Multisite: Deprecate `is_user_option_local()`.

`is_user_option_local()` was added during MU development and used for a handful of changesets before the code using it was removed again. It has not been used by MU or core since nor is it widely used elsewhere.

Fixes #41697.
Props bnap00, jeremyfelt.

Built from https://develop.svn.wordpress.org/trunk@41668


git-svn-id: http://core.svn.wordpress.org/trunk@41502 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/ms-deprecated.php

@@ -519,3 +519,30 @@ function wp_get_sites( $args = array() ) {
 
 	return $results;
 }
+
+/**
+ * Check whether a usermeta key has to do with the current blog.
+ *
+ * @since MU (3.0.0)
+ * @deprecated 4.9.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param string $key
+ * @param int    $user_id Optional. Defaults to current user.
+ * @param int    $blog_id Optional. Defaults to current blog.
+ * @return bool
+ */
+function is_user_option_local( $key, $user_id = 0, $blog_id = 0 ) {
+	global $wpdb;
+
+	_deprecated_function( __FUNCTION__, '4.9.0' );
+
+	$current_user = wp_get_current_user();
+	if ( $blog_id == 0 ) {
+		$blog_id = get_current_blog_id();
+	}
+	$local_key = $wpdb->get_blog_prefix( $blog_id ) . $key;
+
+	return isset( $current_user->$local_key );
+}

wp-includes/ms-functions.php

@@ -2200,30 +2200,6 @@ function update_blog_public( $old_value, $value ) {
 	update_blog_status( get_current_blog_id(), 'public', (int) $value );
 }
 
-/**
- * Check whether a usermeta key has to do with the current blog.
- *
- * @since MU (3.0.0)
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param string $key
- * @param int    $user_id Optional. Defaults to current user.
- * @param int    $blog_id Optional. Defaults to current blog.
- * @return bool
- */
-function is_user_option_local( $key, $user_id = 0, $blog_id = 0 ) {
-	global $wpdb;
-
-	$current_user = wp_get_current_user();
-	if ( $blog_id == 0 ) {
-		$blog_id = get_current_blog_id();
-	}
-	$local_key = $wpdb->get_blog_prefix( $blog_id ) . $key;
-
-	return isset( $current_user->$local_key );
-}
-
 /**
  * Check whether users can self-register, based on Network settings.
  *

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-41667';
+$wp_version = '4.9-alpha-41668';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.