></wp:term_id>
 483          <wp:category_nicename><?php echo wxr_cdata( $c->slug ); ?></wp:category_nicename>
 484          <wp:category_parent><?php echo wxr_cdata( $c->parent ? $cats[ $c->parent ]->slug : '' ); ?></wp:category_parent>
 485          <?php
 486          wxr_cat_name( $c );
 487          wxr_category_description( $c );
 488          wxr_term_meta( $c );
 489          ?>
 490      </wp:category>
 491      <?php endforeach; ?>
 492      <?php foreach ( $tags as $t ) : ?>
 493      <wp:tag>
 494          <wp:term_id><?php echo (int) $t->term_id; ?></wp:term_id>
 495          <wp:tag_slug><?php echo wxr_cdata( $t->slug ); ?></wp:tag_slug>
 496          <?php
 497          wxr_tag_name( $t );
 498          wxr_tag_description( $t );
 499          wxr_term_meta( $t );
 500          ?>
 501      </wp:tag>
 502      <?php endforeach; ?>
 503      <?php foreach ( $terms as $t ) : ?>
 504      <wp:term>
 505          <wp:term_id><?php echo (int) $t->term_id; ?></wp:term_id>
 506          <wp:term_taxonomy><?php echo wxr_cdata( $t->taxonomy ); ?></wp:term_taxonomy>
 507          <wp:term_slug><?php echo wxr_cdata( $t->slug ); ?></wp:term_slug>
 508          <wp:term_parent><?php echo wxr_cdata( $t->parent ? $terms[ $t->parent ]->slug : '' ); ?></wp:term_parent>
 509          <?php
 510          wxr_term_name( $t );
 511          wxr_term_description( $t );
 512          wxr_term_meta( $t );
 513          ?>
 514      </wp:term>
 515      <?php endforeach; ?>
 516      <?php
 517      if ( 'all' === $args['content'] ) {
 518          wxr_nav_menu_terms();}
 519      ?>
 520  
 521      <?php
 522      /** This action is documented in wp-includes/feed-rss2.php */
 523      do_action( 'rss2_head' );
 524      ?>
 525  
 526      <?php
 527      if ( $post_ids ) {
 528          /**
 529           * @global WP_Query $wp_query WordPress Query object.
 530           */
 531          global $wp_query;
 532  
 533          // Fake being in the loop.
 534          $wp_query->in_the_loop = true;
 535  
 536          // Fetch 20 posts at a time rather than loading the entire table into memory.
 537          while ( $next_posts = array_splice( $post_ids, 0, 20 ) ) {
 538              $where = 'WHERE ID IN (' . implode( ',', $next_posts ) . ')';
 539              $posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" );
 540  
 541              // Begin Loop.
 542              foreach ( $posts as $post ) {
 543                  setup_postdata( $post );
 544  
 545                  /**
 546                   * Filters the post title used for WXR exports.
 547                   *
 548                   * @since 5.7.0
 549                   *
 550                   * @param string $post_title Title of the current post.
 551                   */
 552                  $title = wxr_cdata( apply_filters( 'the_title_export', $post->post_title ) );
 553  
 554                  /**
 555                   * Filters the post content used for WXR exports.
 556                   *
 557                   * @since 2.5.0
 558                   *
 559                   * @param string $post_content Content of the current post.
 560                   */
 561                  $content = wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) );
 562  
 563                  /**
 564                   * Filters the post excerpt used for WXR exports.
 565                   *
 566                   * @since 2.6.0
 567                   *
 568                   * @param string $post_excerpt Excerpt for the current post.
