From 404043cafce406bf6079ab43807aaebeb0ad2749 Mon Sep 17 00:00:00 2001
From: Daniel Seripap <683200+seripap@users.noreply.github.com>
Date: Thu, 4 Nov 2021 11:58:32 -0400
Subject: [PATCH] Check if value is string before applying filter, fixes #564

---
 includes/fields/class-acf-field-wysiwyg.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/includes/fields/class-acf-field-wysiwyg.php b/includes/fields/class-acf-field-wysiwyg.php
index 367e295a..6617645d 100644
--- a/includes/fields/class-acf-field-wysiwyg.php
+++ b/includes/fields/class-acf-field-wysiwyg.php
@@ -428,12 +428,15 @@ function format_value( $value, $post_id, $field ) {
 				return $value;
 
 			}
+			
+			if ( is_string( $value ) ) {
 
-			// apply filters
-			$value = apply_filters( 'acf_the_content', $value );
+				// apply filters
+				$value = apply_filters( 'acf_the_content', $value );
 
-			// follow the_content function in /wp-includes/post-template.php
-			$value = str_replace( ']]>', ']]&gt;', $value );
+				// follow the_content function in /wp-includes/post-template.php
+				$value = str_replace( ']]>', ']]&gt;', $value );
+			}
 
 			return $value;
 		}