From def933ced79b8faeb4c990ef9935ed8ba6130199 Mon Sep 17 00:00:00 2001
From: Jake Spurlock <whyisjake@git.wordpress.org>
Date: Tue, 16 Jun 2020 06:28:57 +0000
Subject: [PATCH] Cache API: Add `wp_cache_get_multiple()` to core functions.

* `update_object_term_cache`
* `update_meta_cache`
* `_get_non_cached_ids`

See [47938].

Fixes #50352.

Props spacedmonkey, tillkruss, lukecavanagh.



git-svn-id: https://develop.svn.wordpress.org/trunk@48055 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/functions.php |  7 ++++---
 src/wp-includes/meta.php      | 10 +++++-----
 src/wp-includes/taxonomy.php  |  9 +++++----
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 46a9db42bf..2edb6a6a11 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -6359,10 +6359,11 @@ function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pr
  * @return int[] Array of IDs not present in the cache.
  */
 function _get_non_cached_ids( $object_ids, $cache_key ) {
-	$clean = array();
-	foreach ( $object_ids as $id ) {
+	$clean        = array();
+	$cache_values = wp_cache_get_multiple( $object_ids, $cache_key );
+	foreach ( $cache_values as $id => $cache_value ) {
 		$id = (int) $id;
-		if ( ! wp_cache_get( $id, $cache_key ) ) {
+		if ( ! $cache_value ) {
 			$clean[] = $id;
 		}
 	}
diff --git a/src/wp-includes/meta.php b/src/wp-includes/meta.php
index de00456c78..c34e724db2 100644
--- a/src/wp-includes/meta.php
+++ b/src/wp-includes/meta.php
@@ -926,11 +926,11 @@ function update_meta_cache( $meta_type, $object_ids ) {
 		return (bool) $check;
 	}
 
-	$cache_key = $meta_type . '_meta';
-	$ids       = array();
-	$cache     = array();
-	foreach ( $object_ids as $id ) {
-		$cached_object = wp_cache_get( $id, $cache_key );
+	$cache_key    = $meta_type . '_meta';
+	$ids          = array();
+	$cache        = array();
+	$cache_values = wp_cache_get_multiple( $object_ids, $cache_key );
+	foreach ( $cache_values as $id => $cached_object ) {
 		if ( false === $cached_object ) {
 			$ids[] = $id;
 		} else {
diff --git a/src/wp-includes/taxonomy.php b/src/wp-includes/taxonomy.php
index c8f2d4efa1..b8bbc5048b 100644
--- a/src/wp-includes/taxonomy.php
+++ b/src/wp-includes/taxonomy.php
@@ -3410,10 +3410,11 @@ function update_object_term_cache( $object_ids, $object_type ) {
 	$taxonomies = get_object_taxonomies( $object_type );
 
 	$ids = array();
-	foreach ( (array) $object_ids as $id ) {
-		foreach ( $taxonomies as $taxonomy ) {
-			if ( false === wp_cache_get( $id, "{$taxonomy}_relationships" ) ) {
-				$ids[] = $id;
+	foreach ( $taxonomies as $taxonomy ) {
+		$cache_values = wp_cache_get_multiple( (array) $object_ids, "{$taxonomy}_relationships" );
+		foreach ( $cache_values as $key => $value ) {
+			if ( false === $value ) {
+				$ids[] = $key;
 				break;
 			}
 		}