 569                   */
 570                  $excerpt = wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) );
 571  
 572                  $is_sticky = is_sticky( $post->ID ) ? 1 : 0;
 573                  ?>
 574      <item>
 575          <title><?php echo $title; ?></title>
 576          <link><?php the_permalink_rss(); ?></link>
 577          <pubDate><?php echo mysql2date( 'D, d M Y H:i:s +0000', get_post_time( 'Y-m-d H:i:s', true ), false ); ?></pubDate>
 578          <dc:creator><?php echo wxr_cdata( get_the_author_meta( 'login' ) ); ?></dc:creator>
 579          <guid isPermaLink="false"><?php the_guid(); ?></guid>
 580          <description></description>
 581          <content:encoded><?php echo $content; ?></content:encoded>
 582          <excerpt:encoded><?php echo $excerpt; ?></excerpt:encoded>
 583          <wp:post_id><?php echo (int) $post->ID; ?></wp:post_id>
 584          <wp:post_date><?php echo wxr_cdata( $post->post_date ); ?></wp:post_date>
 585          <wp:post_date_gmt><?php echo wxr_cdata( $post->post_date_gmt ); ?></wp:post_date_gmt>
 586          <wp:post_modified><?php echo wxr_cdata( $post->post_modified ); ?></wp:post_modified>
 587          <wp:post_modified_gmt><?php echo wxr_cdata( $post->post_modified_gmt ); ?></wp:post_modified_gmt>
 588          <wp:comment_status><?php echo wxr_cdata( $post->comment_status ); ?></wp:comment_status>
 589          <wp:ping_status><?php echo wxr_cdata( $post->ping_status ); ?></wp:ping_status>
 590          <wp:post_name><?php echo wxr_cdata( $post->post_name ); ?></wp:post_name>
 591          <wp:status><?php echo wxr_cdata( $post->post_status ); ?></wp:status>
 592          <wp:post_parent><?php echo (int) $post->post_parent; ?></wp:post_parent>
 593          <wp:menu_order><?php echo (int) $post->menu_order; ?></wp:menu_order>
 594          <wp:post_type><?php echo wxr_cdata( $post->post_type ); ?></wp:post_type>
 595          <wp:post_password><?php echo wxr_cdata( $post->post_password ); ?></wp:post_password>
 596          <wp:is_sticky><?php echo (int) $is_sticky; ?></wp:is_sticky>
 597                  <?php    if ( 'attachment' === $post->post_type ) : ?>
 598          <wp:attachment_url><?php echo wxr_cdata( wp_get_attachment_url( $post->ID ) ); ?></wp:attachment_url>
 599      <?php endif; ?>
 600                  <?php wxr_post_taxonomy(); ?>
 601                  <?php
 602                  $postmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID ) );
 603                  foreach ( $postmeta as $meta ) :
 604                      /**
 605                       * Filters whether to selectively skip post meta used for WXR exports.
 606                       *
 607                       * Returning a truthy value from the filter will skip the current meta
 608                       * object from being exported.
 609                       *
 610                       * @since 3.3.0
 611                       *
 612                       * @param bool   $skip     Whether to skip the current post meta. Default false.
 613                       * @param string $meta_key Current meta key.
 614                       * @param object $meta     Current meta object.
 615                       */
 616                      if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) ) {
 617                          continue;
 618                      }
 619                      ?>
 620          <wp:postmeta>
 621          <wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key>
 622          <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
 623          </wp:postmeta>
 624                      <?php
 625      endforeach;
 626  
 627                  $_comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) );
 628                  $comments  = array_map( 'get_comment', $_comments );
 629                  foreach ( $comments as $c ) :
 630                      ?>
 631          <wp:comment>
 632              <wp:comment_id><?php echo (int) $c->comment_ID; ?></wp:comment_id>
 633              <wp:comment_author><?php echo wxr_cdata( $c->comment_author ); ?></wp:comment_author>
 634              <wp:comment_author_email><?php echo wxr_cdata( $c->comment_author_email ); ?></wp:comment_author_email>
 635              <wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url>
 636              <wp:comment_author_IP><?php echo wxr_cdata( $c->comment_author_IP ); ?></wp:comment_author_IP>
 637              <wp:comment_date><?php echo wxr_cdata( $c->comment_date ); ?></wp:comment_date>
 638              <wp:comment_date_gmt><?php echo wxr_cdata( $c->comment_date_gmt ); ?></wp:comment_date_gmt>
 639              <wp:comment_content><?php echo wxr_cdata( $c->comment_content ); ?></wp:comment_content>
 640              <wp:comment_approved><?php echo wxr_cdata( $c->comment_approved ); ?></wp:comment_approved>
 641              <wp:comment_type><?php echo wxr_cdata( $c->comment_type ); ?></wp:comment_type>
 642              <wp:comment_parent><?php echo (int) $c->comment_parent; ?></wp:comment_parent>
 643              <wp:comment_user_id><?php echo (int) $c->user_id; ?></wp:comment_user_id>
 644                      <?php
 645                      $c_meta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->commentmeta WHERE comment_id = %d", $c->comment_ID ) );
 646                      foreach ( $c_meta as $meta ) :
 647                          /**
 648                           * Filters whether to selectively skip comment meta used for WXR exports.
 649                           *
 650                           * Returning a truthy value from the filter will skip the current meta
 651                           * object from being exported.
 652                           *
 653                           * @since 4.0.0
 654                           *
 655                           * @param bool   $skip     Whether to skip the current comment meta. Default false.
 656                           * @param string $meta_key Current meta key.
 657                           * @param object $meta     Current meta object.
 658                           */
 659                          if ( apply_filters( 'wxr_export_skip_commentmeta', false, $meta->meta_key, $meta ) ) {
 660                              continue;
 661                          }
 662                          ?>
 663      <wp:commentmeta>
 664      <wp:meta_key><?php echo wxr_cdata( $meta->meta_key ); ?></wp:meta_key>
 665              <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value>
 666              </wp:commentmeta>
 667                      <?php    endforeach; ?>
 668          </wp:comment>
 669              <?php    endforeach; ?>
 670          </item>
 671                  <?php
 672              }
 673          }
 674      }
 675      ?>
 676  </channel>
 677  </rss>
 678      <?php
 679  }