From 1eb542e7faa4ecf77ed78cc24f3aab5b324ce038 Mon Sep 17 00:00:00 2001
From: Weston Ruter <weston@xwp.co>
Date: Wed, 30 May 2018 22:29:06 -0700
Subject: [PATCH] Fix adding images to AMP carousel gallery

---
 .../class-amp-gallery-block-sanitizer.php          | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/includes/sanitizers/class-amp-gallery-block-sanitizer.php b/includes/sanitizers/class-amp-gallery-block-sanitizer.php
index 09b753d2625..07ba6c6ffbd 100644
--- a/includes/sanitizers/class-amp-gallery-block-sanitizer.php
+++ b/includes/sanitizers/class-amp-gallery-block-sanitizer.php
@@ -97,20 +97,24 @@ public function sanitize() {
 				continue;
 			}
 
-			$images = null;
+			$images = array();
 
 			// If it's not AMP lightbox, look for links first.
 			if ( ! $is_amp_lightbox ) {
-				$images = $node->getElementsByTagName( 'a' );
+				foreach ( $node->getElementsByTagName( 'a' ) as $element ) {
+					$images[] = $element;
+				}
 			}
 
 			// If not linking to anything then look for <amp-img>.
-			if ( ! $images || 0 === $images->length ) {
-				$images = $node->getElementsByTagName( 'amp-img' );
+			if ( empty( $images ) ) {
+				foreach ( $node->getElementsByTagName( 'amp-img' ) as $element ) {
+					$images[] = $element;
+				}
 			}
 
 			// Skip if no images found.
-			if ( ! $images || 0 === $images->length ) {
+			if ( empty( $images ) ) {
 				continue;
 			}