edd_checkout_cart_columns replacement
function edd_checkout_cart_columns() {
global $wp_filter;
$head_first = 0;
$head_last = 0;
if( isset( $wp_filter['edd_checkout_table_header_first'] ) ){
$head_first = count( $wp_filter['edd_checkout_table_header_first'] );
}
if( isset( $wp_filter['edd_checkout_table_header_last'] ) ){
$head_last = count( $wp_filter['edd_checkout_table_header_last'] );
}
$default = 3;
return apply_filters( 'edd_checkout_cart_columns', $head_first + $head_last + $default );
}