Call to undefined function php_uname()

Hi @fruitbat,

It sounds like you’re facing a couple of frustrating issues after your WooCommerce update. Let’s tackle that fatal error first, as it’s the more critical one.

The “Uncaught Error: Call to undefined function php_uname()” means a function WooCommerce needs (php_uname()) isn’t available in your PHP environment. This error is critical; it can crash your site or stop features from working, so it definitely needs fixing for site stability. The function being disabled is the cause; the solution is a workaround.

You’re not alone with this EasyWP issue. Another user on EasyWP faced the exact same php_uname() error after an update and found a workaround, as seen in this ww.wp.xz.cn thread: https://ww.wp.xz.cn/support/topic/critical-uncaught-error-after-9-9-3/#post-18505205

To resolve it, add this code to your theme’s functions.php file:

if ( ! function_exists( 'php_uname' ) ) {
  function php_uname( $mode = 'a' ) {
    return 'n/a';
  }
}

Always back up your functions.php before editing, or use a child theme.

The duplicated store notice (when set “above” but not “below”) suggests a theme or plugin conflict, likely with Kadence. It’s common for themes to handle notice display differently. Once the fatal error is fixed, if the notice duplication continues, we recommend temporarily switching to a default WordPress theme (e.g., Twenty Twenty-Four) to see if the issue disappears. You might also consider contacting Kadence support, as they may have specific guidance for this interaction with WooCommerce.

Let us know if the php_uname() workaround resolves your critical error!