Ticket #62627: 62627.patch

src/wp-includes/class-wp-query.php

@@ -1015 +1015 @@
                         $this->is_admin = true;
                 }
 
-                if ( str_contains( $qv['feed'], 'comments-' ) ) {
+                if ( is_string( $qv['feed'] ) && str_contains( $qv['feed'], 'comments-' ) ) {
                         $qv['feed']         = str_replace( 'comments-', '', $qv['feed'] );
                         $qv['withcomments'] = 1;
                 }

src/wp-includes/class-wp.php

@@ -469 +469 @@
                 } else {
                         // Set the correct content type for feeds.
                         $type = $this->query_vars['feed'];
+
+                        // Ensure $type is a string
+                        if ( ! is_string( $type ) ) {
+                                $type = get_default_feed();
+                        }
+
                         if ( 'feed' === $this->query_vars['feed'] ) {
                                 $type = get_default_feed();
                         }
@@ -477 +483 @@
 
                         // We're showing a feed, so WP is indeed the only thing that last changed.
                         if ( ! empty( $this->query_vars['withcomments'] )
-                                || str_contains( $this->query_vars['feed'], 'comments-' )
+                                || ( is_string( $this->query_vars['feed'] ) && str_contains( $this->query_vars['feed'], 'comments-' ) )
                                 || ( empty( $this->query_vars['withoutcomments'] )
                                         && ( ! empty( $this->query_vars['p'] )
                                                 || ! empty( $this->query_vars['name'] )