From 733ec3da48353bea73d6c4b332a76e8fed18389f Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Mon, 1 Apr 2019 12:47:51 +0000
Subject: [PATCH] Docs: Improve documentation for `postbox_classes()`.

Rename `$page` and `$id` variables to `$screen_id` and `$box_id` for clarity.

Props sharifkiberu, DrewAPicture.
Fixes #45179.
Built from https://develop.svn.wordpress.org/trunk@45083


git-svn-id: http://core.svn.wordpress.org/trunk@44892 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/post.php | 22 +++++++++++-----------
 wp-includes/version.php    |  2 +-
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/wp-admin/includes/post.php b/wp-admin/includes/post.php
index 5fcb76e544..ef732407de 100644
--- a/wp-admin/includes/post.php
+++ b/wp-admin/includes/post.php
@@ -1291,34 +1291,34 @@ function wp_edit_attachments_query( $q = false ) {
  *
  * @since 2.5.0
  *
- * @param string $id
- * @param string $page
- * @return string
+ * @param string $box_id    Meta box ID (used in the 'id' attribute for the meta box).
+ * @param string $screen_id The screen on which the meta box is shown.
+ * @return string Space-separated string of class names.
  */
-function postbox_classes( $id, $page ) {
-	if ( isset( $_GET['edit'] ) && $_GET['edit'] == $id ) {
+function postbox_classes( $box_id, $screen_id ) {
+	if ( isset( $_GET['edit'] ) && $_GET['edit'] == $box_id ) {
 		$classes = array( '' );
-	} elseif ( $closed = get_user_option( 'closedpostboxes_' . $page ) ) {
+	} elseif ( $closed = get_user_option( 'closedpostboxes_' . $screen_id ) ) {
 		if ( ! is_array( $closed ) ) {
 			$classes = array( '' );
 		} else {
-			$classes = in_array( $id, $closed ) ? array( 'closed' ) : array( '' );
+			$classes = in_array( $box_id, $closed ) ? array( 'closed' ) : array( '' );
 		}
 	} else {
 		$classes = array( '' );
 	}
 
 	/**
-	 * Filters the postbox classes for a specific screen and screen ID combo.
+	 * Filters the postbox classes for a specific screen and box ID combo.
 	 *
-	 * The dynamic portions of the hook name, `$page` and `$id`, refer to
-	 * the screen and screen ID, respectively.
+	 * The dynamic portions of the hook name, `$screen_id` and `$box_id`, refer to
+	 * the screen ID and meta box ID, respectively.
 	 *
 	 * @since 3.2.0
 	 *
 	 * @param string[] $classes An array of postbox classes.
 	 */
-	$classes = apply_filters( "postbox_classes_{$page}_{$id}", $classes );
+	$classes = apply_filters( "postbox_classes_{$screen_id}_{$box_id}", $classes );
 	return implode( ' ', $classes );
 }
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 080f67f185..a50b29815f 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.2-beta1-45082';
+$wp_version = '5.2-beta1-45083';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.