Changeset 61540 for branches/6.9/src/wp-admin/includes/export.php

Timestamp:

01/27/2026 10:12:40 PM (7 months ago)

Author:

jorbin

Message:

Export: Fix fatal error when passing null to wxr_cdata() by casting passed value to string.

This ensures that wp_is_valid_utf8() does not cause a type error since it only accepts strings.

Developed in ​https://github.com/WordPress/wordpress-develop/pull/10595

Follow-up to [60630].

Reviewed-by jorbin.
Merges [61405] to the 6.9 branch.

Props hbhalodia, westonruter, desrosj, albigdd, jorbin.
See #38044.
Fixes #64347.

File:

• branches/6.9/src/wp-admin/includes/export.php (modified) (1 diff)

branches/6.9/src/wp-admin/includes/export.php

@@ -240 +240 @@
          * @since 2.1.0
          *
-         * @param string $str String to wrap in XML CDATA tag.
+         * @param string|null $str String to wrap in XML CDATA tag. May be null.
          * @return string
          */
         function wxr_cdata( $str ) {
+                $str = (string) $str;
+
                 if ( ! wp_is_valid_utf8( $str ) ) {
                         $str = utf8_encode( $str );