start
https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/
// Enable WP_DEBUG mode define( 'WP_DEBUG', true ); // Enable Debug logging to the /wp-content/debug.log file define( 'WP_DEBUG_LOG', true ); // Disable display of errors and warnings define( 'WP_DEBUG_DISPLAY', false ); @ini_set( 'display_errors', 0 );
next
add_filter( 'woocommerce_product_tabs', 'jkpagency_debug_tabs' ); function jkpagency_debug_tabs( $tabs ) { // Debug tabs values error_log( 'This is what is inside $tabs variable: ' . print_r( $tabs, true ) ); return $tabs; }
end