Reply To: Fatal error: Call to undefined function filter_var()

• Elliot

• October 29, 2013 at 5:41 pm

Hi @berdych

the filter_var function is a core PHP function since 5.2

Perhaps you are running an older version of PHP?

I’ll take a look at the core of WP and see what I can use for better compatibility with old PHP versions.

For now, you can either modify the core code or upgrade your PHP version

Thanks
E