WordPress requirement issue with wp_json_encode

Plugin description says it requires WP 3.8 or higher… however it’s using the “wp_json_encode” function which requires WP 4.1+.

Using WP 3.9.6 it throws the following error sporadically:

Fatal error: Call to undefined function wp_json_encode() in /wp-content/plugins/wp-rollback/wp-rollback.php on line 615

So, you may need to adjust your minimum or come up with a pre-4.1 alternative.

Ref: https://developer.www.ads-software.com/reference/functions/wp_json_encode/

https://www.ads-software.com/plugins/wp-rollback/