From 49da4afcf03f6eea5aba20b42abc0130fc9e2749 Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov@git.wordpress.org>
Date: Sun, 16 Oct 2022 15:44:18 +0000
Subject: [PATCH] Docs: Clarify default values for a few block function
 parameters.

This applies to:
* `$block_name` in `strip_core_block_namespace()`
* `$allowed_html` in `filter_block_content()`
* `$pagination_type` in `get_comments_pagination_arrow()`

Follow-up to [46896], [48794], [53138], [54181].

Props rakibwordpress, ironprogrammer, sabernhardt, SergeyBiryukov.
Fixes #56596.

git-svn-id: https://develop.svn.wordpress.org/trunk@54520 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/blocks.php | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php
index 30219f3ca0..29e375ab89 100644
--- a/src/wp-includes/blocks.php
+++ b/src/wp-includes/blocks.php
@@ -687,7 +687,8 @@ function serialize_block_attributes( $block_attributes ) {
  *
  * @since 5.3.1
  *
- * @param string $block_name Original block name.
+ * @param string|null $block_name Optional. Original block name. Null if the block name is unknown,
+ *                                e.g. Classic blocks have their name set to null. Default null.
  * @return string Block name to use for serialization.
  */
 function strip_core_block_namespace( $block_name = null ) {
@@ -783,9 +784,9 @@ function serialize_blocks( $blocks ) {
  * @since 5.3.1
  *
  * @param string         $text              Text that may contain block content.
- * @param array[]|string $allowed_html      An array of allowed HTML elements and attributes,
+ * @param array[]|string $allowed_html      Optional. An array of allowed HTML elements and attributes,
  *                                          or a context name such as 'post'. See wp_kses_allowed_html()
- *                                          for the list of accepted context names.
+ *                                          for the list of accepted context names. Default 'post'.
  * @param string[]       $allowed_protocols Optional. Array of allowed URL protocols.
  *                                          Defaults to the result of wp_allowed_protocols().
  * @return string The filtered and sanitized content result.
@@ -1412,7 +1413,6 @@ function get_query_pagination_arrow( $block, $is_next ) {
  * @since 6.0.0
  *
  * @param WP_Block $block Block instance.
- *
  * @return array Returns the comment query parameters to use with the
  *               WP_Comment_Query constructor.
  */
@@ -1483,9 +1483,8 @@ function build_comment_query_vars_from_block( $block ) {
  * @since 6.0.0
  *
  * @param WP_Block $block           Block instance.
- * @param string   $pagination_type Type of the arrow we will be rendering.
- *                                  Default 'next'. Accepts 'next' or 'previous'.
- *
+ * @param string   $pagination_type Optional. Type of the arrow we will be rendering.
+ *                                  Accepts 'next' or 'previous'. Default 'next'.
  * @return string|null The pagination arrow HTML or null if there is none.
  */
 function get_comments_pagination_arrow( $block, $pagination_type = 'next' ) {